Climate and monthly weather forecastZwolle, Netherlands
Climate and monthly weather forecast
The climate of Zwolle
Zwolle, a charming city located in the Province of Overijssel in the Netherlands, basks in a Maritime Temperate Climate, marked by warm summers and cool winters. The Koppen Climate Classification system classifies Zwolle’s meteorological setting as Cfb. This primarily means relative moderation in temperature fluctuations throughout the year, coupled with regular and substantial rainfall.Average high temperature varies from a low of 4.6°C (40.3°F) in January, gradually shifting to a peak of 22.3°C (72.1°F) in August. Those who favour mild temperatures would find comfort in the fact that even during the warmest months, the city seldom exceeds 22.3°C (72.1°F). The opposite months of May to September experience a fall in temperatures to the point of dipping below the freezing point, with a rock bottom of 0.9°C (33.6°F) in January.
Humidity levels in Zwolle remain relatively stable, oscillating around a yearly average of 81%. An analysis of the data shows that the city does lean towards a higher humidity percentage during the colder months, peaking at 89% in December. On the other hand, the lowest humidity of 75% is seen in April, signaling comparatively dry conditions.
The city experiences rainfall throughout the year, with no distinct dry period. The monthly precipitation varies from 10mm (0.39") in April to 25mm (0.98") in June. Interestingly, June has the highest number of rainfall days (12.8), while April averages the least (9.4). The city becomes a winter wonderland from January to March and in December as it receives snow, with the heaviest fall of 11mm (0.43") recorded in January.
The best time to visit Zwolle
June to August provides the most favorable conditions to visit Zwolle. During these months, visitors can enjoy average daylight of around 16 hours, ample sunshine, and a pleasant mean temperature of 21.3°C (70.3°F). This is also the period when the UV index is at its yearly high of 5, signifying pronounced solar intensity, compelling visitors to bring along sun protection gear.The worst time to visit Zwolle
The months of January and February are deemed less desirable for potential visitors. This assessment stems from the combination of low temperatures that average around 2.8°C (37°F), limited daylight hours (8.7 hours), and a significant amount of snowfall. Furthermore, the frequency of sunshine during these months dwindles to around 3.7 hours daily, reducing visibility to 9km (5.6mi).Spring weather in Zwolle
Spring in Zwolle, spanning from March to May, witnesses an upward curve in mean temperature from 9.8°C (49.6°F) to 17.1°C (62.8°F). Rainfall during this period fluctuates between 10mm (0.39") to 16mm (0.63"), spread across approximately 10 days in the month.Summer weather in Zwolle
The summer months of June through August in Zwolle offer a comfortable temperature range from 20°C (68°F) to 22.3°C (72.1°F). While rainfall remains relatively high, from 20mm (0.79") to 25mm (0.98"), the humidity levels are moderate, settling between 79% and 80%.Autumn weather in Zwolle
Autumn, from September to November, witnesses a gradual cooling trend as temperatures slide from 18.5°C (65.3°F) to 9°C (48.2°F). Rainfall varies from 13mm (0.51") to 15mm (0.59"), while the humidity levels spike from 83% to 87%.Winter weather in Zwolle
Winter in Zwolle, from December through February, is characterized by low temperatures ranging from 4.6°C (40.3°F) to 0.9°C (33.6°F). Snowfall is a common feature during this season, with January seeing the most accumulation of 11mm (0.43"). Light conditions are relatively low, with daylight hours around 8.3 and sunshine duration of 3.7 hours.Weather in January
In Zwolle, Netherlands, January brings the cold with an average high temperature of 4.6°C (40.3°F) and a low of 0.9°C (33.6°F). This month sees the most significant snowfall, receiving 11mm (0.43") over 2.7 days. January experiences relative humidity at 87% along with a wind speed of 18.2km/h (11.3mph). Weather in January »Weather in February
February maintains the winter season carrying forward the cold climate from January with slight differentiation in temperatures. February sees a marginal increase in the average high temperature and negligible decrease in the low. Weather in February »Weather in March
Spring begins in March, and with it comes milder temperatures and reduced snowfall. The weather in Zwolle, Netherlands transitions making March's highest temperature on average at 9.8°C (49.6°F) and the lowest at 2.8°C (37°F). Weather in March »Weather in April
April sees further improvements in the weather conditions. The average high temperature hikes to 14.5°C (58.1°F) and the low to 5.7°C (42.3°F), indicating the strengthening of the spring season. The arrival of April implies an absolute absence of snowfall. Weather in April »Weather in May
Moving towards summer, May brings slightly higher temperatures. The average high temperature now hits 17.1°C (62.8°F) and the lowest dips to 8.2°C (46.8°F). The skies start to brighten in May, with a significant increase in sunshine hours, amounting to 8.1 hours a day. Weather in May »Weather in June
June marks the commencement of summer on a vibrant note. With the temperatures peaking to an average high of 20°C (68°F) and a low of 11.3°C (52.3°F), summer proves its arrival. The daylight reaches its annual peak at 16.7 hours in Zwolle. Weather in June »Weather in July
July is the hottest month on the calendar in Zwolle, Netherlands, with the average high temperature climbing to 22°C (71.6°F) and the low to 13.2°C (55.8°F). Slightly more rainy days in July with rainfall recorded for around 13.9 days. Weather in July »Weather in August
August remains a warm month with the temperature marginally drifting to a high of 22.3°C (72.1°F) and a low of 13.5°C (56.3°F) from July. Rainfall witnesses a slight increase with 22mm (0.87") precipitation, making August noticeably wetter. Weather in August »Weather in September
The arrival of September decreases the temperature, and the average high falls to 18.5°C (65.3°F) while the average low goes to 10.9°C (51.6°F). A decrease in humidity by 77% implies drier weather in Zwolle, Netherlands. The data showcases a slight surge in UV index, hinting towards the persistent sunshine. Weather in September »Weather in October
October, a fall month, exhibits cooler temperatures, with a record high of 14.1°C (57.4°F) and a low of 7.8°C (46°F). The sunshine hours also shrink to about 4.8 hours per day, indicating a shift towards wintertime weather. Weather in October »Weather in November
As November rolls in, Zwolle experiences an appreciable dip in temperature, with an average high of 9°C (48.2°F) and a low of 4.7°C (40.5°F). Sunshine hours dwindle to 4.1 hours a day, signaling shorter days. The elevation in humidity to 87% indicates increased moisture levels in the air. Weather in November »Weather in December
Eventually, December unfolds itself as the coldest month, with temperatures reaching a chilly high of 5.8°C (42.4°F) and a freezing low of 2.4°C (36.3°F). The onset of snowfall becomes prominent with 9mm (0.35") snowfall in December. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Zwolle, Netherlands
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (4.6°C).
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure
Zwolle, Netherlands
- Average pressure in January:
1014.6mbar - Average pressure in February:
1014.2mbar - Average pressure in March:
1015.6mbar - Average pressure in April:
1016mbar - Average pressure in May:
1016.5mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1015.2mbar - Average pressure in August:
1015.1mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1015.7mbar - Average pressure in November:
1011.5mbar - Average pressure in December:
1014.2mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed
Zwolle, Netherlands
- Average wind speed in January:
18.2km/h - Average wind speed in February:
18.1km/h - Average wind speed in March:
16.3km/h - Average wind speed in April:
13.7km/h - Average wind speed in May:
13.6km/h - Average wind speed in June:
12.7km/h
- Average wind speed in July:
12.3km/h - Average wind speed in August:
12.3km/h - Average wind speed in September:
12.5km/h - Average wind speed in October:
14.6km/h - Average wind speed in November:
16.1km/h - Average wind speed in December:
18.5km/h
The windiest month (with the highest average wind speed) is December (18.5km/h).
The calmest months (with the lowest average wind speed) are July and August (12.3km/h).
Average humidity
Zwolle, Netherlands
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall
Zwolle, Netherlands
The wettest month (with the highest rainfall) is June (25mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days
Zwolle, Netherlands
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
9.4 days - Average rainfall days in May:
11.5 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
9.3 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is October (8.9 days).
Average snowfall
Zwolle, Netherlands
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Zwolle, Netherlands
- Average snowfall days in January:
2.7 days - Average snowfall days in February:
2.9 days - Average snowfall days in March:
0.6 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Zwolle, Netherlands
- Average daylight in January:
8h and 18min - Average daylight in February:
9h and 54min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 0min - Average daylight in May:
15h and 48min - Average daylight in June:
16h and 42min
- Average daylight in July:
16h and 18min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 48min - Average daylight in December:
7h and 48min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 42min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 6min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
8h and 54min - Average sunshine in August:
8h and 48min - Average sunshine in September:
7h and 6min - Average sunshine in October:
4h and 48min - Average sunshine in November:
4h and 6min - Average sunshine in December:
3h and 24min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days
Zwolle, Netherlands
- Average sunshine days in January:
16.4 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
17.3 days - Average sunshine days in May:
15.7 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13.6 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
17.3 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is June (13.3 days).
Average UV index
Zwolle, Netherlands
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Zwolle, Netherlands
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility
Zwolle, Netherlands
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).





