April is one of the cooler months of the year in Costessey, with average highs near 12.8°C and lows around 4°C (mean 8.4°C). It is one of the drier months, averaging 45 mm of rainfall and 82% relative humidity across the period.
April is one of the cooler months of the year in Costessey. Across 45 years of records, the warmest April in Costessey was 2011 — when the month averaged 11.6°C — while the coldest was 2021 at 5.5°C. Typical April days reach 12.8°C with nights near 4°C. The long-term trend is warming, about 0.3°C per decade.
April is one of the drier months in Costessey, averaging 45 mm of rainfall. The wettest April on record was 1998 with 115 mm, while the driest was 2007 at 3 mm.
Relative humidity in Costessey during April averages 82%. The most humid April was 2001 at 86%, and the least humid was 1997 at 76%.
April receives about 4 kWh/m²/day of solar energy in Costessey. The sunniest April was 2025 at 5 kWh/m²/day, and the cloudiest was 1989 at 3.2.
Average wind speed in Costessey during April is 3.4 m/s. The windiest Aprils were 1991 and 2024 at 4.3 m/s, while the calmest was 2025 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.4°C | 8.4°C | 8.8°C | 8.7°C | 8.6°C | +1.2°C |
| Avg High | 11.6°C | 12.9°C | 13.3°C | 13.3°C | 13.2°C | +1.6°C |
| Avg Low | 3.2°C | 4.0°C | 4.4°C | 4.2°C | 4.0°C | +0.8°C |
| Avg Rain | 57 mm | 48 mm | 44 mm | 40 mm | 34 mm | -23 mm |
April temperatures in Costessey have risen by about 0.9°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -4°C (1990) to a record high of 24°C (2011).
Rainfall in April is one of the drier months, averaging 45 mm, with a wettest year of 115 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.4°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A good time to visit Costessey
April is a good time to visit Costessey, with days averaging 12.8°C and nights around 4°C (mean 8.4°C, cooler than Costessey's yearly average) and moderate rainfall. August and July 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 | 15.2°C | 10.1°C | 5.0°C | 22.0°C | 1.1°C | 17 mm | 81% | 2.7 m/s | 5 |
| 2024 | 13.2°C | 9.3°C | 5.4°C | 19.5°C | 0.2°C | 68 mm | 83% | 4.3 m/s | 3.9 |
| 2023 | 12.8°C | 8.3°C | 3.9°C | 16.9°C | -0.8°C | 68 mm | 81% | 3.4 m/s | 4.3 |
| 2022 | 13.3°C | 8.7°C | 4.2°C | 18.6°C | -1.2°C | 15 mm | 80% | 3.7 m/s | 4.6 |
| 2021 ❄️ | 10.2°C | 5.5°C | 0.8°C | 15.0°C | -2.8°C | 10 mm | 79% | 2.9 m/s | 4.7 |
| 2020 | 14.7°C | 9.6°C | 4.5°C | 21.7°C | -1.2°C | 26 mm | 79% | 3.1 m/s | 4.8 |
| 2019 | 13.5°C | 8.8°C | 4.1°C | 20.5°C | -0.4°C | 15 mm | 80% | 3.1 m/s | 4.3 |
| 2018 | 13.7°C | 9.9°C | 6.1°C | 23.3°C | 3.0°C | 98 mm | 86% | 3.6 m/s | 3.3 |
| 2017 | 13.2°C | 8.4°C | 3.7°C | 20.0°C | -0.1°C | 20 mm | 80% | 3.1 m/s | 4.2 |
| 2016 | 11.4°C | 7.2°C | 3.0°C | 16.0°C | -0.4°C | 59 mm | 81% | 3.2 m/s | 4.1 |
| 2015 | 13.3°C | 8.2°C | 3.0°C | 20.7°C | 0.0°C | 27 mm | 79% | 2.9 m/s | 4.6 |
| 2014 | 14.8°C | 10.4°C | 6.1°C | 18.7°C | 1.5°C | 22 mm | 83% | 3.1 m/s | 3.9 |
| 2013 | 11.6°C | 7.1°C | 2.6°C | 20.5°C | -3.4°C | 25 mm | 80% | 3.7 m/s | 4.4 |
| 2012 | 11.2°C | 7.2°C | 3.1°C | 17.0°C | -3.0°C | 105 mm | 83% | 3.5 m/s | 3.4 |
| 2011 🔥 | 16.8°C | 11.6°C | 6.4°C | 24.0°C | 2.5°C | 8 mm | 80% | 3.1 m/s | 4.5 |
| 2010 | 13.5°C | 8.6°C | 3.6°C | 19.0°C | 0.0°C | 19 mm | 80% | 2.9 m/s | 4.6 |
| 2009 | 15.2°C | 10.1°C | 5.1°C | 18.1°C | 1.8°C | 14 mm | 83% | 2.9 m/s | 4.3 |
| 2008 | 11.9°C | 7.7°C | 3.6°C | 20.3°C | -3.4°C | 43 mm | 83% | 3.4 m/s | 3.9 |
| 2007 | 16.3°C | 11.0°C | 5.7°C | 21.2°C | 0.7°C | 3 mm | 81% | 3 m/s | 4.6 |
| 2006 | 12.4°C | 8.0°C | 3.7°C | 16.2°C | -0.9°C | 36 mm | 82% | 3.4 m/s | 3.9 |
| 2005 | 13.4°C | 8.9°C | 4.4°C | 18.6°C | -0.5°C | 47 mm | 83% | 3.1 m/s | 3.9 |
| 2004 | 13.7°C | 9.2°C | 4.8°C | 20.1°C | 0.9°C | 57 mm | 84% | 3.2 m/s | 3.8 |
| 2003 | 13.2°C | 8.7°C | 4.2°C | 20.7°C | -2.1°C | 31 mm | 81% | 3.4 m/s | 4.1 |
| 2002 | 13.5°C | 8.9°C | 4.4°C | 20.4°C | 0.1°C | 37 mm | 81% | 3.5 m/s | 4.2 |
| 2001 | 10.6°C | 7.0°C | 3.4°C | 17.1°C | -1.2°C | 74 mm | 86% | 3.8 m/s | 3.4 |
| 2000 | 12.5°C | 8.5°C | 4.4°C | 18.2°C | -1.1°C | 96 mm | 84% | 3.3 m/s | 3.5 |
| 1999 | 13.5°C | 9.2°C | 4.9°C | 18.0°C | -3.3°C | 47 mm | 83% | 3.4 m/s | 4 |
| 1998 🌧️ | 11.6°C | 8.1°C | 4.6°C | 18.2°C | -1.7°C | 115 mm | 85% | 3.4 m/s | 3.4 |
| 1997 | 13.2°C | 8.4°C | 3.6°C | 17.8°C | -3.0°C | 23 mm | 76% | 3.2 m/s | 3.7 |
| 1996 | 12.7°C | 8.0°C | 3.3°C | 19.8°C | -2.9°C | 22 mm | 80% | 2.9 m/s | 3.8 |
| 1995 | 13.3°C | 8.7°C | 4.1°C | 19.4°C | -2.1°C | 17 mm | 81% | 3.5 m/s | 3.7 |
| 1994 | 11.9°C | 7.8°C | 3.8°C | 21.5°C | -0.1°C | 57 mm | 81% | 4.2 m/s | 3.9 |
| 1993 | 14.1°C | 9.6°C | 5.1°C | 23.7°C | 0.1°C | 76 mm | 84% | 3.3 m/s | 3.4 |
| 1992 | 12.9°C | 8.4°C | 4.0°C | 19.4°C | -0.5°C | 41 mm | 79% | 3.7 m/s | 3.5 |
| 1991 | 12.3°C | 7.9°C | 3.6°C | 20.2°C | -1.1°C | 45 mm | 78% | 4.3 m/s | 3.8 |
| 1990 | 13.0°C | 8.1°C | 3.1°C | 21.0°C | -4.0°C | 39 mm | 78% | 3.4 m/s | 4.5 |
| 1989 | 9.8°C | 6.3°C | 2.8°C | 15.1°C | -2.3°C | 74 mm | 82% | 3.6 m/s | 3.2 |
| 1988 | 12.0°C | 7.6°C | 3.2°C | 18.5°C | -2.9°C | 41 mm | 83% | 3.1 m/s | 3.6 |
| 1987 | 14.5°C | 9.7°C | 4.9°C | 21.5°C | 1.1°C | 51 mm | 84% | 3.3 m/s | 3.5 |
| 1986 | 9.4°C | 5.7°C | 1.9°C | 16.1°C | -2.0°C | 70 mm | 83% | 3.5 m/s | 3.4 |
| 1985 | 12.1°C | 8.0°C | 4.0°C | 18.8°C | -1.2°C | 59 mm | 82% | 4.1 m/s | 3.5 |
| 1984 | 12.2°C | 7.2°C | 2.2°C | 20.2°C | -1.9°C | 19 mm | 80% | 3 m/s | 4.5 |
| 1983 | 10.9°C | 6.9°C | 2.9°C | 16.1°C | -1.8°C | 88 mm | 86% | 3.4 m/s | — |
| 1982 | 12.1°C | 7.5°C | 2.9°C | 15.6°C | -1.2°C | 24 mm | 82% | 3.2 m/s | — |
| 1981 | 11.5°C | 7.7°C | 3.9°C | 18.9°C | -1.0°C | 86 mm | 83% | 3.6 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 4°C (mean 8.4°C), based on 45 years of NASA POWER data.
April averages 45 mm of rainfall in Costessey, one of the drier months. The wettest on record was 115 mm in 1998.
The hottest April reached 24°C in 2011. The coldest dipped to -4°C in 1990.
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 11.8°C to 12.9°C and overnight lows from 3.2°C to 3.9°C over the same span.
April is one of the cooler months of the year in Costessey and one of the drier months, so plan for around 12.8°C daytime highs and 4°C at night.
Not quite — April is the 6th coolest month in Costessey, averaging 8.4°C.
For April in Costessey, pack warm layers and a jacket for chilly mornings, with typical highs of 12.8°C and lows of 4°C.
Relative humidity in April averages 82% — quite humid.
Average wind speed in April is 3.4 m/s. The windiest April on record averaged 4.3 m/s (1991).
The wettest April on record was 1998 with 115 mm. On average, April sees 45 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 Costessey 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.
