Iserlohn Climate by Month
Iserlohn, North Rhine-Westphalia, Germany
Mild summers and cool winters, with rain spread through the year.
Iserlohn has mild summers and cool winters, with rain spread through the year. Expect highs of 74°F (23°C) in July and 41°F (5°C) in January, with the coldest nights (February) near 31°F (0°C). About 40 in (1010 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 78% relative humidity.
- Warmest month
- 74°F(23°C)
- Average high, July
- Coldest nights
- 31°F(0°C)
- Average low, February
- Rain per year
- 40 in(1010 mm)
- No clear rainy season
- Humidity
- 78%
- Sunniest: June
Best and worst months in Iserlohn
Best for weatherJune to August are the best time for weather in Iserlohn: highs near 72°F (22°C) and about 3.8 in (96 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 42°F (6°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Iserlohn weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 41°F(5°C) | 31°F(0°C) | 3.9 in(100 mm) | 83% | 0.7 |
| FebFebruary | 43°F(6°C) | 31°F(0°C) | 3.1 in(80 mm) | 81% | 1.3 |
| MarMarch | 49°F(10°C) | 34°F(1°C) | 2.8 in(70 mm) | 78% | 2.4 |
| AprApril | 58°F(14°C) | 40°F(4°C) | 2.1 in(54 mm) | 68% | 4.0 |
| MayMay | 65°F(18°C) | 46°F(8°C) | 2.7 in(68 mm) | 73% | 4.9 |
| JunJuneBest | 71°F(21°C) | 52°F(11°C) | 3.0 in(76 mm) | 71% | 5.1 |
| JulJulyBest | 74°F(23°C) | 55°F(13°C) | 4.4 in(111 mm) | 72% | 5.1 |
| AugAugustBest | 73°F(23°C) | 54°F(12°C) | 4.0 in(101 mm) | 75% | 4.3 |
| SepSeptember | 65°F(18°C) | 49°F(9°C) | 3.1 in(80 mm) | 82% | 3.0 |
| OctOctober | 57°F(14°C) | 43°F(6°C) | 3.1 in(78 mm) | 81% | 1.7 |
| NovNovember | 48°F(9°C) | 38°F(3°C) | 3.5 in(89 mm) | 85% | 0.8 |
| DecDecember | 42°F(6°C) | 33°F(1°C) | 4.1 in(103 mm) | 91% | 0.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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