Bismarck in May

7.4out of 10

Possible, with caveats

Mild: highs around 20°C. Frequent rain: about 10 rainy days.

20°CAvg high
7°CAvg low
10Rainy days (73 mm)
14:50 hDaylight
06:14Sunrise · 21:04 Sunset

Why this score

  • Mild: highs around 20°C
  • Frequent rain: about 10 rainy days

What to wear and pack

  • Layers you can add or remove
  • Rain jacket or compact umbrella

How reliable is the forecast?

Rain in May varies a lot between years (±3.2 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

-5° -15° J -3° -12° F 4° -6° M 13° 0° A 20° 7° M 25° 13° J 28° 16° J 28° 14° A 23° 9° S 14° 2° O 4° -5° N -3° -12° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January -5°C-15°C16 mm 4– – 4.5
February -3°C-12°C17 mm 4– – 4.5
March 4°C-6°C26 mm 5– – 5.0
April 13°C0°C45 mm 7– – 6.5
May 20°C7°C73 mm 10– – 7.4
June 25°C13°C96 mm 11– – 7.6
July 28°C16°C78 mm 10– – 7.8
August 28°C14°C58 mm 8– – 8.1
September 23°C9°C46 mm 7– – 8.2
October 14°C2°C45 mm 6– – 6.9
November 4°C-5°C21 mm 4– – 5.2
December -3°C-12°C18 mm 4– – 4.5

Frequently asked questions

How hot is Bismarck in May?

Daytime highs average 20°C and nights about 7°C.

When is the best time to visit Bismarck?

The best months are September, August, July, June.