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Nanaimo

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Nanaimo Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Nanaimo year round climate

  • Spring (March–May): Average 5–12°C, mild but still humid with occasional showers. March and April still have more rainfall, gradually clearing up in May. Popular activities: Outdoor walks, flower viewing, exploring nearby nature parks. Suggested clothing: Lightweight waterproof jacket, comfortable long pants, warm base layers.
  • Summer (June–August): Average 15–20°C, warm and comfortable with less rainfall and abundant sunshine. July and August are the warmest months, ideal for outdoor activities. Popular activities: Beach activities, boating, hiking, camping. Suggested clothing: Short-sleeved T-shirts, shorts, lightweight sun protection clothing, sandals.
  • Autumn (September–November): Average 10–16°C, cool and pleasant with increasing rainfall and more variable weather. October and November have more rainfall, so keep warm. Popular activities: Leaf peeping, trying local cuisine, visiting museums. Suggested clothing: Lightweight jacket, long-sleeved shirts, comfortable trousers.
  • Winter (December–February): Average 3–5°C, cold and humid with more rainfall and frequent overcast days. January is the rainiest month. Popular activities: Indoor activities, visiting art galleries, enjoying hot drinks. Suggested clothing: Warm jacket, waterproof jacket, scarf, hat, gloves.

Nanaimo climatological average

Annual average temperature: approx. 9.8°C / Annual rainfall: approx. 1120 mm / Summer humidity: 65%–75% / Rainiest month: January

Nanaimo monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
3.2°C
210.8
February
3.3°C
71.2
March
5°C
90.4
April
6.6°C
91.5
May
11.7°C
53.3
June
14.7°C
52.7
July
19°C
23.4
August
19.3°C
17.3
September
15°C
38.3
October
10.7°C
121.5
November
4.8°C
141
December
4.7°C
208.8

Nanaimo weather for the next seven days

12/21
Sunday
Moderate rain
7.4°C/1.8°C
12/22
Monday
Heavy rain
5.5°C/2.8°C
12/23
Tuesday
Moderate rain
6.6°C/-1.3°C
12/24
Wednesday
Light freezing rain
3°C/-1.5°C
12/25
Thursday
Partly Cloudy
2.2°C/-3.4°C
12/26
Friday
Partly Cloudy
3.2°C/0.9°C
12/27
Saturday
Cloudy
3.6°C/1°C