Northam Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Northam.
Climate overview of Northam
The climate in Northam, Western Australia, Australia, is marked by large temperature swings across the seasons, ranging from 34°C (93°F) in January to 18°C (64°F) in July.
The city tends toward dry conditions, with around 377 mm (15 in) of rainfall per year. It does, however, have a distinct dry season from September to May, with very warm summers and mild winters.
Northam Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Northam - and find the best time to visit.
Monthly Temperature in Northam
In Northam, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very warm 34°C (93°F) in January to a moderate 18°C (64°F) in the coolest month, July.
Nights vary from 18°C (64°F) in January to around 7°C (45°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Northam
Northam's climate is marked by below-average rainfall, accumulating 377 mm (15 in) of precipitation yearly. The climate in Northam shows significant variation throughout the year. Expect moderate rainfall in July, the wettest month, with an average of 62 mm (2.4 in) of precipitation over 15 rainy days.
In contrast, the driest month December offers drier and sunnier days, with around 12 mm (0.5 in) of rainfall over 4 rainy days. For more details, please visit our Northam Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Northam
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, September, October and November
- Warmest weather: January and February
- Fewest rainy days: January, November and December
- Seasonal pattern: A distinct dry season from September to May, with very warm summers and mild winters
Frequently asked questions about the climate in Northam
What is the best time to visit Northam?
April, May, September, October and November typically offer the most optimal weather in Northam. In contrast, January and February tend to have less optimal conditions. Northam has a distinct dry season from September to May, with very warm summers and mild winters.
What temperatures can I expect in Northam?
Daytime highs range from 18°C (64°F) in July to 34°C (93°F) in January. Nighttime lows range from 7°C (45°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Northam get?
Annual rainfall is around 377 mm (15 in). July is the wettest month with 62 mm (2.4 in), while December is the driest with 12 mm (0.5 in).
Northam 3-Day Forecast
Northam on the map
Northam is highlighted - select any city to see its climate.
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