Weather in Rehoboth Beach: May
 |
Average day temperature: | 65.9°F |
| Average night temperature: | 57.8°F | |
 |
Sea water temperature: | 58.7°F |
 |
Number of sunny days: | 11 days |
| Day length: | 13.8 - 14.7 hours | |
 |
Number of rainy days: | 1 day |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| Rehoboth Beach |
sea water
temperature
temperature
| Rehoboth Beach |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 81°F. At the same time the lowest night temperature was 48°F. Daily and nightly averages during May were 64.2°F and 57.8°F.
Sea water temperature in Rehoboth Beach in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 58.5°F. The highest and lowest sea temperatures during the month were 63.5°F and 54.3°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Rehoboth Beach in May is 0.9 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 10.8 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.7.
Best time for vacation in Rehoboth Beach
Rehoboth Beach on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Rehoboth Beach
Local time: 23:17
June 06, saturday
0000
68°F
NE
9 mph
9 mph
0300
68°F
NE
11 mph
11 mph
0600
66°F
NE
11 mph
11 mph
0900
75°F
NE
10 mph
10 mph
1200
79°F
NE
7 mph
7 mph
1500
82°F
NE
9 mph
9 mph
1800
81°F
NE
12 mph
12 mph
2100
75°F
N
14 mph
14 mph
