Annual mean 12°C · wettest around December · prevailing wind SW
Warmest
22.0 °C
Coldest
5.2 °C
Wettest
59%
Windiest
7.4 m/s
Prevailing
SW
6.3 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 Sassenheim over the whole year is 12°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 4°C. The rainy (wet) season in Sassenheim runs from October to March, peaking in December with a 56% chance of rain on a given day. The dry season is April to September; May is the driest month, at 29%. Winds in Sassenheim are highest in February, averaging 6.7 m/s (24 km/h), and lightest in May, at 5.0 m/s (18 km/h). The prevailing wind is from the SW. The clearest skies in Sassenheim come in August, when the sky is typically 38% covered; December is the cloudiest month, at 69%.
Month by month Sassenheim 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
6°C
4°C
0°C
52%
67%
6.5 m/s
0
0
6
February
7°C
4°C
1°C
49%
57%
6.7 m/s
0
0
14
March
9°C
5°C
4°C
45%
49%
5.8 m/s
2
0
27
April
12°C
7°C
7°C
37%
40%
5.3 m/s
10
0
53
May
16°C
11°C
13°C
29%
40%
5.0 m/s
37
2
75
June
20°C
15°C
17°C
29%
39%
5.1 m/s
65
11
73
July
21°C
16°C
19°C
30%
41%
5.1 m/s
72
11
71
August
22°C
17°C
19°C
32%
38%
5.0 m/s
73
16
67
September
19°C
14°C
16°C
39%
42%
5.0 m/s
59
7
75
October
15°C
11°C
11°C
46%
52%
5.9 m/s
19
0
71
November
10°C
7°C
5°C
54%
59%
6.0 m/s
1
0
34
December
7°C
5°C
2°C
56%
69%
6.5 m/s
0
0
13
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 Sassenheim weather by season
Year round, Sassenheim has days of about 6°C at their warmest in January, its coolest month, and 22°C in August, its warmest; the coolest hours of the day run from 4°C to 17°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around December 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.
Sassenheim weather in winterDecember to February
High 7°CLow 5°CRain 52%
Winter in Sassenheim has typical daily highs of about 7°C and lows of about 5°C, with a 52% chance of rain on a given day.
Sassenheim weather in springMarch to May
High 13°CLow 8°CRain 37%
Spring in Sassenheim has typical daily highs of about 13°C and lows of about 8°C, with a 37% chance of rain on a given day.
Sassenheim weather in summerJune to August
High 21°CLow 16°CRain 30%
Summer in Sassenheim has typical daily highs of about 21°C and lows of about 16°C, with a 30% chance of rain on a given day.
Sassenheim weather in autumnSeptember to November
High 15°CLow 11°CRain 46%
Autumn in Sassenheim has typical daily highs of about 15°C and lows of about 11°C, with a 46% chance of rain on a given day.
When is the rainy season in Sassenheim?
The rainy (wet) season in Sassenheim runs from October to March, peaking in December with a 56% chance of rain on a given day. The dry season is April to September; May is the driest month, at 29%.
What time of year is Sassenheim windiest?
Winds in Sassenheim are highest in February, averaging 6.7 m/s (24 km/h), and lightest in May, at 5.0 m/s (18 km/h). The prevailing wind is from the SW.
What is the average temperature in Sassenheim year round?
The average temperature in Sassenheim over the whole year is 12°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 4°C.