Your holiday weather, at a glance

USA in August: where is it warmest?

In August, Phoenix is the warmest place with 40 °C by day, Seward, Alaska the coolest with 13 °C. 107 of 150 destinations have good holiday weather.

All destinations in August, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

Place	Score	Air	Sea	Sun	Rain days
Phoenix	50	40°	–	10 h	4
Palm Springs, California	50	40°	–	11 h	2
Scottsdale, Arizona	49	39°	–	10 h	4
Las Vegas	50	38°	–	11 h	3
Tucson	47	36°	–	9 h	5
Moab, Utah	50	35°	–	10 h	3
Fort Worth	47	35°	–	9 h	5
Dallas	46	35°	–	9 h	5
San Antonio	45	35°	–	9 h	6
Austin	44	35°	–	9 h	6
Sacramento	59	34°	–	12 h	0
El Paso	53	34°	–	9 h	6
Oklahoma City	52	34°	–	9 h	7
Mariposa (Yosemite)	59	33°	–	12 h	0
Page (Lake Powell)	59	33°	–	9 h	3
Tulsa	55	33°	–	9 h	7
Houston	34	33°	–	8 h	14
Reno	72	32°	–	11 h	2
Albuquerque	69	32°	–	9 h	5
Boise	68	32°	–	11 h	1
Salt Lake City	67	32°	–	10 h	4
Memphis	57	32°	–	8 h	8
Corpus Christi	56	32°	29°	9 h	9
Sedona, Arizona	56	32°	–	9 h	8
Baton Rouge	34	32°	–	7 h	16
South Padre Island, Texas	92	31°	29°	9 h	9
Galveston, Texas	79	31°	30°	8 h	15
Key Largo, Florida Keys	76	31°	30°	8 h	21
Boca Raton	74	31°	30°	7 h	25
Naples, Florida	74	31°	30°	7 h	22
Sarasota, Florida	74	31°	30°	7 h	23
Marco Island, Florida	74	31°	30°	7 h	24
West Palm Beach, Florida	74	31°	30°	7 h	26
Fort Myers Beach, Florida	73	31°	30°	7 h	25
Daytona Beach, Florida	73	31°	28°	7 h	23
Destin, Florida	72	31°	30°	7 h	20
Nashville	56	31°	–	7 h	11
Charlotte	52	31°	–	7 h	13
Fort Lauderdale	43	31°	30°	7 h	24
Savannah	42	31°	–	7 h	20
New Orleans	39	31°	–	7 h	17
Jacksonville	39	31°	–	7 h	21
Tampa	37	31°	30°	7 h	24
Orlando	36	31°	–	7 h	24
Mobile	35	31°	30°	7 h	19
Los Angeles	83	30°	20°	11 h	0
Miami Beach	76	30°	30°	8 h	22
St. Augustine	74	30°	28°	7 h	21
Clearwater Beach, Florida	74	30°	30°	7 h	20
Hilton Head Island	73	30°	29°	7 h	19
Charleston	72	30°	29°	7 h	19
St. Pete Beach, Florida	72	30°	30°	7 h	23
Panama City Beach, Florida	72	30°	30°	7 h	20
Louisville	67	30°	–	8 h	9
Kansas City	66	30°	–	8 h	9
St. Louis	65	30°	–	8 h	9
Washington, D.C.	63	30°	26°	7 h	10
Knoxville	60	30°	–	7 h	12
Richmond	59	30°	–	7 h	11
Greenville	55	30°	–	7 h	13
Raleigh	54	30°	–	7 h	13
Atlanta	52	30°	–	7 h	13
Miami	46	30°	30°	8 h	22
Lahaina, Maui	100	29°	27°	9 h	1
Kihei, Maui	98	29°	26°	9 h	3
Santa Monica	87	29°	20°	11 h	0
Spokane	85	29°	–	11 h	2
Key West	81	29°	30°	8 h	16
Marathon, Florida Keys	81	29°	30°	8 h	16
Denver	80	29°	–	9 h	8
Omaha	76	29°	–	8 h	9
Myrtle Beach, South Carolina	72	29°	28°	7 h	19
Cincinnati	71	29°	–	8 h	10
Leavenworth, Washington	69	29°	–	11 h	2
Philadelphia	67	29°	25°	7 h	11
Gatlinburg (Smoky Mountains)	64	29°	–	7 h	10
Honolulu, Hawaii	96	28°	27°	9 h	7
Portland, Oregon	96	28°	–	10 h	3
Bend, Oregon	96	28°	–	10 h	4
Long Beach	91	28°	21°	11 h	0
Napa Valley	91	28°	–	11 h	0
Malibu	86	28°	20°	11 h	0
Ocean City, Maryland	85	28°	24°	8 h	12
Lihue, Kauai	85	28°	27°	9 h	14
Nags Head, Outer Banks	83	28°	26°	8 h	12
Virginia Beach	82	28°	26°	7 h	13
Santa Barbara	80	28°	18°	12 h	0
Des Moines	79	28°	–	8 h	9
Columbus	78	28°	–	7 h	10
Indianapolis	77	28°	–	8 h	9
New York	74	28°	23°	7 h	11
Pittsburgh	72	28°	–	7 h	12
Baltimore	71	28°	26°	7 h	11
San Jose, California	98	27°	–	10 h	0
Whitefish (Glacier National Park)	87	27°	–	10 h	5
Atlantic City	85	27°	24°	7 h	11
Kapaa, Kauai	85	27°	26°	9 h	14
Albany	80	27°	–	7 h	10
Providence	79	27°	22°	7 h	10
Santa Fe	79	27°	–	8 h	7
Flagstaff (Grand Canyon)	71	27°	–	8 h	16
Asheville, North Carolina	68	27°	–	7 h	14
South Lake Tahoe	90	26°	–	10 h	3
Jackson Hole, Wyoming	90	26°	–	9 h	6
Sun Valley (Ketchum), Idaho	90	26°	–	10 h	3
San Diego	89	26°	21°	11 h	0
Laguna Beach, California	88	26°	21°	11 h	0
Steamboat Springs, Colorado	88	26°	–	9 h	6
Cape May, New Jersey	86	26°	24°	8 h	11
Park City, Utah	85	26°	–	10 h	7
Detroit	84	26°	–	8 h	9
Minneapolis	84	26°	–	8 h	10
New Haven	84	26°	23°	8 h	10
Boston	82	26°	19°	7 h	9
Chicago	82	26°	–	8 h	11
Cleveland	79	26°	–	8 h	12
Rochester	78	26°	–	8 h	12
Hilo, Hawaii	68	26°	26°	8 h	23
Lanai	100	25°	27°	10 h	1
Buffalo	79	25°	–	8 h	11
Kailua-Kona, Hawaii	78	25°	27°	8 h	29
Salem	67	25°	19°	7 h	9
Mammoth Lakes, California	100	24°	–	10 h	3
West Yellowstone	97	24°	–	9 h	6
Seattle	96	24°	12°	9 h	5
Aspen, Colorado	94	24°	–	9 h	6
Vail, Colorado	88	24°	–	8 h	9
Milwaukee	82	24°	–	8 h	10
Stowe, Vermont	75	24°	–	7 h	13
Montauk, Long Island	73	24°	21°	8 h	8
Provincetown, Cape Cod	67	24°	20°	8 h	9
Kennebunkport, Maine	63	24°	18°	8 h	9
Portland, Maine	58	24°	18°	8 h	9
Hyannis, Cape Cod	66	23°	21°	8 h	9
Edgartown, Martha's Vineyard	64	23°	21°	8 h	9
San Francisco	100	22°	15°	10 h	0
Oakland	100	22°	15°	10 h	0
Telluride, Colorado	82	22°	–	8 h	11
Lake Placid, New York	70	22°	–	7 h	15
Monterey, California	56	22°	15°	10 h	0
Nantucket	52	21°	20°	8 h	8
Bar Harbor (Acadia)	84	20°	13°	7 h	8
Breckenridge, Colorado	81	20°	–	8 h	11
Cannon Beach, Oregon	35	19°	15°	8 h	4
Carmel-by-the-Sea	40	18°	15°	10 h	0
Anchorage	61	17°	14°	6 h	14
Ketchikan, Alaska	60	17°	14°	6 h	17
Juneau	6	17°	–	5 h	19
Sitka	5	16°	13°	4 h	18
Seward, Alaska	39	13°	14°	5 h	17

USA in August: quick answers

USA in August: where is it warmest?

The warmest places in August are Phoenix (40 °C), Palm Springs, California (40 °C) and Scottsdale, Arizona (39 °C).

USA in August: where is the sea warmest?

The sea is warmest at Galveston, Texas (30 °C), Key Largo, Florida Keys (30 °C) and Boca Raton (30 °C).

USA in August: where is the weather best?

The best holiday weather in August – warm, sunny and dry – is in Lahaina, Maui, Lanai and Mammoth Lakes, California.

USA month by month

USA: weather & best time to visit

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences