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Precipitation
Temperature
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Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
St Marys, Isles of Scilly, UKK
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May
Average Temperature
High
13°
Feels 11
Low
11°
Feels 9
Average Precipitation
11 Days
Rain amount
53.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
15°
20
15°
21
15°
22
15°
23
15°
24
16°
25
16°
26
17°
27
17°
28
16°
29
16°
30
16°
31
15°
Forecast
Tuesday, May 19, 2026
Day
15°
Feels 12
Wind
47 km/h SW
Gust
71 km/h
Humidity
84%
P.O.P
40%
Rain
<1 mm
Night
12°
Feels 9
Wind
35 km/h W
Gust
52 km/h
Humidity
93%
P.O.P
40%
Rain
<1 mm
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.