Grimsby weather
UK towns · Lincolnshire, England · 53.57°N 0.08°W
Grimsby, in Lincolnshire, England, has its warmest weather in August, when daytime temperatures average 20.7°C, while January nights are the coldest at around 2.8°C. The town sees roughly 781mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 7.6° | 2.8° | 49mm | 10 |
| Feb | 9.5° | 4.1° | 69mm | 12 |
| Mar | 10.2° | 4.3° | 52mm | 12 |
| Apr | 11.4° | 5.1° | 47mm | 11 |
| May | 15.2° | 8.6° | 61mm | 12 |
| Jun | 18° | 11.5° | 60mm | 10 |
| Jul | 20.1° | 13.4° | 83mm | 14 |
| Aug | 20.7° | 13.8° | 63mm | 13 |
| Sep | 18.3° | 12.1° | 73mm | 14 |
| Oct | 14.9° | 9.4° | 88mm | 14 |
| Nov | 10.7° | 5.9° | 55mm | 10 |
| Dec | 8.2° | 4.1° | 81mm | 14 |
Grimsby weather FAQs
What is the warmest month in Grimsby?
August is typically the warmest month in Grimsby, with average daytime highs of 20.7°C. Summer afternoons (June–August) average around 19.6°C.
What is the wettest month in Grimsby?
October is usually the wettest month, with around 88mm of rain over roughly 14 rainy days. April is typically the driest (47mm).
How much does it rain in Grimsby per year?
Grimsby receives roughly 781mm of precipitation per year, spread over about 146 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Grimsby?
Winter nights (December–February) in Grimsby average around 3.7°C, with January typically the coldest month (average low 2.8°C).