ClimateAverages

Markham Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
20.3°C
September overnight low
9.8°C
September average
15.2°C

In September, Markham typically sees daytime highs of 20.3°C and overnight lows around 9.8°C. Compared to the annual average high of 11.6°C, September runs +8.7°C.

vs. annual avg high
+8.7°C
Rank among 12 months
#4 warmest
Hottest year overall
2011

Where September ranks in Markham

JanFebMarAprMayJunJulAugSep20°OctNovDec

FAQ

What is the average temperature in Markham in September?

September in Markham averages a daytime high of 20.3°C and an overnight low of 9.8°C.

Is September warm or cold in Markham?

September runs +8.7°C compared to Markham's annual average high of 11.6°C, ranking #4 of 12 months by warmth.

What should I pack for Markham in September?

Plan for daytime highs near 20.3°C and cooler evenings around 9.8°C.

Other months for Markham

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

TorontoLondonOttawaMississaugaNorth YorkScarboroughHamiltonBramptonEtobicokeWindsorOshawaVaughan