April is one of the cooler months of the year in Grimsby, with average highs near 10.7°C and lows around 5°C (mean 7.9°C). It is about average for rainfall, averaging 46 mm of rainfall and 84% relative humidity across the period.
April is one of the cooler months of the year in Grimsby. Across 45 years of records, the warmest April in Grimsby was 2011 — when the month averaged 10.4°C — while the coldest was 1986 at 5.3°C. Typical April days reach 10.7°C with nights near 5°C. The long-term trend is warming, about 0.4°C per decade.
April is about average for rainfall in Grimsby, averaging 46 mm of rainfall. The wettest April on record was 2012 with 136 mm, while the driest were 2007 and 2011 at 9 mm.
Relative humidity in Grimsby during April averages 84%. The most humid April was 2018 at 88%, and the least humid was 2021 at 77%.
April receives about 3.8 kWh/m²/day of solar energy in Grimsby. The sunniest April was 2025 at 4.8 kWh/m²/day, and the cloudiest were 1993, 2001 and 2012 at 3.1.
Average wind speed in Grimsby during April is 4.1 m/s. The windiest April was 1991 at 5.2 m/s, while the calmest were 2009, 2010 and 2025 at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.8°C | 7.8°C | 8.2°C | 8.2°C | 8.4°C | +1.6°C |
| Avg High | 9.6°C | 10.6°C | 11.0°C | 11.1°C | 11.3°C | +1.7°C |
| Avg Low | 4.1°C | 4.9°C | 5.4°C | 5.2°C | 5.5°C | +1.4°C |
| Avg Rain | — | 51 mm | 52 mm | 44 mm | 31 mm | — |
April temperatures in Grimsby have risen by about 1.4°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -1.3°C (2013) to a record high of 21.5°C (2011).
Rainfall in April is about average for rainfall, averaging 46 mm, with a wettest year of 136 mm.
A good time to visit Grimsby
April is a good time to visit Grimsby, with days averaging 10.7°C and nights around 5°C (mean 7.9°C, cooler than Grimsby'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 | 12.8°C | 9.6°C | 6.4°C | 18.5°C | 3.9°C | 17 mm | 82% | 3.4 m/s | 4.8 |
| 2024 | 11.2°C | 8.8°C | 6.3°C | 16.4°C | 3.5°C | 65 mm | 84% | 5.1 m/s | 3.5 |
| 2023 | 10.9°C | 8.2°C | 5.4°C | 14.9°C | 2.7°C | 63 mm | 84% | 4.2 m/s | 3.8 |
| 2022 | 11.5°C | 8.6°C | 5.7°C | 15.6°C | 1.5°C | 14 mm | 82% | 4.3 m/s | 4.2 |
| 2021 | 9.1°C | 6.1°C | 3.1°C | 13.0°C | -0.5°C | 11 mm | 77% | 3.5 m/s | 4.7 |
| 2020 | 12.1°C | 9.0°C | 5.8°C | 17.8°C | 2.0°C | 14 mm | 83% | 3.8 m/s | 4.6 |
| 2019 | 11.0°C | 8.2°C | 5.5°C | 16.6°C | 2.4°C | 17 mm | 83% | 4.1 m/s | 4.2 |
| 2018 | 11.1°C | 8.6°C | 6.0°C | 21.4°C | 2.2°C | 80 mm | 88% | 4.2 m/s | 3.2 |
| 2017 | 11.5°C | 8.4°C | 5.2°C | 18.0°C | 2.2°C | 24 mm | 82% | 4 m/s | 3.9 |
| 2016 | 9.5°C | 6.9°C | 4.2°C | 12.2°C | 1.3°C | 75 mm | 84% | 4 m/s | 3.8 |
| 2015 | 11.3°C | 8.1°C | 4.9°C | 15.7°C | 2.7°C | 21 mm | 82% | 3.6 m/s | 4.5 |
| 2014 | 12.1°C | 9.3°C | 6.5°C | 14.9°C | 3.3°C | 31 mm | 87% | 3.9 m/s | 3.5 |
| 2013 | 9.4°C | 6.5°C | 3.5°C | 15.3°C | -1.3°C | 15 mm | 82% | 4.5 m/s | 3.9 |
| 2012 🌧️ | 9.6°C | 7.2°C | 4.7°C | 14.2°C | 0.8°C | 136 mm | 84% | 4.2 m/s | 3.1 |
| 2011 🔥 | 13.8°C | 10.4°C | 7.0°C | 21.5°C | 4.1°C | 9 mm | 83% | 3.6 m/s | 4.4 |
| 2010 | 11.3°C | 8.1°C | 4.9°C | 16.6°C | 1.8°C | 29 mm | 84% | 3.4 m/s | 4.1 |
| 2009 | 11.8°C | 8.8°C | 5.9°C | 15.4°C | 3.1°C | 24 mm | 87% | 3.4 m/s | 3.9 |
| 2008 | 9.8°C | 7.2°C | 4.7°C | 16.3°C | 0.5°C | 53 mm | 86% | 4.2 m/s | 3.3 |
| 2007 | 13.0°C | 9.9°C | 6.9°C | 18.2°C | 4.3°C | 9 mm | 85% | 3.6 m/s | 4.3 |
| 2006 | 10.2°C | 7.3°C | 4.5°C | 14.1°C | 1.0°C | 33 mm | 84% | 4.1 m/s | 3.8 |
| 2005 | 11.1°C | 8.1°C | 5.2°C | 16.3°C | 1.2°C | 52 mm | 86% | 4.1 m/s | 3.8 |
| 2004 | 12.0°C | 9.1°C | 6.2°C | 17.9°C | 3.1°C | 80 mm | 86% | 4 m/s | 3.4 |
| 2003 | 11.0°C | 8.2°C | 5.4°C | 15.3°C | 1.0°C | 36 mm | 84% | 4 m/s | 3.8 |
| 2002 | 11.6°C | 8.5°C | 5.3°C | 16.9°C | 2.1°C | 26 mm | 83% | 4 m/s | 4.1 |
| 2001 | 9.4°C | 6.8°C | 4.2°C | 14.7°C | 2.1°C | 81 mm | 86% | 4.5 m/s | 3.1 |
| 2000 | 10.3°C | 7.8°C | 5.3°C | 14.6°C | 1.8°C | 129 mm | 86% | 4.1 m/s | 3.3 |
| 1999 | 11.2°C | 8.5°C | 5.8°C | 15.5°C | -0.2°C | 56 mm | 86% | 4 m/s | 3.6 |
| 1998 | 9.6°C | 7.4°C | 5.1°C | 14.9°C | 0.3°C | 94 mm | 87% | 4.6 m/s | 3.2 |
| 1997 | 11.2°C | 8.0°C | 4.9°C | 16.6°C | 0.7°C | 26 mm | 81% | 4 m/s | 3.4 |
| 1996 | 10.3°C | 7.3°C | 4.3°C | 17.1°C | -0.4°C | 25 mm | 84% | 3.5 m/s | 3.4 |
| 1995 | 10.8°C | 7.9°C | 5.0°C | 15.0°C | 0.5°C | 20 mm | 84% | 4.2 m/s | 3.6 |
| 1994 | 10.0°C | 7.3°C | 4.7°C | 17.7°C | 1.2°C | 58 mm | 83% | 5 m/s | 3.7 |
| 1993 | 11.1°C | 8.4°C | 5.7°C | 16.6°C | 2.5°C | 98 mm | 87% | 3.9 m/s | 3.1 |
| 1992 | 10.9°C | 8.0°C | 5.1°C | 15.5°C | 1.5°C | 41 mm | 81% | 4.6 m/s | 3.3 |
| 1991 | 10.1°C | 7.3°C | 4.5°C | 16.2°C | 2.1°C | 40 mm | 82% | 5.2 m/s | 3.3 |
| 1990 | 10.9°C | 7.6°C | 4.3°C | — | — | — | — | — | — |
| 1989 | 8.4°C | 6.0°C | 3.5°C | — | — | — | — | — | — |
| 1988 | 10.1°C | 7.2°C | 4.4°C | — | — | — | — | — | — |
| 1987 | 11.6°C | 8.5°C | 5.5°C | — | — | — | — | — | — |
| 1986 ❄️ | 7.7°C | 5.3°C | 2.9°C | — | — | — | — | — | — |
| 1985 | 9.9°C | 7.2°C | 4.6°C | — | — | — | — | — | — |
| 1984 | 9.8°C | 6.7°C | 3.5°C | — | — | — | — | — | — |
| 1983 | 8.8°C | 6.1°C | 3.5°C | — | — | — | — | — | — |
| 1982 | 10.4°C | 7.3°C | 4.2°C | — | — | — | — | — | — |
| 1981 | 9.4°C | 7.1°C | 4.8°C | — | — | — | — | — | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 10.7°C with lows near 5°C (mean 7.9°C), based on 45 years of NASA POWER data.
April averages 46 mm of rainfall in Grimsby, about average for rainfall. The wettest on record was 136 mm in 2012.
The hottest April reached 21.5°C in 2011. The coldest dipped to -1.3°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.4°C. Daytime highs moved from 9.7°C to 11.1°C and overnight lows from 4.1°C to 5.4°C over the same span.
April is one of the cooler months of the year in Grimsby and about average for rainfall, so plan for around 10.7°C daytime highs and 5°C at night.
Not quite — April is the 6th coolest month in Grimsby, averaging 7.9°C.
For April in Grimsby, pack warm layers and a jacket for chilly mornings, with typical highs of 10.7°C and lows of 5°C.
Relative humidity in April averages 84% — quite humid.
Average wind speed in April is 4.1 m/s. The windiest April on record averaged 5.2 m/s (1991).
The wettest April on record was 2012 with 136 mm. On average, April sees 46 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 Grimsby 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.
