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Zoetermeer, Netherlands climate
Cfb Oceanic / temperate
Zoetermeer has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 73°F, while the coldest is January averaging around 34°F at night. Around 35 inches of precipitation falls each year, peaking in September (3.6 inches) and easing off in April (1.7 inches). At latitude 52°N, day length swings from 7.5 hours in midwinter to 16.5 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsZoetermeer climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 44 | 45 | 51 | 58 | 64 | 69 | 73 | 73 | 67 | 59 | 50 | 45 |
| Avg temp (°F) | 39 | 39 | 44 | 49 | 55 | 60 | 64 | 64 | 59 | 52 | 45 | 40 |
| Avg low (°F) | 34 | 34 | 37 | 41 | 46 | 52 | 56 | 56 | 51 | 46 | 40 | 35 |
| Precipitation (in) | 2.8 | 2.6 | 2.2 | 1.7 | 2.2 | 2.8 | 3.1 | 3.5 | 3.6 | 3.4 | 3.4 | 3.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 44 | 45 | 51 | 58 | 64 | 69 |
| Avg temp (°F) | 39 | 39 | 44 | 49 | 55 | 60 |
| Avg low (°F) | 34 | 34 | 37 | 41 | 46 | 52 |
| Precipitation (in) | 2.8 | 2.6 | 2.2 | 1.7 | 2.2 | 2.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 73 | 73 | 67 | 59 | 50 | 45 |
| Avg temp (°F) | 64 | 64 | 59 | 52 | 45 | 40 |
| Avg low (°F) | 56 | 56 | 51 | 46 | 40 | 35 |
| Precipitation (in) | 3.1 | 3.5 | 3.6 | 3.4 | 3.4 | 3.4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 15 | 14 | 12 | 12 | 13 | 14 | 14 | 15 | 16 | 18 | 18 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | 0.2 | 0.6 | 0.4 | 0.1 | — | — | — |
| Days with low ≤ 32°F (days) | 12 | 11 | 8 | 3 | 0.2 | — | — | — | — | 1 | 5 | 11 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 15 | 14 | 12 | 12 | 13 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | 0.2 |
| Days with low ≤ 32°F (days) | 12 | 11 | 8 | 3 | 0.2 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 14 | 15 | 16 | 18 | 18 |
| Days with high ≥ 90°F (days) | 0.6 | 0.4 | 0.1 | — | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 1 | 5 | 11 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 71 | 69 | 66 | 68 | 69 | 66 | 66 | 65 | 69 | 72 | 72 |
| Clear days (≤ 30% cloud) | 2 | 4 | 4 | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 2 | 2 |
| Partly cloudy days (30–70%) | 10 | 7 | 9 | 10 | 9 | 9 | 11 | 11 | 10 | 10 | 9 | 10 |
| Cloudy days (≥ 70%) | 19 | 17 | 18 | 16 | 18 | 18 | 16 | 16 | 15 | 18 | 18 | 19 |
| Relative humidity (%) | 91 | 89 | 87 | 82 | 80 | 79 | 78 | 78 | 80 | 84 | 89 | 91 |
| Wind speed (mph) | 11.6 | 11.0 | 9.9 | 8.5 | 8.4 | 8.2 | 8.0 | 8.2 | 8.9 | 10.2 | 10.5 | 11.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 71 | 69 | 66 | 68 | 69 |
| Clear days (≤ 30% cloud) | 2 | 4 | 4 | 4 | 4 | 3 |
| Partly cloudy days (30–70%) | 10 | 7 | 9 | 10 | 9 | 9 |
| Cloudy days (≥ 70%) | 19 | 17 | 18 | 16 | 18 | 18 |
| Relative humidity (%) | 91 | 89 | 87 | 82 | 80 | 79 |
| Wind speed (mph) | 11.6 | 11.0 | 9.9 | 8.5 | 8.4 | 8.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 66 | 65 | 69 | 72 | 72 |
| Clear days (≤ 30% cloud) | 4 | 4 | 4 | 3 | 2 | 2 |
| Partly cloudy days (30–70%) | 11 | 11 | 10 | 10 | 9 | 10 |
| Cloudy days (≥ 70%) | 16 | 16 | 15 | 18 | 18 | 19 |
| Relative humidity (%) | 78 | 78 | 80 | 84 | 89 | 91 |
| Wind speed (mph) | 8.0 | 8.2 | 8.9 | 10.2 | 10.5 | 11.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Rotterdam, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.