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Groningen in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Groningen in May will be like? Take a look at our weather guide for Groningen, based on historical data.
Check flight prices to Groningen on Avionero:
May

Weather in Groningen in May 2025

OK Weather
Mild
🌧️
Rainy
If you plan to visit Groningen in May, the weather is typically alright, with an average high temperature of +17°C during the day and approximately 4 sunny days. Expect some rainy, though, as there are typically 16 rainy days in the month and around 60 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • May is usually the driest month of the year in Groningen

Average weather

☀️
+17°C
Avg. max. temperature
0°C
Min.
+30°C
Max.
60 mm
Total precipitation
77%
Avg. humidity
3 m/s
Avg. wind
4 ☀️
Sunny Days
10 ⛅️
Cloudy
16 🌦
Rainy
Our opinion: Groningen has OK weather in May.

Average temperature in Groningen in May

Here are the expected maximum, average and minimum temperatures in Groningen for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +23°C during the day to a minimum of +2°C during the night, the temperature in May averages around +18°C.

The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +18°C to +18°C.

Is Groningen warm or cold in May?

Groningen is typically mild in May.

Maximum temperatures go up compared to the previous month from +13°C to +17°C. The minimum temperature also goes up from +4°C to +8°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Groningen:

Climate in Groningen in May

Groningen weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+13°C+17°C+19°C
Min. temperature
-6°C0°C+3°C
Max. temperature
+28°C+30°C+34°C
Rainfall
46 mm60 mm73 mm
Wind
3 m/s3 m/s3 m/s
Humidity
78%77%79%
Air pressure
1014 HPa1015 HPa1015 HPa
Sunny days
443
Cloudy days
10108
Rainy days
151618
Snowy days
000

May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +13°C to +17°C during the day. Prepare for more rain. Average rainfall goes from 46 mm to 60 mm. It feels drier, as humidity decreases from 78% to 77%. The average wind speed doesn’t change much during May, staying around 3 m/s. The amount of sunny days stay about the same, averaging 4 sunny days during the month.

June brings much the same weather, it remains ok.

Wind

Wind speed in Groningen in May based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Groningen is gradually increasing during May, going from 2 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Groningen based on historical data.
Last Year
Historical Data
Typically, there is a 39% chance of rain on an average day in May, with total rainfall of approximately 55 mm. The maximum amount of rainfall per day is around 10 mm, which is considered light rain. May is a pretty wet month with over 12 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Groningen wettest month is July, where a typical day has a 61% chance of precipitation and 83 mm of rainfall per day. February, on the other hand, is the driest month with a mere 34% chance of precipitation and 40 mm of rainfall per day.

How was the weather last May in Groningen?

This is the weather in Groningen in May 2023:
1 May
☁️
+18°C
2 May
☁️
+12°C
3 May
☁️
+13°C
4 May
☁️
+18°C
5 May
🌧️
+19°C
6 May
🌧️
+19°C
7 May
🌧️
+19°C
8 May
☀️
+22°C
9 May
🌧️
+19°C
10 May
🌧️
+16°C
11 May
🌫️
+16°C
12 May
🌫️
+22°C
13 May
☀️
+21°C
14 May
☁️
+22°C
15 May
☁️
+16°C
16 May
🌧️
+14°C
17 May
☁️
+13°C
18 May
☁️
+15°C
19 May
☀️
+18°C
20 May
☁️
+19°C
21 May
☁️
+22°C
22 May
🌧️
+23°C
23 May
☁️
+15°C
24 May
☁️
+16°C
25 May
☁️
+15°C
26 May
☁️
+16°C
27 May
☀️
+20°C
28 May
☀️
+19°C
29 May
☁️
+15°C
30 May
☁️
+15°C
31 May
☀️
+18°C
In May 2023 Groningen had 6 sunny days, 16 cloudy days, and 7 rainy days. The average maximum temperature was +18°C, with an absolute maximum of +23°C and a minimum of +12°C. The average humidity was 78%, with a maximum of 100% and a minimum of 48%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Groningen climate have been changing during last 43 years period.

The climate in Groningen in May has not changed much over the last 43 years.

The average temperature was the lowest in 1979 (+11°C) and the highest in 2022 (+16°C). The driest year was 1996 with only 436 mm of rainfall, and the wettest year was 2023 with 1200 mm.

FAQ

Frequently asked questions about the weather in Groningen in May:

Is May a good time to visit Groningen?

It’s always a good time to visit Groningen, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Groningen in May?

May has mild temperatures in Groningen. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Groningen rainy in May?

Groningen is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Groningen in May?

Usually, it’s not very sunny in Groningen in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Netherlands

Check out the weather for other cities in Netherlands.

Monthly weather in Groningen

Source of the data

For this page, we’ve looked at the typical weather in Groningen, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.