Climate guideThirty-year normals for Hemer
Hemer climate by month
Oceanic · CfbBest May · Aug–Sep
Annual mean10°day and night
Seasonal swing16°warmest vs coolest
Precipitation1,099 mm164 wet days a year
51.39° N, 7.77° EElevation 215 mUTC+2 · Central European Summer Time
When to goHemer · weather score
Best timeMay · Aug–Sep
October: high / low14° / 6°
iSummary
What the weather is like
Hemer has an oceanic climate (Köppen Cfb): rain spread through the year and no real dry season.
The warmest month is July, when afternoons average 23° and nights 13°. January is the coolest month, with highs of 5° and lows of 0°. The difference between the warmest and the coolest month is about 16°.
About 1,099 mm of precipitation falls in an average year. January is the wettest month (108 mm, 16 wet days) and April the driest (65 mm, 10 wet days). Cloud cover ranges from 38% in August to 57% in December.
Compared with Berlin, the capital, Hemer is 1.8° cooler on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 23° · July
- Coldest nights
- -1° · February
- Wettest month
- January
- Driest month
- April
- Clearest skies
- August · 38% cloud
- Longest day
- 16 h 35 min
- Shortest day
- 7 h 53 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 | 5° | 6° | 10° | 15° | 18° | 21° | 23° | 23° | 19° | 14° | 9° | 6° |
| Average low | 0° | -1° | 1° | 4° | 7° | 11° | 13° | 12° | 9° | 6° | 3° | 1° |
| Precipitation | 108 mm | 84 mm | 97 mm | 65 mm | 80 mm | 89 mm | 97 mm | 89 mm | 91 mm | 92 mm | 102 mm | 105 mm |
| Wet days (≥1 mm) | 16.4 | 13 | 13.2 | 10.4 | 13.1 | 13.6 | 15.6 | 14.8 | 10.9 | 12.5 | 14.1 | 16.3 |
| Cloud cover | 53% | 51% | 49% | 43% | 43% | 42% | 39% | 38% | 44% | 47% | 54% | 57% |
| Daylight | 8h 21 | 10h 00 | 11h 49 | 13h 50 | 15h 35 | 16h 35 | 16h 10 | 14h 38 | 12h 42 | 10h 45 | 8h 55 | 7h 53 |
| Month score | 15 | 19 | 19 | 53 | 64 | 63 | 63 | 64 | 68 | 44 | 15 | 14 |
ivMonth by month
Hemer in every month
January15
5° / 0°
108 mm · 16.4 wet days
February19
6° / -1°
84 mm · 13 wet days
March19
10° / 1°
97 mm · 13.2 wet days
April53
15° / 4°
65 mm · 10.4 wet days
May64
18° / 7°
80 mm · 13.1 wet days
June63
21° / 11°
89 mm · 13.6 wet days
July63
23° / 13°
97 mm · 15.6 wet days
August64
23° / 12°
89 mm · 14.8 wet days
September68
19° / 9°
91 mm · 10.9 wet days
October44
14° / 6°
92 mm · 12.5 wet days
November15
9° / 3°
102 mm · 14.1 wet days
December14
6° / 1°
105 mm · 16.3 wet days