Watford Climate by Month
Watford, 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 Watford's climate in short. July is the warmest month, with highs around 74°F (23°C); January is the coolest at 46°F (8°C), and nights dip to 36°F (2°C). It gets 26 in (670 mm) of rain a year, spread across the months.
- Warmest month
- 74°F(23°C)
- Average high, July
- Coldest nights
- 36°F(2°C)
- Average low, January
- Rain per year
- 26 in(670 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: June
Best and worst months in Watford
Best for weatherThe most comfortable weather comes in July and August, with highs around 73°F (23°C) and about 2.2 in (56 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 47°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)
Watford weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 46°F(8°C) | 36°F(2°C) | 2.4 in(60 mm) | 80% | 0.7 |
| FebFebruary | 48°F(9°C) | 36°F(2°C) | 1.8 in(46 mm) | 77% | 1.3 |
| MarMarch | 53°F(11°C) | 38°F(4°C) | 1.6 in(41 mm) | 77% | 2.5 |
| AprApril | 58°F(15°C) | 42°F(5°C) | 1.7 in(44 mm) | 66% | 3.7 |
| MayMay | 64°F(18°C) | 47°F(8°C) | 2.0 in(51 mm) | 67% | 4.6 |
| JunJune | 70°F(21°C) | 52°F(11°C) | 2.1 in(54 mm) | 71% | 5.0 |
| JulJulyBest | 74°F(23°C) | 56°F(13°C) | 2.0 in(51 mm) | 67% | 4.8 |
| AugAugustBest | 73°F(23°C) | 55°F(13°C) | 2.4 in(61 mm) | 68% | 4.1 |
| SepSeptember | 67°F(20°C) | 51°F(11°C) | 2.2 in(55 mm) | 76% | 3.0 |
| OctOctober | 59°F(15°C) | 46°F(8°C) | 2.9 in(74 mm) | 81% | 1.7 |
| NovNovember | 52°F(11°C) | 40°F(5°C) | 2.7 in(68 mm) | 85% | 0.9 |
| DecDecember | 47°F(8°C) | 37°F(3°C) | 2.6 in(65 mm) | 88% | 0.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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