Northam climate
Typical historical weather for Northam, Australia, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Northam.
Annual average
17.8°C
across all months
Warmest month
32.5°C
Jan average high
Coolest month
6.5°C
Aug average low
Annual rainfall
353mm
total per year
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
● Avg high● Avg low▮ Rainfall
Records on file
Hottest day
44°C
19 February 2024
Coldest day
-0.5°C
11 July 2025
Wettest day
83.1mm
15 January 2018
Windiest day
8.5m/s
24 May 2020
See the detail: Northam on 15 January 2018.