Annual mean 11°C · wettest around January · prevailing wind SW
Warmest
22.7 °C
Coldest
3.8 °C
Wettest
47%
Windiest
5.6 m/s
Prevailing
SW
4.5 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Arnhem over the whole year is 11°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 3°C. Arnhem has no sharply defined rainy season: the chance of rain on a given day runs from 22% in May, the driest month, to 42% in January, the wettest. Winds in Arnhem are highest in February, averaging 4.4 m/s (16 km/h), and lightest in September, at 2.9 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in Arnhem come in August, when the sky is typically 64% covered; December is the cloudiest month, at 85%.
Month by month Arnhem climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
5°C
3°C
0°C
42%
83%
4.1 m/s
0
0
7
February
7°C
3°C
2°C
40%
74%
4.4 m/s
1
0
17
March
10°C
4°C
5°C
34%
68%
3.9 m/s
3
0
34
April
13°C
6°C
9°C
25%
66%
3.6 m/s
14
0
59
May
18°C
11°C
14°C
22%
64%
3.3 m/s
47
3
76
June
21°C
15°C
19°C
22%
64%
3.3 m/s
72
16
67
July
22°C
16°C
20°C
23%
68%
3.0 m/s
75
15
65
August
22°C
15°C
21°C
23%
64%
3.0 m/s
75
19
62
September
19°C
12°C
17°C
25%
66%
2.9 m/s
62
8
75
October
14°C
10°C
11°C
31%
78%
3.5 m/s
21
0
74
November
9°C
6°C
5°C
34%
78%
3.6 m/s
1
0
37
December
6°C
4°C
2°C
42%
85%
4.1 m/s
0
0
14
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Arnhem weather by season
Year round, Arnhem has days of about 5°C at their warmest in January, its coolest month, and 22°C in August, its warmest; the coolest hours of the day run from 3°C to 16°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around January and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Arnhem weather in winterDecember to February
High 6°CLow 4°CRain 41%
Winter in Arnhem has typical daily highs of about 6°C and lows of about 4°C, with a 41% chance of rain on a given day.
Arnhem weather in springMarch to May
High 13°CLow 7°CRain 27%
Spring in Arnhem has typical daily highs of about 13°C and lows of about 7°C, with a 27% chance of rain on a given day.
Arnhem weather in summerJune to August
High 22°CLow 15°CRain 23%
Summer in Arnhem has typical daily highs of about 22°C and lows of about 15°C, with a 23% chance of rain on a given day.
Arnhem weather in autumnSeptember to November
High 14°CLow 9°CRain 30%
Autumn in Arnhem has typical daily highs of about 14°C and lows of about 9°C, with a 30% chance of rain on a given day.
When is the rainy season in Arnhem?
Arnhem has no sharply defined rainy season: the chance of rain on a given day runs from 22% in May, the driest month, to 42% in January, the wettest.
What time of year is Arnhem windiest?
Winds in Arnhem are highest in February, averaging 4.4 m/s (16 km/h), and lightest in September, at 2.9 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in Arnhem year round?
The average temperature in Arnhem over the whole year is 11°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 3°C.