Annual mean 11°C · wettest around December · prevailing wind SW
Warmest
22.0 °C
Coldest
5.2 °C
Wettest
63%
Windiest
7.6 m/s
Prevailing
SW
6.4 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 Hillegom over the whole year is 11°C. August is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 4°C. The rainy (wet) season in Hillegom runs from October to March, peaking in December with a 59% chance of rain on a given day. The dry season is April to September; May is the driest month, at 31%. Winds in Hillegom are highest in February, averaging 6.8 m/s (24 km/h), and lightest in August, at 5.1 m/s (18 km/h). The prevailing wind is from the SW. The clearest skies in Hillegom come in August, when the sky is typically 41% covered; December is the cloudiest month, at 70%.
Month by month Hillegom 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
55%
69%
6.7 m/s
0
0
6
February
7°C
4°C
1°C
52%
59%
6.8 m/s
0
0
13
March
9°C
5°C
3°C
49%
51%
5.9 m/s
2
0
26
April
12°C
7°C
7°C
40%
44%
5.5 m/s
10
0
52
May
16°C
11°C
13°C
31%
43%
5.2 m/s
36
2
75
June
20°C
15°C
17°C
31%
43%
5.2 m/s
65
11
73
July
21°C
16°C
18°C
32%
44%
5.2 m/s
71
11
71
August
21°C
17°C
19°C
34%
41%
5.1 m/s
72
15
68
September
19°C
14°C
16°C
41%
45%
5.1 m/s
59
7
75
October
15°C
11°C
11°C
48%
55%
6.1 m/s
18
0
70
November
10°C
7°C
5°C
58%
61%
6.2 m/s
1
0
34
December
7°C
5°C
2°C
59%
70%
6.7 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 Hillegom weather by season
Year round, Hillegom has days of about 6°C at their warmest in January, its coolest month, and 21°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 11°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.
Hillegom weather in winterDecember to February
High 7°CLow 5°CRain 56%
Winter in Hillegom has typical daily highs of about 7°C and lows of about 5°C, with a 56% chance of rain on a given day.
Hillegom weather in springMarch to May
High 13°CLow 8°CRain 40%
Spring in Hillegom has typical daily highs of about 13°C and lows of about 8°C, with a 40% chance of rain on a given day.
Hillegom weather in summerJune to August
High 21°CLow 16°CRain 32%
Summer in Hillegom has typical daily highs of about 21°C and lows of about 16°C, with a 32% chance of rain on a given day.
Hillegom weather in autumnSeptember to November
High 14°CLow 11°CRain 49%
Autumn in Hillegom has typical daily highs of about 14°C and lows of about 11°C, with a 49% chance of rain on a given day.
When is the rainy season in Hillegom?
The rainy (wet) season in Hillegom runs from October to March, peaking in December with a 59% chance of rain on a given day. The dry season is April to September; May is the driest month, at 31%.
What time of year is Hillegom windiest?
Winds in Hillegom are highest in February, averaging 6.8 m/s (24 km/h), and lightest in August, at 5.1 m/s (18 km/h). The prevailing wind is from the SW.
What is the average temperature in Hillegom year round?
The average temperature in Hillegom over the whole year is 11°C. August is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 4°C.