Perth (NB) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Perth.
Climate overview of Perth
Perth, New Brunswick, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 25°C (77°F) in July, while winters cool to -6°C (21°F) in January.
The city has a wet climate, receiving around 1205 mm (47 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and very cold winters. July is the wettest month.
Perth Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Perth - and find the best time to visit.
Monthly Temperature in Perth
Depending on the time of the year, temperatures range from comfortable to very cold in Perth. On average, daytime temperatures range from a comfortable 25°C (77°F) in July to a very cold -6°C (21°F) in January.
Nighttime temperatures range from 13°C (55°F) in July to -17°C (1°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Perth
Perth has a relatively rain/snowy climate with high precipitation levels, averaging 1205 mm (47 in) of rain/snowfall annually. The wettest period in Perth occurs in July, which receives around 115 mm (4.5 in) of precipitation. During the driest month, February, Perth experiences moderate snowfall, totaling 82 mm (3.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Perth 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 Perth
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Fewest rainy days: January and February
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -17°C (1°F).
Frequently asked questions about the climate in Perth
What is the best time to visit Perth?
June, July, August and September typically offer the most optimal weather in Perth. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Perth has warm summers and very cold winters.
What temperatures can I expect in Perth?
Daytime highs range from -6°C (21°F) in January to 25°C (77°F) in July. Nighttime lows range from -17°C (1°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Perth get?
Annual rainfall is around 1205 mm (47 in). July is the wettest month with 115 mm (4.5 in), while February is the driest with 82 mm (3.2 in).
Perth 3-Day Forecast
Perth on the map
Perth is highlighted - select any city to see its climate.
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