Climate averages 1991–2020

Brampton weather
in May.

A mild, moderately wet month: the 5th warmest and the joint 9th driest of the year.

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

Average high 18.5°C Daytime mean, May
Average low 8.0°C Night-time mean, May
Rainfall 79 mm 11 days with ≥1 mm
Daylight 15 h Sunrise to sunset, per day
Every month in Brampton · average highYear overview

May is a mild month in Brampton: daytime highs average 18.5°C and nights cool to about 8.0°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 79 mm of rain on roughly 11 days, which makes May a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 42 min on an average May day.

The nearest other city in this atlas is Mississauga (15 km away). In May its highs average 17.7°C, 0.8°C cooler than Brampton, with 81 mm of rain.

Among the 86 cities listed in Canada, Brampton ranks joint 8th of 86 for the warmest May highs and 27th of 86 for the driest May (rainfall, lowest first). The mean May high of those 86 cities is 17.0°C; Brampton is 1.5°C warmer than that mean.

From May to June, average highs rise by 5.2°C to 23.6°C, and monthly rainfall rises from 79 mm to 85 mm.

The annual picture

May 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. -15-10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

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

Every month, side by side

Brampton climate table

1991–2020
Monthly climate averages for Brampton, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -1.8°C-9.9°C-9.9°C6010.19.39 h
February -0.9°C-10.3°C-10.3°C508.110.510 h
March 4.3°C-5.3°C-5.3°C579.211.912 h
April 11.3°C1.2°C1.2°C8011.013.413 h
May, selected 18.5°C8.0°C8.0°C7911.014.715 h
June 23.6°C13.8°C13.8°C8511.115.415 h
July 26.2°C16.7°C16.7°C7910.415.115 h
August 25.1°C16.2°C16.2°C719.514.014 h
September 21.1°C12.5°C12.5°C719.012.613 h
October 13.9°C6.3°C6.3°C7410.511.111 h
November 6.8°C0.1°C0.1°C679.89.710 h
December 1.2°C-5.2°C-5.2°C599.99.09 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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

May in nearby cities

Distance from Brampton

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