Climate averages 1991–2020

Grimsby weather
in April.

A cool, moderately wet month: the 7th warmest and the 3rd driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 11.8°C Daytime mean, April

Average low 5.0°C Night-time mean, April

Rainfall 48 mm 11 days with ≥1 mm

Daylight 14 h Sunrise to sunset, per day

April is a cool month in Grimsby: daytime highs average 11.8°C and nights cool to about 5.0°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 48 mm of rain on roughly 11 days, which makes April a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 58 min on an average April day.

The nearest other city in this atlas is Kingston upon Hull (26 km away). In April its highs average 11.6°C, about as warm as Grimsby, with 50 mm of rain.

Among the 143 cities listed in the United Kingdom, Grimsby ranks joint 104th of 143 for the warmest April highs and joint 15th of 143 for the driest April (rainfall, lowest first). The mean April high of those 143 cities is 12.2°C; Grimsby is 0.4°C cooler than that mean.

From April to May, average highs rise by 2.8°C to 14.6°C, and monthly rainfall rises from 48 mm to 52 mm.

The annual picture

April in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Grimsby climate table

1991–2020

Monthly climate averages for Grimsby, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	6.9°C2.4°C	2.4°C	49	11.2	8.18 h
February	7.5°C2.2°C	2.2°C	40	9.8	9.810 h
March	9.5°C3.3°C	3.3°C	43	11.1	11.812 h
April, selected	11.8°C5.0°C	5.0°C	48	11.2	14.014 h
May	14.6°C7.8°C	7.8°C	52	10.9	15.916 h
June	17.5°C10.7°C	10.7°C	65	11.8	16.917 h
July	19.9°C12.9°C	12.9°C	70	12.7	16.516 h
August	19.9°C13.0°C	13.0°C	66	11.7	14.815 h
September	17.4°C11.1°C	11.1°C	56	9.7	12.813 h
October	13.8°C8.4°C	8.4°C	59	10.7	10.611 h
November	9.8°C5.1°C	5.1°C	55	11.9	8.79 h
December	7.1°C2.8°C	2.8°C	52	11.2	7.68 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

April in nearby cities

Distance from Grimsby

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Grimsby) is explained once on the Grimsby year overview and on the Sources, method and limits page.