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Weather & Climate

Port Rowan, Ontario, Canada

Overview

Climate data and monthly weather averages for Port Rowan.

Key Metrics

Annual Avg
9.7°C
Summer Avg
21.3°C
Winter Avg
-1.7°C
Record High
30.1°C
Record Low
-23.1°C
Annual Precipitation
759.3 mm
Avg Humidity
78%
Summer Humidity
73%
Winter Humidity
85%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan10.8°-2.9°-19.8°45.686%4673.7
Feb11.3°-3.3°-23.1°41.485%5973.6
Mar19.9°0.3°-18°51.582%10376.2
Apr19.2°6.1°-6.3°60.379%13774.6
May25.1°12.5°0.7°7678%17466.5
Jun28.9°18.8°5.5°78.676%18951.5
Jul30.1°22.6°10.9°8072%19449.5
Aug29.7°22.6°14°61.771%17053.4
Sep28.6°19.2°6.6°80.473%12960.9
Oct26.2°12.7°1.5°73.876%8172.5
Nov19.1°6.6°-5.6°56.779%5079.7
Dec13.8°1.2°-12.9°53.383%3277

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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