Best beach weather in the US in August

Ranked by the most beach days in August: highs 80-95°F, under 0.05 in of rain and afternoon wind under 15 mph (cities within 10 mi of a coast or Great Lake). First: Costa Mesa, CA (27 days), of 91 cities.

Best beach weather in the US in August
Rank	City	Beach days	High	Wet days
1	Costa Mesa, CA	27 days	85°F	0
2	Irvine, CA	27 days	85°F	0
3	Huntington Beach, CA	27 days	85°F	0
4	East Honolulu, HI	26 days	85°F	12
5	Cape May, NJ	22 days	84°F	9
6	Long Beach, CA	21 days	83°F	0
7	Dover, DE	21 days	85°F	8
8	Galveston, TX	21 days	92°F	9
9	Destin, FL	21 days	91°F	12
10	Nags Head, NC	21 days	84°F	8
11	Charleston, SC	20 days	86°F	12
12	Baltimore, MD	20 days	87°F	10
13	Gulfport, MS	20 days	90°F	13
14	Myrtle Beach, SC	20 days	87°F	11
15	North Charleston, SC	20 days	86°F	13
16	Solvang, CA	19 days	93°F	0
17	Wilmington, DE	19 days	85°F	9
18	Key West, FL	19 days	91°F	15
19	Hilton Head Island, SC	19 days	90°F	13
20	St. Simons Island, GA	19 days	90°F	13
21	Virginia Beach, VA	19 days	85°F	10
22	Daytona Beach, FL	18 days	90°F	15
23	Wilmington, NC	18 days	88°F	14
24	Chesapeake, VA	18 days	87°F	10
25	Palm Coast, FL	18 days	88°F	15

Which states lead

California (5 of the top 25), Florida (4 of the top 25), South Carolina (4 of the top 25), then 9 more states. The top 25 range from 27 days to 18 days; the median across all 91 cities is 15 days.

The other end: fewest beach days in August

Best beach weather through the year

Month	First place	Beach days
January	Honolulu, HI	15 days
February	Key Largo, FL	15 days
March	Key Largo, FL	17 days
April	Cape Coral, FL	22 days
May	Tampa, FL	25 days
June	East Honolulu, HI	24 days
July	East Honolulu, HI	25 days
August	Costa Mesa, CA	27 days
September	East Honolulu, HI	24 days
October	East Honolulu, HI	24 days
November	East Honolulu, HI	19 days
December	Key Largo, FL	17 days

91 cities with data for this measure. Folded suburbs share their lead city's values and are not listed separately. Methodology.