Climate in Nanaimo

Nanaimo, Canada has a oceanic climate. The annual average temperature is about 11.8°C and the city receives roughly 1001 mm of precipitation across 167 rainy days a year, with around 873 hours of sunshine. The warmest month is Jul (highs near 20.6°C) and the coldest is Jan (lows near 3°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Nanaimo is classified as Oceanic. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Nanaimo receives about 1001 mm of precipitation a year over roughly 167 rainy days. The wettest month is Dec and the driest is Jun.

Nanaimo sees an estimated 873 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Nanaimo are Jul, Jun, May. Conditions vary year to year — verify with a current forecast before booking.

Nanaimo has a climate comfort score of 64/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.