Climate averages 1991–2020

Grimsby weather
in October.

A cool, moderately wet month: the 6th warmest and the 9th driest of the year.

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

Average high 13.8°C Daytime mean, October

Average low 8.4°C Night-time mean, October

Rainfall 59 mm 11 days with ≥1 mm

Daylight 11 h Sunrise to sunset, per day

October is a cool month in Grimsby: daytime highs average 13.8°C and nights cool to about 8.4°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 59 mm of rain on roughly 11 days, which makes October a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 37 min on an average October day.

The nearest other city in this atlas is Kingston upon Hull (26 km away). In October its highs average 13.7°C, about as warm as Grimsby, with 63 mm of rain.

Among the 143 cities listed in the United Kingdom, Grimsby ranks joint 65th of 143 for the warmest October highs and joint 25th of 143 for the driest October (rainfall, lowest first). The mean October high of those 143 cities is 13.6°C; Grimsby is 0.2°C warmer than that mean.

From October to November, average highs fall by 4.0°C to 9.8°C, and monthly rainfall falls from 59 mm to 55 mm.

The annual picture

October 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	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, selected	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

October 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.