April is one of the cooler months of the year in Thatcham, with average highs near 12.8°C and lows around 3.6°C (mean 8.2°C). It is one of the drier months, averaging 52 mm of rainfall and 84% relative humidity across the period.
April is one of the cooler months of the year in Thatcham. Across 45 years of records, the warmest April in Thatcham was 2011 — when the month averaged 11.4°C — while the coldest was 1986 at 5.1°C. Typical April days reach 12.8°C with nights near 3.6°C. The long-term trend is warming, about 0.4°C per decade.
April is one of the drier months in Thatcham, averaging 52 mm of rainfall. The wettest April on record was 2000 with 156 mm, while the driest was 2007 at 6 mm.
Relative humidity in Thatcham during April averages 84%. The most humid Aprils were 1998 and 2018 at 89%, and the least humid was 1997 at 79%.
April receives about 3.9 kWh/m²/day of solar energy in Thatcham. The sunniest April was 2025 at 4.9 kWh/m²/day, and the cloudiest were 1993 and 1998 at 3.2.
Average wind speed in Thatcham during April is 3.2 m/s. The windiest April was 1994 at 4.1 m/s, while the calmest were 2009, 2017 and 2021 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.3°C | 8.0°C | 8.7°C | 8.6°C | 8.6°C | +1.3°C |
| Avg High | 11.8°C | 12.4°C | 13.1°C | 13.2°C | 13.6°C | +1.8°C |
| Avg Low | 2.7°C | 3.6°C | 4.3°C | 3.9°C | 3.7°C | +1°C |
| Avg Rain | 52 mm | 56 mm | 59 mm | 46 mm | 44 mm | -8 mm |
April temperatures in Thatcham have risen by about 1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -4.5°C (1996) to a record high of 24°C (2018).
Rainfall in April is one of the drier months, averaging 52 mm, with a wettest year of 156 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.3°C per decade, widening the gap between day and night.
A good time to visit Thatcham
April is a good time to visit Thatcham, with days averaging 12.8°C and nights around 3.6°C (mean 8.2°C, cooler than Thatcham's yearly average) and moderate rainfall. July and August are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 15.8°C | 10.2°C | 4.6°C | 22.8°C | 0.0°C | 32 mm | 81% | 2.7 m/s | 4.9 |
| 2024 | 12.8°C | 9.0°C | 5.3°C | 17.9°C | 0.9°C | 72 mm | 86% | 3.9 m/s | 3.8 |
| 2023 | 12.6°C | 8.1°C | 3.6°C | 17.4°C | -2.3°C | 71 mm | 85% | 2.9 m/s | 3.9 |
| 2022 | 14.0°C | 8.9°C | 3.8°C | 20.1°C | -3.2°C | 18 mm | 80% | 3.2 m/s | 4.3 |
| 2021 | 11.0°C | 5.8°C | 0.6°C | 15.4°C | -3.3°C | 18 mm | 80% | 2.6 m/s | 4.6 |
| 2020 | 15.4°C | 9.7°C | 4.0°C | 22.0°C | -1.5°C | 54 mm | 82% | 2.8 m/s | 4.8 |
| 2019 | 13.9°C | 8.7°C | 3.6°C | 21.1°C | -2.9°C | 37 mm | 82% | 2.9 m/s | 4 |
| 2018 | 13.0°C | 9.4°C | 5.7°C | 24.0°C | 0.1°C | 77 mm | 89% | 3.3 m/s | 3.3 |
| 2017 | 13.7°C | 8.7°C | 3.7°C | 20.0°C | -1.8°C | 14 mm | 81% | 2.6 m/s | 4.3 |
| 2016 | 11.1°C | 6.8°C | 2.5°C | 14.5°C | -2.6°C | 56 mm | 84% | 3 m/s | 4.1 |
| 2015 | 14.1°C | 8.8°C | 3.5°C | 20.3°C | 0.1°C | 24 mm | 82% | 2.9 m/s | 4.7 |
| 2014 | 14.3°C | 9.8°C | 5.3°C | 16.9°C | -0.3°C | 61 mm | 86% | 2.9 m/s | 3.8 |
| 2013 | 10.6°C | 6.4°C | 2.2°C | 18.3°C | -3.4°C | 38 mm | 85% | 3.7 m/s | 4.1 |
| 2012 | 11.1°C | 7.0°C | 2.9°C | 16.2°C | -3.6°C | 116 mm | 83% | 3.4 m/s | 3.6 |
| 2011 🔥 | 17.0°C | 11.4°C | 5.9°C | 23.4°C | 2.8°C | 7 mm | 81% | 2.8 m/s | 4.6 |
| 2010 | 13.5°C | 8.5°C | 3.5°C | 18.2°C | -0.4°C | 31 mm | 82% | 2.8 m/s | 4.5 |
| 2009 | 14.3°C | 9.7°C | 5.1°C | 18.5°C | 2.4°C | 44 mm | 84% | 2.6 m/s | 4.1 |
| 2008 | 11.7°C | 7.6°C | 3.4°C | 17.6°C | -2.0°C | 59 mm | 85% | 3.3 m/s | 3.9 |
| 2007 | 16.7°C | 11.1°C | 5.5°C | 21.8°C | 0.9°C | 6 mm | 82% | 2.7 m/s | 4.7 |
| 2006 | 12.4°C | 8.4°C | 4.3°C | 16.7°C | -3.8°C | 34 mm | 84% | 3.2 m/s | 3.7 |
| 2005 | 13.1°C | 8.8°C | 4.5°C | 20.1°C | -2.0°C | 47 mm | 84% | 3 m/s | 3.7 |
| 2004 | 13.1°C | 9.0°C | 5.0°C | 19.7°C | 0.9°C | 81 mm | 85% | 3 m/s | 3.6 |
| 2003 | 13.6°C | 8.6°C | 3.6°C | 23.0°C | -3.6°C | 38 mm | 84% | 3.3 m/s | 3.9 |
| 2002 | 13.7°C | 9.0°C | 4.3°C | 20.0°C | -0.2°C | 41 mm | 82% | 3.5 m/s | 4.3 |
| 2001 | 10.9°C | 7.1°C | 3.3°C | 16.7°C | -0.9°C | 83 mm | 88% | 3.5 m/s | 3.3 |
| 2000 🌧️ | 11.0°C | 7.3°C | 3.5°C | 16.3°C | -3.0°C | 156 mm | 88% | 3.3 m/s | 3.3 |
| 1999 | 12.9°C | 8.7°C | 4.6°C | 18.5°C | -0.8°C | 59 mm | 86% | 3.4 m/s | 3.6 |
| 1998 | 10.5°C | 7.2°C | 4.0°C | 17.7°C | -1.3°C | 118 mm | 89% | 3.5 m/s | 3.2 |
| 1997 | 14.0°C | 8.5°C | 3.0°C | 18.4°C | -1.8°C | 19 mm | 79% | 2.8 m/s | 4.2 |
| 1996 | 12.2°C | 7.6°C | 3.0°C | 18.1°C | -4.5°C | 36 mm | 85% | 2.7 m/s | 3.7 |
| 1995 | 13.4°C | 8.6°C | 3.8°C | 18.7°C | -2.6°C | 26 mm | 84% | 3 m/s | 3.9 |
| 1994 | 11.1°C | 7.0°C | 2.9°C | 20.4°C | -0.4°C | 56 mm | 85% | 4.1 m/s | 3.8 |
| 1993 | 12.9°C | 8.9°C | 4.9°C | 21.3°C | 0.4°C | 91 mm | 88% | 3.5 m/s | 3.2 |
| 1992 | 12.5°C | 8.2°C | 3.8°C | 17.9°C | -1.3°C | 56 mm | 83% | 3.7 m/s | 3.4 |
| 1991 | 12.0°C | 7.6°C | 3.2°C | 18.0°C | -1.6°C | 61 mm | 82% | 4 m/s | 3.7 |
| 1990 | 12.4°C | 7.4°C | 2.4°C | 21.0°C | -4.0°C | 34 mm | 81% | 3.4 m/s | 4.4 |
| 1989 | 10.2°C | 5.9°C | 1.7°C | 15.7°C | -2.0°C | 75 mm | 84% | 3.2 m/s | 3.3 |
| 1988 | 12.6°C | 7.7°C | 2.8°C | 18.2°C | -2.7°C | 34 mm | 85% | 3 m/s | 3.7 |
| 1987 | 14.2°C | 9.6°C | 4.9°C | 20.0°C | 0.4°C | 64 mm | 86% | 2.9 m/s | 3.6 |
| 1986 ❄️ | 8.9°C | 5.1°C | 1.3°C | 14.8°C | -2.6°C | 68 mm | 85% | 3.4 m/s | 3.4 |
| 1985 | 12.0°C | 7.8°C | 3.5°C | 18.1°C | -1.8°C | 48 mm | 85% | 4 m/s | 3.6 |
| 1984 | 13.0°C | 7.4°C | 1.8°C | 20.1°C | -3.7°C | 6 mm | 80% | 2.8 m/s | 4.5 |
| 1983 | 10.4°C | 6.4°C | 2.3°C | 15.8°C | -2.1°C | 93 mm | 86% | 3.3 m/s | — |
| 1982 | 12.7°C | 8.0°C | 3.2°C | 16.0°C | -2.9°C | 29 mm | 83% | 2.9 m/s | — |
| 1981 | 12.2°C | 7.6°C | 3.1°C | 19.0°C | -0.9°C | 55 mm | 84% | 3.4 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 12.8°C with lows near 3.6°C (mean 8.2°C), based on 45 years of NASA POWER data.
April averages 52 mm of rainfall in Thatcham, one of the drier months. The wettest on record was 156 mm in 2000.
The hottest April reached 24°C in 2018. The coldest dipped to -4.5°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1°C. Daytime highs moved from 12.1°C to 13.2°C and overnight lows from 2.8°C to 3.6°C over the same span.
April is one of the cooler months of the year in Thatcham and one of the drier months, so plan for around 12.8°C daytime highs and 3.6°C at night.
Not quite — April is the 6th coolest month in Thatcham, averaging 8.2°C.
For April in Thatcham, pack warm layers and a jacket for chilly mornings, with typical highs of 12.8°C and lows of 3.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 84% — quite humid.
Average wind speed in April is 3.2 m/s. The windiest April on record averaged 4.1 m/s (1994).
The wettest April on record was 2000 with 156 mm. On average, April sees 52 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Thatcham behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.
