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Climate guideThirty-year normals for Siegen
Siegen climate by month
Oceanic · CfbBest Jul–Sep
Annual mean9°day and night
Seasonal swing17°warmest vs coolest
Precipitation1,070 mm169 wet days a year
50.87° N, 8.02° EElevation 272 mUTC+2 · Central European Summer Time
When to goSiegen · weather score
Best timeJul–Sep
October: high / low13° / 6°
iSummary
What the weather is like
Siegen 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 4° and lows of -2°. The difference between the warmest and the coolest month is about 17°.
About 1,070 mm of precipitation falls in an average year. December is the wettest month (114 mm, 17 wet days) and April the driest (62 mm, 11 wet days). Cloud cover ranges from 36% in August to 59% in December.
Compared with Berlin, the capital, Siegen is 1.4° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 24° · July
- Coldest nights
- -2° · January
- Wettest month
- December
- Driest month
- April
- Clearest skies
- August · 36% cloud
- Longest day
- 16 h 29 min
- Shortest day
- 7 h 58 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 | 4° | 5° | 9° | 15° | 19° | 22° | 24° | 23° | 19° | 13° | 8° | 4° |
| Average low | -2° | -2° | 1° | 4° | 8° | 11° | 13° | 12° | 9° | 6° | 2° | -1° |
| Precipitation | 116 mm | 87 mm | 95 mm | 62 mm | 72 mm | 81 mm | 85 mm | 79 mm | 86 mm | 92 mm | 101 mm | 114 mm |
| Wet days (≥1 mm) | 16.6 | 13.4 | 13.4 | 10.7 | 13.8 | 14.1 | 16.2 | 15 | 10.8 | 13.2 | 14.7 | 16.9 |
| Cloud cover | 55% | 50% | 48% | 42% | 41% | 40% | 37% | 36% | 43% | 49% | 58% | 59% |
| Daylight | 8h 26 | 10h 02 | 11h 49 | 13h 48 | 15h 31 | 16h 29 | 16h 05 | 14h 35 | 12h 41 | 10h 47 | 8h 59 | 7h 58 |
| Month score | 15 | 18 | 19 | 52 | 63 | 63 | 64 | 65 | 69 | 37 | 13 | 13 |
ivMonth by month
Siegen in every month
January15
4° / -2°
116 mm · 16.6 wet days
February18
5° / -2°
87 mm · 13.4 wet days
March19
9° / 1°
95 mm · 13.4 wet days
April52
15° / 4°
62 mm · 10.7 wet days
May63
19° / 8°
72 mm · 13.8 wet days
June63
22° / 11°
81 mm · 14.1 wet days
July64
24° / 13°
85 mm · 16.2 wet days
August65
23° / 12°
79 mm · 15 wet days
September69
19° / 9°
86 mm · 10.8 wet days
October37
13° / 6°
92 mm · 13.2 wet days
November13
8° / 2°
101 mm · 14.7 wet days
December13
4° / -1°
114 mm · 16.9 wet days