Climate averages 1991–2020

Carlisle weather
in August.

A mild, moderately wet month: the 2nd warmest and the 8th driest of the year.

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

Average high 17.8°C Daytime mean, August

Average low 11.2°C Night-time mean, August

Rainfall 88 mm 15 days with ≥1 mm

Daylight 15 h Sunrise to sunset, per day

August is a mild month in Carlisle: daytime highs average 17.8°C and nights cool to about 11.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 88 mm of rain on roughly 15 days, which makes August a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 58 min on an average August day.

The nearest other city in this atlas is Newcastle upon Tyne (85 km away). In August its highs average 18.2°C, about as warm as Carlisle, with 68 mm of rain.

Among the 143 cities listed in the United Kingdom, Carlisle ranks joint 131st of 143 for the warmest August highs and joint 121st of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 19.7°C; Carlisle is 1.9°C cooler than that mean.

From August to September, average highs fall by 2.2°C to 15.5°C, and monthly rainfall falls from 88 mm to 70 mm.

The annual picture

August 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

Carlisle climate table

1991–2020

Monthly climate averages for Carlisle, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	5.9°C1.4°C	1.4°C	95	14.9	7.98 h
February	6.5°C1.3°C	1.3°C	82	13.4	9.610 h
March	8.4°C2.1°C	2.1°C	69	13.1	11.812 h
April	11.1°C3.7°C	3.7°C	66	13.3	14.114 h
May	14.2°C6.6°C	6.6°C	69	13.3	16.116 h
June	16.5°C9.5°C	9.5°C	77	13.9	17.217 h
July	18.2°C11.3°C	11.3°C	81	15.3	16.717 h
August, selected	17.8°C11.2°C	11.2°C	88	15.3	15.015 h
September	15.5°C9.3°C	9.3°C	70	12.5	12.813 h
October	12.1°C6.7°C	6.7°C	90	14.0	10.611 h
November	8.5°C3.7°C	3.7°C	89	14.9	8.58 h
December	6.1°C1.5°C	1.5°C	100	14.8	7.37 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

August in nearby cities

Distance from Carlisle

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