Hemel Hempstead Climate by Month
Hemel Hempstead, England, United Kingdom
Mild summers and cool winters, with rain spread through the year.
Mild summers and cool winters, with rain spread through the year: that's Hemel Hempstead's climate in short. Afternoon highs range from 46°F (8°C) in January to 73°F (23°C) in July, and January nights average 35°F (2°C). It gets 29 in (727 mm) of rain a year, spread across the months. The air is humid, averaging 78% relative humidity.
- Warmest month
- 73°F(23°C)
- Average high, July
- Coldest nights
- 35°F(2°C)
- Average low, January
- Rain per year
- 29 in(727 mm)
- No clear rainy season
- Humidity
- 78%
- Sunniest: June
Best and worst months in Hemel Hempstead
Best for weatherThe most comfortable weather comes in July and August, with highs around 73°F (23°C) and about 2.3 in (60 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 46°F (8°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)
Hemel Hempstead weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 46°F(8°C) | 35°F(2°C) | 2.6 in(66 mm) | 82% | 0.7 |
| FebFebruary | 47°F(8°C) | 35°F(2°C) | 2.0 in(52 mm) | 80% | 1.3 |
| MarMarch | 51°F(11°C) | 38°F(3°C) | 1.9 in(47 mm) | 80% | 2.5 |
| AprApril | 57°F(14°C) | 41°F(5°C) | 1.9 in(49 mm) | 76% | 3.7 |
| MayMay | 63°F(17°C) | 46°F(8°C) | 2.0 in(51 mm) | 69% | 4.6 |
| JunJune | 69°F(20°C) | 51°F(11°C) | 2.2 in(56 mm) | 74% | 5.0 |
| JulJulyBest | 73°F(23°C) | 55°F(13°C) | 2.1 in(54 mm) | 69% | 4.8 |
| AugAugustBest | 72°F(22°C) | 55°F(13°C) | 2.6 in(65 mm) | 70% | 4.0 |
| SepSeptember | 67°F(19°C) | 50°F(10°C) | 2.4 in(60 mm) | 78% | 3.0 |
| OctOctober | 58°F(15°C) | 46°F(8°C) | 3.1 in(80 mm) | 83% | 1.7 |
| NovNovember | 51°F(11°C) | 40°F(4°C) | 3.0 in(75 mm) | 87% | 0.9 |
| DecDecember | 46°F(8°C) | 37°F(3°C) | 2.8 in(72 mm) | 91% | 0.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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