19.09
sat
sat
Day
61°F
S 6 mph
Precip.
2%
2%
Night
46°F
NE 4 mph
Precip.
11%
11%
20.09
sun
sun
Day
61°F
N 11 mph
Precip.
13%
13%
Night
52°F
NE 3 mph
Precip.
60%
60%
21.09
mon
mon
Day
64°F
S 6 mph
Precip.
10%
10%
Night
48°F
SW 9 mph
Precip.
16%
16%
22.09
tue
tue
Day
55°F
SW 9 mph
Precip.
10%
10%
Night
45°F
SW 6 mph
Precip.
20%
20%
23.09
wed
wed
Day
61°F
W 9 mph
Precip.
7%
7%
Night
43°F
SW 5 mph
Precip.
22%
22%
24.09
thu
thu
Day
61°F
SW 10 mph
Precip.
12%
12%
Night
52°F
NW 6 mph
Precip.
15%
15%
25.09
fri
fri
Day
55°F
S 6 mph
Precip.
17%
17%
Night
50°F
S 4 mph
Precip.
19%
19%
sea water
temperature
temperature
| Brunswick |
monthly
weather
weather
| Brunswick |
current
weather
weather
| Brunswick |
14 days
forecast
forecast
| Brunswick |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 62.2°F. The highest and lowest sea temperatures during the month were 64.0°F and 59.5°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 56.3°F. The highest and lowest sea temperatures during the month were 62.2°F and 52.5°F.
Air temperature in Brunswick, °F
Precipitation total in Brunswick, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Brunswick
Brunswick on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Brunswick
Local time: 05:21
September 19, saturday
0600
43°F
SE
4 mph
4 mph
0900
52°F
S
6 mph
6 mph
1200
61°F
S
6 mph
6 mph
1500
64°F
S
5 mph
5 mph
1800
55°F
N
8 mph
8 mph
2100
48°F
NE
4 mph
4 mph
September 20, sunday
0000
46°F
NE
4 mph
4 mph
0300
45°F
NE
3 mph
3 mph
