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Basel in April: Weather, Average temperature and Climate

Take a look at past year’s weather for Basel in April and see if it is worth visiting.
Check flight prices to Basel on Avionero:
April

Weather in Basel in April 2025

Good Weather
Mild
☁️
Cloudy
Planning a trip to Basel in April? You are in luck! The weather is generally good, with an average maximum temperature of +59°F and approximately 8 sunny days. Just be prepared for some rain, as there are usually around 10 rainy days and 87 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.
Good to know:
  • April is usually the driest month of the year in Basel

Average weather

☀️
+59°F
Avg. max. temperature
+25°F
Min.
+84°F
Max.
87 mm
Total precipitation
68%
Avg. humidity
1 m/s
Avg. wind
8 ☀️
Sunny Days
12 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: Basel has good weather in April.

Average temperature in Basel in April

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

The expected average maximum temperature in April is +61°F with a maximum of +73°F and a minimum of +28°F.

The average maximum temperature goes up 48% by the end of the month, compared with the beginning of the month, from +41°F to +63°F.

Is Basel warm or cold in April?

Basel is typically mild in April.

Maximum temperatures go up compared to the previous month from +54°F to +59°F. The minimum temperature also goes up from +37°F to +41°F.

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

Take a look at how April is compared to other months in Basel:

Climate in Basel in April

Basel weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+54°F+59°F+68°F
Min. temperature
+7°F+25°F+30°F
Max. temperature
+77°F+84°F+91°F
Rainfall
73 mm87 mm129 mm
Wind
2 m/s1 m/s1 m/s
Humidity
71%68%70%
Air pressure
1016 HPa1013 HPa1014 HPa
Sunny days
887
Cloudy days
131210
Rainy days
91014
Snowy days
100

April weather is still as good as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +54°F to +59°F during the day. Prepare for more rain. Average rainfall goes from 73 mm to 87 mm. It feels drier, as humidity decreases from 71% to 68%. Winds are calmer in comparison to March, going down from 2 m/s to 1 m/s on average. The amount of sunny days stay about the same, averaging 8 sunny days during the month.

May brings much the same weather, it remains good.

Wind

Wind speed in Basel in April based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.

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

Rain

Amount of rainfall in mm during April in Basel based on historical data.
Last Year
Historical Data
Total precipitation in April is about 122 mm, with a 50% chance of rain on a typical day. The maximum amount of rainfall per day is around 21 mm, which is considered light rain. April is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how April is compared with other months in the amount of precipitation, total mm:
Basel wettest month is May, where a typical day has a 45% chance of precipitation and 129 mm of rainfall per day. February, on the other hand, is the driest month with a mere 24% chance of precipitation and 60 mm of rainfall per day.

Snow

Amount of snow in mm during April in Basel based on historical data.
Last Year
Historical Data
The chance of snow on a typical day in April is 3%, for a monthly total of around 6 mm.

Here’s how April is compared with other months in the amount of snow, total mm:

How was the weather last April in Basel?

This is the weather in Basel in April 2023:
1 April
🌧️
+42°F
2 April
🌨️
+36°F
3 April
☁️
+40°F
4 April
☀️
+48°F
5 April
☁️
+55°F
6 April
☁️
+59°F
7 April
🌧️
+58°F
8 April
🌧️
+58°F
9 April
🌧️
+48°F
10 April
☀️
+54°F
11 April
☀️
+66°F
12 April
☀️
+74°F
13 April
☀️
+74°F
14 April
☀️
+72°F
15 April
☁️
+71°F
16 April
☀️
+64°F
17 April
☀️
+65°F
18 April
☀️
+66°F
19 April
☀️
+68°F
20 April
☀️
+65°F
21 April
☀️
+66°F
22 April
☀️
+66°F
23 April
🌧️
+61°F
24 April
🌧️
+52°F
25 April
🌧️
+60°F
26 April
🌧️
+61°F
27 April
☀️
+63°F
28 April
☀️
+70°F
29 April
☀️
+68°F
30 April
☀️
+63°F
In April 2023 Basel had 17 sunny days, 4 cloudy days, and 8 rainy days. The average maximum temperature was +61°F, with an absolute maximum of +73°F and a minimum of +36°F. The average humidity was 66%, with a maximum of 96% and a minimum of 22%. The average wind speed was 3 m/s, with a maximum of 15 m/s and a minimum of 0 m/s.
Are you planning a trip in April?

Climate Change Over the Years

This is how Basel climate has changed over the last 43 years.

The climate in Basel in April has not changed that much over the last 43 years.

The average temperature was the lowest in 1986 (+56°F) and the highest in 2007 (+73°F). The driest year was 2007 with only 14 mm of rainfall, and the wettest year was 2016 with 214 mm.

FAQ

Frequently asked questions about the weather in Basel in April:

Is April a good time to visit Basel?

April is a really good time to go to Basel. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Basel.

Can you sunbathe in Basel in April?

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

Is Basel rainy in April?

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

Is it sunny in Basel in April?

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

Other cities in Switzerland

Check out the weather for other cities in Switzerland.

Monthly weather in Basel

Source of the data

For this page, we’ve looked at the typical weather in Basel, 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.