Climate guideThirty-year normals for Ulm
Ulm climate by month
Oceanic · CfbBest Jul–Sep
Annual mean9°day and night
Seasonal swing19°warmest vs coolest
Precipitation861 mm158 wet days a year
48.40° N, 9.99° EElevation 480 mUTC+2 · Central European Summer Time
When to goUlm · weather score
Best timeJul–Sep
October: high / low14° / 5°
iSummary
What the weather is like
Ulm has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is July, when afternoons average 24° and nights 13°. January is the coolest month, with highs of 3° and lows of -3°. The difference between the warmest and the coolest month is about 19°.
About 861 mm of precipitation falls in an average year. June is the wettest month (91 mm, 16 wet days) and April the driest (58 mm, 11 wet days). Cloud cover ranges from 32% in July to 53% in December.
Compared with Berlin, the capital, Ulm is 0.9° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 24° · July
- Coldest nights
- -3° · January
- Wettest month
- June
- Driest month
- April
- Clearest skies
- July · 32% cloud
- Longest day
- 16 h 05 min
- Shortest day
- 8 h 21 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 3° | 5° | 10° | 15° | 19° | 22° | 24° | 24° | 19° | 14° | 7° | 3° |
| Average low | -3° | -3° | 1° | 4° | 8° | 11° | 13° | 13° | 9° | 5° | 1° | -2° |
| Precipitation | 54 mm | 48 mm | 58 mm | 58 mm | 94 mm | 91 mm | 100 mm | 88 mm | 72 mm | 68 mm | 61 mm | 69 mm |
| Wet days (≥1 mm) | 13.9 | 11.4 | 12.6 | 11.2 | 15.2 | 15.6 | 14.8 | 14.8 | 11.5 | 11.8 | 11.2 | 14.2 |
| Cloud cover | 48% | 45% | 44% | 41% | 40% | 36% | 32% | 33% | 39% | 46% | 51% | 53% |
| Daylight | 8h 45 | 10h 13 | 11h 50 | 13h 39 | 15h 12 | 16h 05 | 15h 43 | 14h 22 | 12h 38 | 10h 53 | 9h 15 | 8h 21 |
| Month score | 18 | 25 | 22 | 51 | 63 | 65 | 66 | 66 | 69 | 42 | 23 | 15 |
ivMonth by month
Ulm in every month
January18
3° / -3°
54 mm · 13.9 wet days
February25
5° / -3°
48 mm · 11.4 wet days
March22
10° / 1°
58 mm · 12.6 wet days
April51
15° / 4°
58 mm · 11.2 wet days
May63
19° / 8°
94 mm · 15.2 wet days
June65
22° / 11°
91 mm · 15.6 wet days
July66
24° / 13°
100 mm · 14.8 wet days
August66
24° / 13°
88 mm · 14.8 wet days
September69
19° / 9°
72 mm · 11.5 wet days
October42
14° / 5°
68 mm · 11.8 wet days
November23
7° / 1°
61 mm · 11.2 wet days
December15
3° / -2°
69 mm · 14.2 wet days