Weather in Bielefeld in April

A good month. April is a solid month to be in Bielefeld. Highs sit at 14.3 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

April ranks 6 of 12 in Bielefeld: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain on 10 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 14.3 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 4 nights fall below freezing. Across the twenty years measured, the hottest April day reached 26.1 °C and the coldest night fell to -5.2 °C.

April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 73 mm against 5 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 44 mm average is a reasonable planning figure, not a promise.

Wind is light at 10.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 79%, which at 14.3 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How April sits in the year

The month is on the way up: 5.3 °C warmer than March, and May adds another 3.6 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in April

13.8 hours of daylight, gaining 1.9 hours across the month. That is between Bielefeld's extremes of 16.7 and 7.8 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 25 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April in Bielefeld versus nearby

If Bielefeld is one option among several, the nearby comparison is worth making. Köln is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Groningen is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: April works, with September the better month by 16 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Bielefeld

See all twelve months in Bielefeld, or where else to go in April.