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Zwolle, Netherlands climate
Cfb Oceanic / temperate
Zwolle has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 23°C, while the coldest is January averaging around 1°C at night. Around 820 mm of precipitation falls each year, peaking in August (92 mm) and easing off in April (42 mm). At latitude 52°N, day length swings from 7.4 hours in midwinter to 16.6 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 countsZwolle climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 7 | 10 | 14 | 18 | 20 | 23 | 22 | 19 | 14 | 10 | 6 |
| Avg temp (°C) | 3 | 3 | 6 | 9 | 13 | 16 | 18 | 17 | 15 | 11 | 7 | 4 |
| Avg low (°C) | 1 | 0 | 2 | 4 | 8 | 11 | 13 | 12 | 10 | 7 | 4 | 1 |
| Precipitation (mm) | 68 | 57 | 55 | 42 | 57 | 67 | 91 | 92 | 73 | 75 | 69 | 74 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 6 | 7 | 10 | 14 | 18 | 20 |
| Avg temp (°C) | 3 | 3 | 6 | 9 | 13 | 16 |
| Avg low (°C) | 1 | 0 | 2 | 4 | 8 | 11 |
| Precipitation (mm) | 68 | 57 | 55 | 42 | 57 | 67 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 22 | 19 | 14 | 10 | 6 |
| Avg temp (°C) | 18 | 17 | 15 | 11 | 7 | 4 |
| Avg low (°C) | 13 | 12 | 10 | 7 | 4 | 1 |
| Precipitation (mm) | 91 | 92 | 73 | 75 | 69 | 74 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 14 | 13 | 12 | 12 | 13 | 14 | 14 | 14 | 16 | 16 | 18 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.0 | 0.2 | 0.7 | 0.6 | 0.0 | — | — | — |
| Days with low ≤ 0°C (days) | 13 | 13 | 10 | 4 | 0.1 | — | — | — | — | 2 | 5 | 12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 14 | 13 | 12 | 12 | 13 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.0 | 0.2 |
| Days with low ≤ 0°C (days) | 13 | 13 | 10 | 4 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 14 | 14 | 16 | 16 | 18 |
| Days with high ≥ 32°C (days) | 0.7 | 0.6 | 0.0 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 2 | 5 | 12 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 74 | 72 | 68 | 68 | 72 | 69 | 69 | 70 | 74 | 77 | 77 |
| Clear days (≤ 30% cloud) | 2 | 2 | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 2 | 1 | 1 |
| Partly cloudy days (30–70%) | 8 | 8 | 8 | 10 | 10 | 8 | 10 | 11 | 9 | 8 | 8 | 8 |
| Cloudy days (≥ 70%) | 21 | 19 | 20 | 17 | 17 | 19 | 18 | 17 | 18 | 21 | 21 | 22 |
| Relative humidity (%) | 93 | 90 | 86 | 81 | 78 | 78 | 79 | 80 | 83 | 87 | 92 | 93 |
| Wind speed (km/h) | 15.3 | 14.7 | 13.9 | 11.9 | 11.8 | 11.3 | 10.8 | 10.6 | 11.3 | 12.9 | 13.0 | 14.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 74 | 72 | 68 | 68 | 72 |
| Clear days (≤ 30% cloud) | 2 | 2 | 3 | 3 | 4 | 3 |
| Partly cloudy days (30–70%) | 8 | 8 | 8 | 10 | 10 | 8 |
| Cloudy days (≥ 70%) | 21 | 19 | 20 | 17 | 17 | 19 |
| Relative humidity (%) | 93 | 90 | 86 | 81 | 78 | 78 |
| Wind speed (km/h) | 15.3 | 14.7 | 13.9 | 11.9 | 11.8 | 11.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 69 | 70 | 74 | 77 | 77 |
| Clear days (≤ 30% cloud) | 3 | 3 | 3 | 2 | 1 | 1 |
| Partly cloudy days (30–70%) | 10 | 11 | 9 | 8 | 8 | 8 |
| Cloudy days (≥ 70%) | 18 | 17 | 18 | 21 | 21 | 22 |
| Relative humidity (%) | 79 | 80 | 83 | 87 | 92 | 93 |
| Wind speed (km/h) | 10.8 | 10.6 | 11.3 | 12.9 | 13.0 | 14.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Lelystad, a weather station, about 39 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.