Ulm in August

7.3out of 10

Possible, with caveats

Warm and comfortable: highs around 23°C. Frequent rain: about 13 rainy days.

23°CAvg high
13°CAvg low
13Rainy days (89 mm)
14:08 hDaylight
06:20Sunrise · 20:28 Sunset

Why this score

  • Warm and comfortable: highs around 23°C
  • Frequent rain: about 13 rainy days

What to wear and pack

  • T-shirts and light layers
  • A light jacket for cooler evenings
  • Rain jacket or compact umbrella

How reliable is the forecast?

Rain in August varies a lot between years (±3.8 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

3° -3° J 4° -3° F 9° 1° M 14° 4° A 18° 8° M 21° 11° J 23° 13° J 23° 13° A 18° 9° S 13° 5° O 7° 1° N 3° -2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 3°C-3°C61 mm 12– – 4.0
February 4°C-3°C51 mm 10– – 4.5
March 9°C1°C66 mm 13– – 5.1
April 14°C4°C62 mm 11– – 6.2
May 18°C8°C95 mm 14– – 6.4
June 21°C11°C95 mm 15– – 6.9
July 23°C13°C99 mm 15– – 7.1
August 23°C13°C89 mm 13– – 7.3
September 18°C9°C69 mm 11– – 7.0
October 13°C5°C67 mm 12– – 6.1
November 7°C1°C64 mm 11– – 5.1
December 3°C-2°C69 mm 13– – 4.0

Frequently asked questions

How hot is Ulm in August?

Daytime highs average 23°C and nights about 13°C.

When is the best time to visit Ulm?

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