Measurements:
°C
°F
Seaside
76°F
SE 8 mph
Feels like: 80°F
Precip: 6%
World Resorts USA Seaside Weather

7 Day Weather Forecast

08.05
wed
DAY
76°F
SE 8 mph
precip
6%
NIGHT
56°F
S 5 mph
precip
15%
08.06
thu
DAY
70°F
SE 7 mph
precip
5%
NIGHT
56°F
S 4 mph
precip
22%
08.07
fri
DAY
68°F
SE 7 mph
precip
5%
NIGHT
56°F
S 5 mph
precip
21%
08.08
sat
DAY
68°F
SE 8 mph
precip
6%
NIGHT
56°F
S 4 mph
precip
18%
08.09
sun
DAY
68°F
SE 9 mph
precip
8%
NIGHT
56°F
NE 6 mph
precip
16%
08.10
mon
DAY
66°F
S 9 mph
precip
7%
NIGHT
62°F
S 8 mph
precip
30%
08.11
tue
DAY
66°F
SE 8 mph
precip
15%
NIGHT
60°F
S 7 mph
precip
20%

Seaside Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Seaside was 14.1°F. The maximum and minimum values were 12.8°F and 15.6°F respectively.

Seaside on the Weather Map

Best Time to Visit Seaside
The most sunny months:
August 13 days
September 12 days
October 11 days
The most warm months:
August 66.5 °F
July 64.6 °F
September 64.2 °F
Warmest sea temperature:
August 58.2 °F
July 56.6 °F
September 56.4 °F
The most cold months:
February 45.7 °F
January 47.0 °F
December 47.1 °F
The most rainy months:
January 8 days
November 6 days
December 5 days
The most windy months:
December 10 mph
January 9 mph
November 9 mph