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Saint Helier Weather Averages

Climate averages for Saint Helier based on 10 years of historical data.

Annual avg temp
12.6°C
Annual avg high
13.9°C
Annual avg low
11.2°C
Record high
29°C
Record low
-2°C
Annual rainfall
998 mm
Rainy days
148
Sunshine
3.0h/day
Luftfuktighet
79%

Average Saint Helier temperatures by month

Avg high

10°
J
F
10°
M
12°
A
14°
M
17°
J
19°
J
19°
A
18°
S
16°
O
13°
N
11°
D

Avg low

J
F
M
A
11°
M
14°
J
16°
J
16°
A
15°
S
13°
O
10°
N
D

Average rainfall in Saint Helier by month

Rainfall (mm)

110
J
79
F
78
M
41
A
51
M
60
J
46
J
74
A
80
S
119
O
139
N
121
D

Sunshine hours in Saint Helier by month

Sunshine (h/day)

1
J
2
F
2
M
4
A
4
M
5
J
5
J
4
A
3
S
2
O
1
N
1
D

Humidity in Saint Helier by month

Average humidity

76%
J
78%
F
79%
M
78%
A
82%
M
83%
J
81%
J
80%
A
77%
S
77%
O
76%
N
78%
D

Month-by-month averages

Month Avg High Avg Low Rainfall Sunshine
Vädret i januari 10°C 7°C 110 mm 1.3h
Vädret i februari 9°C 7°C 79 mm 1.9h
Vädret i mars 10°C 8°C 78 mm 2.4h
Vädret i april 12°C 9°C 41 mm 4.1h
Vädret i maj 14°C 11°C 51 mm 4.3h
Vädret i juni 17°C 14°C 60 mm 5.0h
Vädret i juli 19°C 16°C 46 mm 4.8h
Vädret i augusti 19°C 16°C 74 mm 3.9h
Vädret i september 18°C 15°C 80 mm 3.3h
Vädret i oktober 16°C 13°C 119 mm 2.4h
Vädret i november 13°C 10°C 139 mm 1.3h
Vädret i december 11°C 9°C 121 mm 1.3h