Measurements:
°C
°F
CURRENT WEATHER
23:04
Plymouth
56°F
W 11 mph
Feels like: 52°F
Precip: 23%
World Resorts United Kingdom Plymouth Weather

7 Day Weather Forecast

09.28
mon
DAY
62°F
W 4 mph
precip
12%
NIGHT
56°F
W 11 mph
precip
23%
09.29
tue
DAY
68°F
NW 17 mph
precip
25%
NIGHT
62°F
N 22 mph
precip
84%
09.30
wed
DAY
62°F
NE 19 mph
precip
44%
NIGHT
52°F
NE 7 mph
precip
40%
10.01
thu
DAY
62°F
E 11 mph
precip
12%
NIGHT
58°F
NE 14 mph
precip
40%
10.02
fri
DAY
64°F
NE 13 mph
precip
25%
NIGHT
50°F
SW 3 mph
precip
16%
10.03
sat
DAY
62°F
NE 5 mph
precip
10%
NIGHT
54°F
N 2 mph
precip
42%
10.04
sun
DAY
62°F
SE 13 mph
precip
26%
NIGHT
54°F
S 14 mph
precip
14%

Plymouth Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Plymouth was 17.6°F. The maximum and minimum values were 16.9°F and 18.6°F respectively.

Plymouth on the Weather Map

Best Time to Visit Plymouth
The most sunny months:
July 10 days
June 9 days
April 9 days
The most warm months:
July 68.1 °F
August 67.8 °F
September 64.2 °F
Warmest sea temperature:
August 63.3 °F
September 62.7 °F
July 62.2 °F
The most cold months:
January 46.7 °F
February 47.3 °F
December 49.5 °F
The most rainy months:
December 7 days
October 7 days
January 7 days
The most windy months:
December 16 mph
February 16 mph
January 16 mph
more details