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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Stewart Island, STL
Content continues below
August
Average Temperature
High
10°
Feels 8
Low
8°
Feels 4
Average Precipitation
17 Days
Rain amount
98.2mm
Snow amount
0cm
Content continues below
Daily Historical Averages
August 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
7°
16
9°
17
10°
18
11°
19
9°
20
10°
21
9°
22
10°
23
10°
24
6°
25
6°
26
10°
27
12°
28
10°
29
13°
30
31
Forecast
Saturday, August 15, 2026
Day
7°
Feels 5
Wind
17 km/h SW
Gust
25 km/h
Humidity
57%
P.O.P
40%
Rain
~1 mm
Night
1°
Feels 0
Wind
9 km/h SW
Gust
13 km/h
Humidity
90%
P.O.P
40%
Rain
<1 mm
Historical Averages
Aug 15
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.