Climate averages 1991–2020
Hayes weather
in April.
A cool, moderately wet month: the 7th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Hayes: daytime highs average 13.1°C and nights cool to about 5.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 49 mm of rain on roughly 11 days, which makes April a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 50 min on an average April day.
The nearest other city in this atlas is Uxbridge (5 km away). In April its highs average 13.1°C, about as warm as Hayes, with 49 mm of rain.
Among the 143 cities listed in the United Kingdom, Hayes ranks joint 14th of 143 for the warmest April highs and joint 20th of 143 for the driest April (rainfall, lowest first). The mean April high of those 143 cities is 12.2°C; Hayes is 0.9°C warmer than that mean.
From April to May, average highs rise by 3.2°C to 16.3°C, and monthly rainfall rises from 49 mm to 52 mm.
The annual picture
April in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hayes climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C2.3°C | 2.3°C | 55 | 10.9 | 8.48 h |
| February | 7.7°C2.2°C | 2.2°C | 45 | 9.2 | 9.910 h |
| March | 10.1°C3.4°C | 3.4°C | 43 | 10.1 | 11.812 h |
| April, selected | 13.1°C5.2°C | 5.2°C | 49 | 11.2 | 13.814 h |
| May | 16.3°C8.2°C | 8.2°C | 52 | 9.8 | 15.616 h |
| June | 19.1°C11.2°C | 11.2°C | 55 | 9.8 | 16.517 h |
| July | 21.3°C13.4°C | 13.4°C | 53 | 10.6 | 16.116 h |
| August | 20.9°C13.4°C | 13.4°C | 60 | 10.3 | 14.615 h |
| September | 18.2°C11.1°C | 11.1°C | 47 | 8.9 | 12.713 h |
| October | 14.3°C8.5°C | 8.5°C | 60 | 11.2 | 10.711 h |
| November | 10.1°C5.1°C | 5.1°C | 64 | 11.0 | 8.99 h |
| December | 7.5°C2.9°C | 2.9°C | 58 | 11.0 | 7.98 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Uxbridge in AprilUnited Kingdom · 5 kmHigh 13.1°C · Low 5.2°C · 49 mm rain
- Harrow in AprilUnited Kingdom · 9 kmHigh 13.0°C · Low 5.1°C · 49 mm rain
- Slough in AprilUnited Kingdom · 12 kmHigh 13.2°C · Low 5.1°C · 49 mm rain
- Watford in AprilUnited Kingdom · 16 kmHigh 12.9°C · Low 5.1°C · 50 mm rain
- Fulham in AprilUnited Kingdom · 16 kmHigh 13.4°C · Low 5.2°C · 49 mm rain
- Maidenhead in AprilUnited Kingdom · 21 kmHigh 13.2°C · Low 5.0°C · 51 mm rain
- London in AprilUnited Kingdom · 21 kmHigh 13.4°C · Low 5.0°C · 49 mm rain
- Archway in AprilUnited Kingdom · 21 kmHigh 13.1°C · Low 5.1°C · 49 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hayes) is explained once on the Hayes year overview and on the Sources, method and limits page.
Slough and Uxbridge lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.