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Castletown,
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January
Average Temperature
High
9°
Feels 5
Low
7°
Feels 2
Average Precipitation
16 Days
Rain amount
87.8mm
Snow amount
0cm
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
6°
10
7°
11
11°
12
10°
13
9°
14
7°
15
7°
16
7°
17
7°
18
9°
19
8°
20
7°
21
8°
22
9°
23
10°
24
25
26
27
28
29
30
31
Forecast
Friday, January 9, 2026
Day
6°
Feels 3
Wind
24 km/h N
Gust
36 km/h
Humidity
76%
P.O.P
90%
Rain
~1 mm
Night
3°
Feels 0
Wind
11 km/h NE
Gust
17 km/h
Humidity
88%
P.O.P
30%
Historical Averages
Jan 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.