World Resorts USA Bellingham Weather

Bellingham weather in September

Weather in Bellingham: September

Average day temperature: 67.7°F
Average night temperature: 53.6°F
Sea water temperature: 58.4°F
Number of sunny days: 12 days
Day length: 11.7 - 13.4 hours
Number of rainy days: 3 days
Precipitation totals: 1.3 in.

Air temperature in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
12
24
36
48
60
72
84
96
Day temperature   
Night temperature

The highest day temperature during September of 2024 was 73°F. At the same time the lowest night temperature was 45°F. Day and night temperature averages during September were 62.0°F and 54.4°F.

Sea water temperature in Bellingham in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
50
53
56
59
62
65
68

The average sea water temperature in September of 2024 was 57.8°F. The highest and lowest sea temperatures during the month were 60.4°F and 54.7°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
40%
27%
33%

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.6
1.1
1.7
2.2
2.8
3.3
3.9
4.4
2.4
3.2
2.1
1.1
1.4
1.7
1.9
2.2
2.9
2.4
3.2
2.1
1.3
1.1
1.4
1.7
1.9
2.2
2.9

Precipitation total value in Bellingham in September is 1.3 in. Other months of the year show relatively similar values.

Wind speed in September, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.8
1.6
2.4
3.2
4.0
4.8
5.6
6.4
4.7
4.2
3.6
3.6
3.8
3.9
4.0
4.0
3.9
4.5
4.4
4.7
4.2
3.6
3.4
3.6
3.8
3.9
4.0
4.0
3.9
4.5
4.4

The average wind speed value in September is 3.4 mph It makes September lest windy month of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.1
4.2
6.3
8.5
10.6
12.7
14.8
2.4
2.9
5.1
10.0
12.3
8.9
6.8
4.9
3.8
2.6
2.7
2.4
2.9
5.1
7.2
10.0
12.3
8.9
6.8
4.9
3.8
2.6
2.7

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 September is: 7.2.

Best time for vacation in Bellingham

Sunniest months:
July 22 days
August 20 days
September 12 days
Warmest months:
August 73.2 °F
July 72.7 °F
September 67.7 °F
Warmest sea temp:
July 62.3 °F
August 62.2 °F
September 58.4 °F
Coldest months:
December 40.6 °F
January 41.2 °F
February 41.9 °F
Rainiest months:
November 7 days
January 6 days
March 5 days
Windiest months:
December 4.7 mph
February 4.5 mph
January 4.4 mph

Bellingham on a weather map

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Name
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24 Hours Forecast
Bellingham
Local time: 14:07
February 17, monday
1500
46°F
W
1 mph
1800
45°F
N
1 mph
2100
43°F
W
2 mph
February 18, tuesday
0000
43°F
W
2 mph
0300
41°F
W
2 mph
0600
41°F
W
3 mph
0900
41°F
W
3 mph
1200
45°F
W
1 mph
Units of measurement: °C / °F