April is one of the cooler months of the year in Westbury, with average highs near 12.6°C and lows around 4.1°C (mean 8.4°C). It is one of the drier months, averaging 56 mm of rainfall and 84% relative humidity across the period.
April is one of the cooler months of the year in Westbury. Across 45 years of records, the warmest April in Westbury was 2011 — when the month averaged 11.4°C — while the coldest was 1986 at 5.3°C. Typical April days reach 12.6°C with nights near 4.1°C. The long-term trend is warming, about 0.3°C per decade.
April is one of the drier months in Westbury, averaging 56 mm of rainfall. The wettest April on record was 2000 with 157 mm, while the driest was 2007 at 10 mm.
Relative humidity in Westbury during April averages 84%. The most humid April was 2018 at 89%, and the least humid was 2021 at 80%.
April receives about 4 kWh/m²/day of solar energy in Westbury. The sunniest April was 2015 at 4.9 kWh/m²/day, and the cloudiest was 1993 at 3.1.
Average wind speed in Westbury during April is 3.3 m/s. The windiest Aprils were 1991 and 1994 at 4.2 m/s, while the calmest was 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 | 7.5°C | 8.2°C | 8.8°C | 8.6°C | 8.9°C | +1.4°C |
| Avg High | 11.8°C | 12.2°C | 12.8°C | 12.9°C | 13.5°C | +1.7°C |
| Avg Low | 3.3°C | 4.1°C | 4.7°C | 4.4°C | 4.2°C | +0.9°C |
| Avg Rain | 52 mm | 62 mm | 62 mm | 49 mm | 50 mm | -1 mm |
April temperatures in Westbury have risen by about 0.9°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -3.7°C (1996) to a record high of 22.6°C (2025).
Rainfall in April is one of the drier months, averaging 56 mm, with a wettest year of 157 mm.
A good time to visit Westbury
April is a good time to visit Westbury, with days averaging 12.6°C and nights around 4.1°C (mean 8.4°C, cooler than Westbury'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 | 15.5°C | 10.2°C | 4.8°C | 22.6°C | 0.6°C | 41 mm | 81% | 2.8 m/s | 4.8 |
| 2024 | 12.8°C | 9.3°C | 5.8°C | 17.1°C | 1.8°C | 77 mm | 86% | 4 m/s | 3.7 |
| 2023 | 12.4°C | 8.3°C | 4.2°C | 17.1°C | -1.8°C | 76 mm | 86% | 3 m/s | 3.8 |
| 2022 | 13.6°C | 9.0°C | 4.4°C | 19.0°C | -1.7°C | 30 mm | 82% | 3.2 m/s | 4.1 |
| 2021 | 11.3°C | 6.4°C | 1.5°C | 15.4°C | -1.9°C | 22 mm | 80% | 2.6 m/s | 4.8 |
| 2020 | 15.2°C | 10.0°C | 4.7°C | 21.5°C | -0.9°C | 57 mm | 82% | 2.9 m/s | 4.8 |
| 2019 | 13.3°C | 8.8°C | 4.3°C | 20.8°C | -2.2°C | 56 mm | 83% | 3 m/s | 4.1 |
| 2018 | 12.6°C | 9.2°C | 5.7°C | 21.0°C | -0.9°C | 81 mm | 89% | 3.4 m/s | 3.5 |
| 2017 | 13.5°C | 8.8°C | 4.1°C | 18.7°C | -0.5°C | 22 mm | 82% | 2.7 m/s | 4.3 |
| 2016 | 11.1°C | 7.0°C | 3.0°C | 14.6°C | -0.7°C | 48 mm | 84% | 3.1 m/s | 4.1 |
| 2015 | 13.9°C | 9.1°C | 4.2°C | 17.8°C | 0.5°C | 21 mm | 83% | 3 m/s | 4.9 |
| 2014 | 13.7°C | 9.6°C | 5.6°C | 16.3°C | 0.6°C | 67 mm | 87% | 2.9 m/s | 3.8 |
| 2013 | 10.4°C | 6.5°C | 2.7°C | 15.3°C | -3.3°C | 33 mm | 85% | 3.8 m/s | 3.9 |
| 2012 | 11.1°C | 7.4°C | 3.6°C | 15.1°C | -2.3°C | 109 mm | 84% | 3.6 m/s | 3.6 |
| 2011 🔥 | 16.5°C | 11.4°C | 6.4°C | 22.4°C | 2.4°C | 12 mm | 83% | 2.8 m/s | 4.6 |
| 2010 | 13.3°C | 8.6°C | 3.9°C | 17.8°C | 0.3°C | 37 mm | 83% | 2.9 m/s | 4.6 |
| 2009 | 13.6°C | 9.5°C | 5.4°C | 17.1°C | 1.9°C | 54 mm | 85% | 2.7 m/s | 4.1 |
| 2008 | 11.6°C | 7.7°C | 3.8°C | 17.3°C | -0.1°C | 55 mm | 86% | 3.4 m/s | 4.1 |
| 2007 | 16.5°C | 11.3°C | 6.2°C | 21.1°C | 1.5°C | 10 mm | 82% | 2.7 m/s | 4.8 |
| 2006 | 12.4°C | 8.5°C | 4.6°C | 16.2°C | -3.3°C | 28 mm | 84% | 3.3 m/s | 4 |
| 2005 | 12.6°C | 8.7°C | 4.8°C | 19.9°C | -0.7°C | 59 mm | 85% | 3.2 m/s | 3.9 |
| 2004 | 12.9°C | 9.3°C | 5.7°C | 19.0°C | 1.9°C | 85 mm | 86% | 3.2 m/s | 3.7 |
| 2003 | 13.7°C | 8.9°C | 4.1°C | 22.4°C | -3.2°C | 45 mm | 84% | 3.4 m/s | 4 |
| 2002 | 13.2°C | 9.0°C | 4.8°C | 17.7°C | 0.9°C | 45 mm | 83% | 3.6 m/s | 4.2 |
| 2001 | 10.8°C | 7.3°C | 3.8°C | 14.5°C | -1.4°C | 86 mm | 87% | 3.4 m/s | 3.4 |
| 2000 🌧️ | 10.7°C | 7.3°C | 3.8°C | 16.8°C | -2.2°C | 157 mm | 88% | 3.5 m/s | 3.4 |
| 1999 | 12.5°C | 8.8°C | 5.0°C | 18.3°C | -1.9°C | 75 mm | 87% | 3.6 m/s | 3.6 |
| 1998 | 10.5°C | 7.3°C | 4.1°C | 14.6°C | -0.6°C | 123 mm | 88% | 3.7 m/s | 3.5 |
| 1997 | 13.9°C | 8.9°C | 3.8°C | 18.1°C | -0.3°C | 27 mm | 80% | 2.8 m/s | 4.1 |
| 1996 | 11.9°C | 7.8°C | 3.6°C | 16.9°C | -3.7°C | 63 mm | 87% | 2.8 m/s | 3.6 |
| 1995 | 13.2°C | 8.8°C | 4.4°C | 18.3°C | -0.7°C | 27 mm | 84% | 3 m/s | 3.9 |
| 1994 | 11.1°C | 7.3°C | 3.4°C | 19.9°C | -2.2°C | 50 mm | 85% | 4.2 m/s | 3.9 |
| 1993 | 12.8°C | 9.1°C | 5.4°C | 20.9°C | 1.2°C | 90 mm | 88% | 3.6 m/s | 3.1 |
| 1992 | 12.3°C | 8.4°C | 4.5°C | 16.6°C | -0.7°C | 66 mm | 83% | 3.9 m/s | 3.6 |
| 1991 | 11.9°C | 7.8°C | 3.6°C | 17.2°C | -0.8°C | 73 mm | 83% | 4.2 m/s | 3.5 |
| 1990 | 12.2°C | 7.7°C | 3.1°C | 20.6°C | -3.5°C | 31 mm | 81% | 3.5 m/s | 4.5 |
| 1989 | 10.2°C | 6.1°C | 2.0°C | 14.6°C | -1.8°C | 67 mm | 84% | 3.2 m/s | 3.5 |
| 1988 | 12.6°C | 8.0°C | 3.4°C | 16.3°C | -1.9°C | 35 mm | 84% | 3.1 m/s | 3.9 |
| 1987 | 14.0°C | 9.7°C | 5.3°C | 19.9°C | 0.1°C | 60 mm | 86% | 3 m/s | 3.7 |
| 1986 ❄️ | 8.8°C | 5.3°C | 1.8°C | 14.4°C | -2.2°C | 65 mm | 85% | 3.4 m/s | 3.5 |
| 1985 | 12.0°C | 8.1°C | 4.3°C | 17.2°C | -1.1°C | 51 mm | 85% | 4.1 m/s | 3.6 |
| 1984 | 13.0°C | 7.7°C | 2.4°C | 19.7°C | -3.2°C | 10 mm | 80% | 2.9 m/s | 4.7 |
| 1983 | 10.2°C | 6.5°C | 2.8°C | 15.4°C | -0.5°C | 95 mm | 86% | 3.2 m/s | — |
| 1982 | 12.8°C | 8.3°C | 3.7°C | 16.3°C | -1.4°C | 36 mm | 84% | 2.8 m/s | — |
| 1981 | 12.2°C | 8.0°C | 3.7°C | 18.0°C | -0.3°C | 47 mm | 85% | 3.5 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 12.6°C with lows near 4.1°C (mean 8.4°C), based on 45 years of NASA POWER data.
April averages 56 mm of rainfall in Westbury, one of the drier months. The wettest on record was 157 mm in 2000.
The hottest April reached 22.6°C in 2025. The coldest dipped to -3.7°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.9°C. Daytime highs moved from 12°C to 13.1°C and overnight lows from 3.4°C to 4.1°C over the same span.
April is one of the cooler months of the year in Westbury and one of the drier months, so plan for around 12.6°C daytime highs and 4.1°C at night.
Not quite — April is the 6th coolest month in Westbury, averaging 8.4°C.
For April in Westbury, pack warm layers and a jacket for chilly mornings, with typical highs of 12.6°C and lows of 4.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 84% — quite humid.
Average wind speed in April is 3.3 m/s. The windiest April on record averaged 4.2 m/s (1991).
The wettest April on record was 2000 with 157 mm. On average, April sees 56 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 Westbury 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.
