The sunniest cities in the United States are not all sunny in the same way.
Some places, like Yuma, Phoenix, Tucson, and Las Vegas, are sunny because they sit in desert climates with frequent clear skies and very little cloud cover. Some, like Sacramento and Fresno, receive intense summer sunshine but more seasonal cloudiness in winter. Others, such as Los Angeles, San Diego, Honolulu, Miami, Denver, and Oklahoma City, are sunny for different reasons: coastal patterns, high elevation, subtropical warmth, or wide-open plains.
So before ranking the sunniest cities, we need to define the word sunniest.
In this article, “sunniest” mainly means percent possible sunshine: the percentage of daylight hours when sunshine actually reaches the ground. This is different from simply counting hot days. It is also different from ranking cities by temperature.
A city can be sunny without being the hottest city in America. A city can also be hot without having the highest percentage of sunshine.
For major U.S. city comparisons, CurrentResults summarizes annual sunshine by percent sun, total hours of sun, and clear days. It defines percent sunshine as the percentage of daylight time when sunlight reaches the earth’s surface, and clear days as days when clouds cover less than one-third of the sky on average. 1
1. The Important Caveat: Yuma Changes the Ranking
If we include smaller U.S. cities, Yuma, Arizona deserves special attention.
Yuma is widely described as one of the sunniest places on Earth. CurrentResults notes that Yuma is the only place on Earth confirmed to receive more than 4,000 hours of sunshine per year, with sunshine for about 90 percent of daylight hours. 2
That means there are two useful ways to look at America’s sunniest cities:
- Sunniest U.S. city overall: Yuma, Arizona has the strongest claim.
- Sunniest major U.S. cities: Phoenix, Tucson, and Las Vegas lead the major-city rankings.
Both perspectives are useful. They simply answer slightly different questions.
2. Yuma, Arizona: The Sunniest City in the United States
Yuma is the city that makes every sunniest-city list feel slightly unfair.
Located in southwest Arizona near the California and Mexico borders, Yuma sits in a desert climate where clear skies are normal rather than unusual. The city is often associated with over 4,000 annual sunshine hours and around 90 percent sunshine. 2
That is a huge amount of sunlight.
Yuma’s sunshine is part of its identity. It helps shape agriculture, winter tourism, outdoor life, solar potential, and the way people plan their day. But it also comes with real intensity. In a place this sunny, shade is not a luxury. It is part of daily comfort.
If you live in or visit a place like Yuma, sun protection matters. That means sunscreen, sunglasses, hats, shade breaks, and UPF-rated gear. A sun umbrella is not a replacement for sunscreen, but it can be a useful extra layer of portable shade.
We explain this more in our guide to whether an umbrella can protect you from UV rays.
3. Phoenix, Arizona: The Sunniest Major City
Among major U.S. cities, Phoenix is one of the clearest sunshine leaders.
CurrentResults lists Phoenix at 85 percent sunshine, about 3,872 hours of sun per year, and around 211 clear days annually. 1
Phoenix is sunny because of its desert setting, dry air, and frequent clear skies. Rain does happen, especially during monsoon season, but sunshine still dominates the year.
The important thing about Phoenix sunshine is that it can be beautiful and extreme at the same time.
This is not gentle spring sunshine. In summer, Phoenix sun can combine with very high temperatures, low humidity, and long daylight exposure. For people walking, commuting, hiking, golfing, shopping outdoors, or waiting in parking lots, shade becomes practical.
That is one reason umbrellas are not only rain tools. In very sunny cities, the right umbrella can become a portable shade accessory.
4. Las Vegas, Nevada: Desert Sun and Clear Skies
Las Vegas is another major sunshine powerhouse.
CurrentResults lists Las Vegas at 85 percent sunshine, about 3,825 hours of sun per year, and around 210 clear days. 1
Like Phoenix, Las Vegas benefits from dry desert air and frequent cloud-free weather. The Mojave Desert climate produces bright days, sharp shadows, and long stretches of sun.
But the Las Vegas version of sunshine is not just about vacation photos.
The city has large parking lots, outdoor resorts, festival spaces, desert hikes, golf courses, pool decks, and long walks between hotels and attractions. That makes sun exposure part of the travel experience.
If you are visiting Las Vegas, think beyond temperature. Think about sunlight duration, reflected heat from pavement, and UV exposure during midday.
5. Tucson, Arizona: Desert Sunshine With a Different Rhythm
Tucson is another Arizona sunshine giant.
CurrentResults places Tucson at 85 percent sunshine and around 193 clear days per year. 1
Tucson’s sunshine is tied to its Sonoran Desert setting. The city has bright skies, strong sun, and dramatic mountain backdrops. It can also feel slightly different from Phoenix because of elevation, landscape, and local weather patterns.
The point is simple: Arizona dominates the sunshine conversation.
Yuma may be the extreme case. Phoenix and Tucson show how sunshine shapes major metro life: homes, cars, outdoor dining, hiking, cycling, golf, and daily errands.
6. Fresno, California: Central Valley Sun
Fresno is one of the sunniest major cities in California.
CurrentResults lists Fresno at 79 percent sunshine and around 194 clear days per year. 1
Fresno’s sunshine comes from its Central Valley climate. Summers are typically hot, dry, and bright, while winter can bring more fog, clouds, and seasonal variation.
That means Fresno is not sunny in the same way as Yuma or Phoenix.
It is intensely sunny for much of the warm season, but not as continuously desert-clear across the entire year.
7. Sacramento, California: Extremely Sunny Summers
Sacramento ranks high for annual sunshine, but its story is seasonal.
CurrentResults lists Sacramento at 78 percent sunshine, about 3,608 hours of sun per year, and around 188 clear days. 1
It also notes something interesting: Sacramento gets especially sunny in July and August, when the sun shines 96 percent of the time and most days have mainly clear skies. 1
That makes Sacramento a good reminder that “sunniest” can depend on season.
In summer, Sacramento can feel almost relentlessly bright. In winter, clouds and cooler-season weather become more important.
8. Los Angeles, California: Sunshine With Coastal Complexity
Los Angeles is sunny, but not in the same way as inland desert cities.
CurrentResults lists Los Angeles at 73 percent sunshine and around 147 clear days per year. 1
The coastal influence matters. Marine layers, haze, seasonal patterns, and neighborhood microclimates can all change how sunny Los Angeles feels. A morning near the coast can be gray while inland areas are already bright.
Still, Los Angeles belongs on the sunniest-city list because the overall annual sunshine is high.
For everyday life, this means UV protection is not only a beach issue. It matters while driving, walking the dog, eating outside, watching sports, or standing in a parking lot.
We cover the beauty and skin-health side of this in our article on what causes skin aging and wrinkles.
9. Honolulu, Hawaii: Tropical Sunshine, Trade Winds, and UV
Honolulu is sunny, tropical, and very different from the desert cities on this list.
CurrentResults lists Honolulu at 71 percent sunshine and around 90 clear days annually. 1
That lower clear-day count may surprise people, but it makes sense. Tropical climates can include passing clouds and showers while still feeling bright and sunny overall.
Honolulu’s sun is also important because of latitude. Lower-latitude locations can experience stronger sun angles than many northern cities.
If you are spending long days in Honolulu, think in layers: sunscreen, shade, hat, sunglasses, water, and sun-protective clothing or umbrellas when appropriate.
10. Miami, Florida: Sunny and Rainy at the Same Time
Miami is a perfect example of why climate rankings can be confusing.
It is one of America’s sunniest major cities, but it is also one of America’s rainiest major cities by annual rainfall.
CurrentResults lists Miami at 70 percent sunshine, about 3,154 hours of sun per year, and around 74 clear days. 1
The reason is that Miami can be very sunny and very wet. South Florida often gets intense warm-season downpours, but those storms may not erase the city’s large annual sunshine total.
In other words, Miami is not a gray rainy city.
It is a bright tropical city that also receives serious rain.
11. Denver, Colorado: High-Elevation Sunshine
Denver has a different kind of sunshine story.
CurrentResults lists Denver at 69 percent sunshine, about 3,107 hours of sun per year, and around 115 clear days. 1
Denver’s sunshine is shaped by elevation, dry air, and its position near the Rocky Mountains. The city can have bright clear skies even during colder months, which helps explain its sunny reputation.
High-elevation sunshine also deserves respect. UV exposure can increase with altitude, so Denver’s sun can feel stronger than people expect.
EPA recommends checking the UV Index and using sun protection such as shade, broad-spectrum sunscreen, protective clothing, hats, and sunglasses when needed. 3
12. Oklahoma City, Oklahoma: Plains Sunshine
Oklahoma City is not a desert city, but it still ranks high for sunshine among major U.S. cities.
CurrentResults lists Oklahoma City at 68 percent sunshine, about 3,089 hours of sun per year, and around 139 clear days. 1
The city’s sunshine comes from its Southern Plains setting. Open skies, continental weather patterns, and seasonal swings create a very different sun profile from California, Arizona, or Florida.
Oklahoma City also reminds us that sunshine is not only a desert story.
13. San Diego, California: Coastal Sun With a Twist
San Diego is sunny, but it has a coastal twist.
CurrentResults lists San Diego at 68 percent sunshine, about 3,055 hours of sun per year, and around 146 clear days. 1
Unlike inland desert cities, San Diego can be affected by marine layers and coastal cloud patterns. CurrentResults notes that San Diego can receive more sun in winter than in summer, which is the opposite of many inland cities. 1
That makes San Diego one of the most interesting sunny cities: bright, mild, coastal, and seasonally unusual.
14. Sunniest Major U.S. Cities by Annual Sunshine
For major U.S. cities, the following annual sunshine ranking is based on CurrentResults’ summary of percent sunshine, annual hours of sun, and clear days. 1
| Rank | City | % Sunshine | Hours of Sun | Clear Days |
|---|---|---|---|---|
| 1 | Phoenix, Arizona | 85% | 3,872 | 211 |
| 2 | Las Vegas, Nevada | 85% | 3,825 | 210 |
| 3 | Tucson, Arizona | 85% | — | 193 |
| 4 | Fresno, California | 79% | — | 194 |
| 5 | Sacramento, California | 78% | 3,608 | 188 |
| 6 | Los Angeles, California | 73% | — | 147 |
| 7 | Honolulu, Hawaii | 71% | — | 90 |
| 8 | Miami, Florida | 70% | 3,154 | 74 |
| 9 | Denver, Colorado | 69% | 3,107 | 115 |
| 10 | Oklahoma City, Oklahoma | 68% | 3,089 | 139 |
| 11 | San Diego, California | 68% | 3,055 | 146 |
The table also shows why Arizona and Nevada dominate the conversation. The top three major cities are all in the desert Southwest.
15. Why the Southwest Is So Sunny
The sunniest U.S. cities are concentrated in the Southwest because of dry air, subtropical high-pressure patterns, desert landscapes, and fewer cloudy days.
In simple terms, clouds need moisture and atmospheric conditions that support condensation. In much of the desert Southwest, the air is often dry and skies are frequently clear.
That is why Arizona, Nevada, inland California, and parts of the broader Southwest show up again and again in sunshine rankings.
But sunshine is only one part of climate comfort. A city can be sunny and extremely hot. It can be sunny and dry. It can be sunny and high-elevation. It can be sunny and tropical.
That is why the best city for sun lovers depends on whether you want desert heat, beach weather, mountain air, or mild coastal sunshine.
16. Sunshine vs UV: They Are Related, But Not Identical
Sunshine and UV exposure are connected, but they are not exactly the same thing.
The UV Index is a forecast of the expected intensity of ultraviolet radiation from the sun. EPA recommends using the UV Index to understand daily sun risk and taking protective steps when needed. 3
CDC notes that UV rays can affect skin year-round and recommends protection through shade, clothing, and sunscreen. 4
That matters because many sunny-city habits are ordinary: walking the dog, driving, eating lunch outside, watching kids play sports, waiting at an outdoor event, walking from a parking lot, or touring a city on foot.
A UV-rated umbrella can be part of that routine. It gives portable shade when there is no tree, awning, or covered walkway nearby.
For product recommendations, read our guide to the best umbrella for sun protection.
17. Best Breliio Umbrella Picks for Sunny Cities
In very sunny cities, the best umbrella is not only about rain. It should be easy to carry, comfortable in daily life, and useful when shade is limited.
- For daily carry: choose a lightweight or compact umbrella that fits your bag.
- For rain and sun: choose a model with UPF protection and a water-repellent canopy.
- For commuters: choose something easy to open, close, store, and carry.
- For cars: consider reverse-fold designs that keep the wet side tucked inward after rain.
Breliio designs umbrellas for real weather, which often means both sun and rain. Our models are built around everyday protection, modern carry, UPF protection, water-repellent canopies, and a cleaner aesthetic than the average convenience-store umbrella.
For more reading, see our guides on umbrella UV protection, UV exposure and skin aging, and sun umbrella recommendations.
18. Final Ranking Summary
If we include smaller cities, the sunniest U.S. city conversation starts with:
- Yuma, Arizona: more than 4,000 sunshine hours annually and about 90 percent sunshine.
If we focus on major U.S. cities, the top sunshine leaders are:
- Phoenix, Arizona: 85 percent sunshine and about 3,872 hours of sun.
- Las Vegas, Nevada: 85 percent sunshine and about 3,825 hours of sun.
- Tucson, Arizona: 85 percent sunshine and about 193 clear days.
- Fresno, California: 79 percent sunshine and about 194 clear days.
- Sacramento, California: 78 percent sunshine and about 3,608 hours of sun.
The simple conclusion:
America’s sunniest cities are mostly desert, southwestern, or climate-shielded places where clear skies are part of daily life.
Sunshine can be beautiful. It can also be intense.
So enjoy the blue skies — but do not forget the shade.
Click to Reveal: Guess the Cloudiest Major U.S. City
Before opening the answer, take a guess.
Is it Seattle? Portland? Buffalo? Pittsburgh?
Click to reveal the cloudiest major U.S. city
By CurrentResults’ major-city cloudiness rankings, Seattle, Washington is one of the least sunny major U.S. cities, with only about 47 percent sunshine and around 58 clear days annually. 5
This is the opposite of the desert Southwest. In Seattle, frequent clouds and light precipitation shape the city’s weather identity. In Phoenix, Las Vegas, Tucson, and Yuma, open sky and sunshine dominate.
References
- CurrentResults. “Sunniest US Cities.” CurrentResults. Provides major U.S. city sunshine rankings, including Phoenix, Las Vegas, Tucson, Fresno, Sacramento, Los Angeles, Honolulu, Miami, Denver, Oklahoma City, and San Diego.
- CurrentResults. “Sunniest Places and Countries in the World.” CurrentResults. Notes that Yuma, Arizona receives more than 4,000 sunshine hours per year and about 90 percent sunshine.
- U.S. Environmental Protection Agency. “UV Index Overview.” EPA. Explains the UV Index and recommends shade, sunscreen, and other sun-protection steps.
- Centers for Disease Control and Prevention. “Ultraviolet Radiation.” CDC. Provides guidance on protecting yourself from UV rays with shade, clothing, and sunscreen.
- CurrentResults. “Cloudiest US Cities.” CurrentResults. Provides context on least sunny and cloudiest major U.S. cities.
- NOAA National Centers for Environmental Information. “U.S. Climate Normals.” NOAA NCEI. Describes U.S. Climate Normals as 30-year climate averages for temperature, precipitation, and other variables.
