Measurements:
°C
°F
Bellevue
54°F
W 2 mph
Feels like: 54°F
Precip: 30%
World Resorts USA Bellevue Weather

7 Day Weather Forecast

09.15
tue
DAY
60°F
SW 5 mph
precip
16%
NIGHT
56°F
S 4 mph
precip
11%
09.16
wed
DAY
72°F
S 6 mph
precip
1%
NIGHT
60°F
S 3 mph
precip
6%
09.17
thu
DAY
74°F
S 4 mph
precip
1%
NIGHT
60°F
N 5 mph
precip
5%
09.18
fri
DAY
66°F
NE 6 mph
precip
4%
NIGHT
60°F
N 2 mph
precip
8%
09.19
sat
DAY
68°F
SE 2 mph
precip
12%
NIGHT
56°F
SW 4 mph
precip
7%
09.20
sun
DAY
68°F
NW 6 mph
precip
4%
NIGHT
58°F
SW 3 mph
precip
7%
09.21
mon
DAY
72°F
NE 2 mph
precip
1%
NIGHT
60°F
SW 8 mph
precip
17%

Bellevue Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Bellevue was 14.2°F. The maximum and minimum values were 13.7°F and 14.8°F respectively.

Bellevue on the Weather Map

Best Time to Visit Bellevue
The most sunny months:
July 20 days
August 18 days
September 14 days
The most warm months:
July 79.6 °F
August 79.3 °F
September 73.2 °F
Warmest sea temperature:
August 59.2 °F
July 58.8 °F
September 57.6 °F
The most cold months:
December 43.1 °F
January 43.4 °F
February 44.2 °F
The most rainy months:
November 6 days
January 5 days
December 3 days
The most windy months:
December 5 mph
November 5 mph
February 4 mph