World Resorts USA Dewey Beach Weather

Summer weather in Dewey Beach

Weather in Dewey Beach in Summer

June July August
Average day temperature:
Average day temperature: 74.3°F 81.4°F 79.5°F
Average night temperature:
Average night temperature: 67.2°F 74.2°F 73.3°F
Sea water temperature:
Sea water temperature: 67.0°F 75.0°F 74.7°F
Number of sunny days:
Number of sunny days: 13 days 11 days 9 days
Day length:
Day length: 14.7 - 14.9 h. 14.2 - 14.8 h. 13.1 - 14.1 h.
Number of rainy days:
Number of rainy days: 3 days 3 days 5 days
Precipitation totals:
Precipitation totals: 1.3 in. 2.0 in. 1.7 in.

Day & Night air temperature, °F

Sea water temperature, °F

Precipitation total, in.

Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

Best time for vacation in Dewey Beach

Sunniest months:
November 17 days
September 15 days
October 14 days
Warmest months:
July 81.4 °F
August 79.5 °F
September 74.4 °F
Warmest sea temp:
July 75.0 °F
August 74.7 °F
September 73.6 °F
Coldest months:
January 42.3 °F
February 44.2 °F
December 46.9 °F
Rainiest months:
August 5 days
March 4 days
July 3 days
Windiest months:
March 13.1 mph
January 12.2 mph
April 12.2 mph

Dewey Beach on a weather map

Dewey Beach
+55°F
SW 12 mph
Feels like: +54°F
Precip.: 0%
Places in USA:
Name
°F
+52°F
+61°F
+75°F
+73°F
+81°F
+61°F
+84°F
+59°F
+81°F
+63°F
+54°F
+81°F
+82°F
+77°F
+68°F
24 Hours Forecast
Dewey Beach
Local time: 00:32
May 19, sunday
0300
55°F
SW
12 mph
0600
57°F
SW
9 mph
0900
59°F
SW
9 mph
1200
61°F
SW
11 mph
1500
59°F
W
14 mph
1800
59°F
W
9 mph
2100
57°F
W
11 mph
May 20, monday
0000
55°F
SW
11 mph
Units of measurement: °C / °F