Annual mean 12°C · wettest around December · prevailing wind SW
Warmest
21.9 °C
Coldest
5.2 °C
Wettest
59%
Windiest
7.5 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 Katwijk over the whole year is 12°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 Katwijk runs from October to March, peaking in December with a 57% chance of rain on a given day. The dry season is April to September; May is the driest month, at 29%. Winds in Katwijk are highest in February, averaging 6.8 m/s (24 km/h), and lightest in May, at 5.1 m/s (18 km/h). The prevailing wind is from the SW. The clearest skies in Katwijk come in August, when the sky is typically 36% covered; December is the cloudiest month, at 68%.
Month by month Katwijk 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%
6.6 m/s
0
0
6
February
7°C
4°C
1°C
49%
56%
6.8 m/s
0
0
13
March
9°C
5°C
3°C
45%
47%
5.9 m/s
2
0
26
April
12°C
8°C
7°C
37%
38%
5.5 m/s
10
0
51
May
16°C
11°C
12°C
29%
38%
5.1 m/s
34
2
73
June
20°C
15°C
17°C
29%
37%
5.2 m/s
62
10
73
July
21°C
16°C
18°C
30%
39%
5.1 m/s
70
10
71
August
21°C
17°C
19°C
32%
36%
5.1 m/s
71
15
67
September
19°C
14°C
16°C
38%
40%
5.1 m/s
57
7
74
October
15°C
11°C
11°C
46%
51%
6.0 m/s
18
0
69
November
10°C
7°C
5°C
55%
58%
6.2 m/s
1
0
33
December
7°C
6°C
2°C
57%
68%
6.6 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 Katwijk weather by season
Year round, Katwijk 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 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.
Katwijk weather in winterDecember to February
High 7°CLow 5°CRain 53%
Winter in Katwijk has typical daily highs of about 7°C and lows of about 5°C, with a 53% chance of rain on a given day.
Katwijk weather in springMarch to May
High 13°CLow 8°CRain 37%
Spring in Katwijk has typical daily highs of about 13°C and lows of about 8°C, with a 37% chance of rain on a given day.
Katwijk weather in summerJune to August
High 21°CLow 16°CRain 30%
Summer in Katwijk has typical daily highs of about 21°C and lows of about 16°C, with a 30% chance of rain on a given day.
Katwijk weather in autumnSeptember to November
High 14°CLow 11°CRain 46%
Autumn in Katwijk has typical daily highs of about 14°C and lows of about 11°C, with a 46% chance of rain on a given day.
When is the rainy season in Katwijk?
The rainy (wet) season in Katwijk runs from October to March, peaking in December with a 57% 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 Katwijk windiest?
Winds in Katwijk are highest in February, averaging 6.8 m/s (24 km/h), and lightest in May, at 5.1 m/s (18 km/h). The prevailing wind is from the SW.
What is the average temperature in Katwijk year round?
The average temperature in Katwijk over the whole year is 12°C. August is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 4°C.