Climate averages 1991–2020

Plymouth weather
in October.

A cool, wet month: the 6th warmest and the 10th driest of the year.

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

Average high 14.4°C Daytime mean, October
Average low 10.3°C Night-time mean, October
Rainfall 104 mm 15 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Plymouth · average highYear overview

October is a cool month in Plymouth: daytime highs average 14.4°C and nights cool to about 10.3°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 104 mm of rain on roughly 15 days, which makes October a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 47 min on an average October day.

The nearest other city in this atlas is Exeter (59 km away). In October its highs average 14.2°C, about as warm as Plymouth, with 76 mm of rain.

Among the 143 cities listed in the United Kingdom, Plymouth ranks joint 23rd of 143 for the warmest October highs and joint 126th of 143 for the driest October (rainfall, lowest first). The mean October high of those 143 cities is 13.6°C; Plymouth is 0.8°C warmer than that mean.

From October to November, average highs fall by 3.1°C to 11.3°C, and monthly rainfall rises from 104 mm to 112 mm.

The annual picture

October in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 0510152025 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

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

Every month, side by side

Plymouth climate table

1991–2020
Monthly climate averages for Plymouth, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 8.7°C4.9°C4.9°C10215.58.69 h
February 8.7°C4.4°C4.4°C7712.010.010 h
March 10.2°C5.2°C5.2°C6711.911.812 h
April 12.3°C6.5°C6.5°C6311.513.814 h
May 15.0°C9.2°C9.2°C6110.715.415 h
June 17.6°C11.9°C11.9°C6110.616.316 h
July 19.4°C13.9°C13.9°C6110.516.016 h
August 19.4°C14.1°C14.1°C6911.214.515 h
September 17.4°C12.5°C12.5°C6110.312.713 h
October, selected 14.4°C10.3°C10.3°C10414.510.811 h
November 11.3°C7.6°C7.6°C11215.49.19 h
December 9.3°C5.6°C5.6°C10915.18.18 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 Plymouth

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 Plymouth) is explained once on the Plymouth year overview and on the Sources, method and limits page.