June is one of the warmer months of the year in Nanaimo, with average highs near 18.9°C and lows around 10.9°C (mean 14.9°C). It is one of the drier months, averaging 42 mm of rainfall and 75% relative humidity across the period.
June is one of the warmer months of the year in Nanaimo. Across 45 years of records, the warmest June in Nanaimo was 2015 — when the month averaged 18.1°C — while the coldest was 1981 at 12.8°C. Typical June days reach 18.9°C with nights near 10.9°C. The long-term trend is warming, about 0.3°C per decade.
June is one of the drier months in Nanaimo, averaging 42 mm of rainfall. The wettest June on record was 1981 with 88 mm, while the driest was 2009 at 11 mm.
Relative humidity in Nanaimo during June averages 75%. The most humid June was 2022 at 80%, and the least humid was 2009 at 68%.
June receives about 5.5 kWh/m²/day of solar energy in Nanaimo. The sunniest June was 2015 at 7.1 kWh/m²/day, and the cloudiest was 2012 at 4.4.
Average wind speed in Nanaimo during June is 1.3 m/s. The windiest June was 1981 at 1.6 m/s, while the calmest was 1982 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.4°C | 14.6°C | 15.2°C | 15.2°C | 15.4°C | +1°C |
| Avg High | 18.5°C | 18.4°C | 19.2°C | 19.2°C | 19.5°C | +1°C |
| Avg Low | 10.3°C | 10.8°C | 11.1°C | 11.2°C | 11.3°C | +1°C |
| Avg Rain | 45 mm | 51 mm | 37 mm | 38 mm | 40 mm | -4 mm |
June temperatures in Nanaimo have risen by about 1.4°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 5.7°C (1984) to a record high of 40.1°C (2021).
Rainfall in June is one of the drier months, averaging 42 mm, with a wettest year of 88 mm.
One of the best times to visit Nanaimo
June is one of the best times to visit Nanaimo. Expect days averaging 18.9°C and nights around 10.9°C (mean 14.9°C) — warmer than Nanaimo's yearly average — with moderate rainfall (42 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 18.4°C | 14.7°C | 11.0°C | 26.1°C | 8.1°C | 25 mm | 79% | 1.3 m/s | 5.8 |
| 2024 | 18.4°C | 14.3°C | 10.3°C | 25.5°C | 8.0°C | 40 mm | 75% | 1.4 m/s | 5.5 |
| 2023 | 20.9°C | 16.3°C | 11.6°C | 27.3°C | 8.5°C | 29 mm | 72% | 1.4 m/s | 6.4 |
| 2022 | 18.3°C | 14.6°C | 10.9°C | 28.2°C | 8.2°C | 60 mm | 80% | 1.3 m/s | 5 |
| 2021 | 22.5°C | 17.9°C | 13.2°C | 40.1°C | 7.0°C | 34 mm | 70% | 1.3 m/s | 6.5 |
| 2020 | 18.5°C | 14.8°C | 11.0°C | 24.6°C | 8.2°C | 54 mm | 77% | 1.4 m/s | 4.9 |
| 2019 | 20.4°C | 16.2°C | 12.1°C | 25.7°C | 8.0°C | 37 mm | 71% | 1.3 m/s | 6.1 |
| 2018 | 18.8°C | 14.9°C | 11.1°C | 28.9°C | 7.5°C | 36 mm | 75% | 1.4 m/s | 5 |
| 2017 | 19.5°C | 15.4°C | 11.3°C | 31.1°C | 8.3°C | 38 mm | 75% | 1.3 m/s | 5.8 |
| 2016 | 19.7°C | 15.7°C | 11.6°C | 30.4°C | 7.7°C | 54 mm | 75% | 1.3 m/s | 5.7 |
| 2015 🔥 | 22.9°C | 18.1°C | 13.3°C | 28.1°C | 9.8°C | 16 mm | 69% | 1.4 m/s | 7.1 |
| 2014 | 19.4°C | 15.4°C | 11.4°C | 22.2°C | 9.0°C | 23 mm | 75% | 1.3 m/s | 5.8 |
| 2013 | 19.1°C | 15.2°C | 11.4°C | 29.3°C | 8.3°C | 47 mm | 78% | 1.2 m/s | 5.2 |
| 2012 | 16.6°C | 13.2°C | 9.7°C | 22.1°C | 7.0°C | 67 mm | 78% | 1.4 m/s | 4.4 |
| 2011 | 17.6°C | 13.8°C | 10.1°C | 21.1°C | 8.7°C | 24 mm | 78% | 1.3 m/s | 4.9 |
| 2010 | 17.5°C | 13.8°C | 10.1°C | 22.9°C | 6.3°C | 34 mm | 76% | 1.3 m/s | 5 |
| 2009 | 21.3°C | 16.7°C | 12.1°C | 29.6°C | 9.2°C | 11 mm | 68% | 1.2 m/s | 6.1 |
| 2008 | 17.9°C | 13.7°C | 9.5°C | 28.8°C | 6.8°C | 32 mm | 74% | 1.3 m/s | 5 |
| 2007 | 17.3°C | 13.7°C | 10.2°C | 25.7°C | 7.3°C | 56 mm | 77% | 1.4 m/s | 4.7 |
| 2006 | 19.8°C | 15.8°C | 11.9°C | 27.2°C | 9.7°C | 39 mm | 76% | 1.2 m/s | 6 |
| 2005 | 18.3°C | 14.8°C | 11.3°C | 23.9°C | 7.9°C | 75 mm | 78% | 1.3 m/s | 4.6 |
| 2004 | 21.5°C | 16.9°C | 12.3°C | 29.8°C | 8.1°C | 22 mm | 70% | 1.2 m/s | 6.5 |
| 2003 | 20.8°C | 16.4°C | 12.1°C | 27.8°C | 9.2°C | 12 mm | 71% | 1.3 m/s | 6.1 |
| 2002 | 19.7°C | 15.4°C | 11.0°C | 29.4°C | 6.5°C | 30 mm | 75% | 1.4 m/s | 6.2 |
| 2001 | 17.0°C | 13.5°C | 9.9°C | 22.6°C | 6.7°C | 42 mm | 75% | 1.3 m/s | 5.4 |
| 2000 | 18.6°C | 14.7°C | 10.8°C | 29.0°C | 7.2°C | 52 mm | 77% | 1.4 m/s | 5.6 |
| 1999 | 16.5°C | 13.1°C | 9.7°C | 28.2°C | 6.6°C | 54 mm | 79% | 1.4 m/s | 5.6 |
| 1998 | 20.0°C | 15.9°C | 11.8°C | 26.6°C | 9.3°C | 33 mm | 77% | 1.2 m/s | 5.6 |
| 1997 | 18.1°C | 14.5°C | 10.9°C | 23.5°C | 8.0°C | 79 mm | 79% | 1.4 m/s | 5.2 |
| 1996 | 17.6°C | 13.7°C | 9.7°C | 21.5°C | 7.1°C | 18 mm | 76% | 1.4 m/s | 5.7 |
| 1995 | 19.9°C | 15.8°C | 11.8°C | 29.9°C | 9.1°C | 47 mm | 72% | 1.4 m/s | 5.7 |
| 1994 | 17.8°C | 14.1°C | 10.3°C | 24.1°C | 7.4°C | 51 mm | 75% | 1.3 m/s | 5 |
| 1993 | 18.6°C | 14.9°C | 11.3°C | 24.4°C | 8.5°C | 57 mm | 76% | 1.5 m/s | 5 |
| 1992 | 20.6°C | 16.5°C | 12.4°C | 27.5°C | 9.0°C | 51 mm | 75% | 1.3 m/s | 5.8 |
| 1991 | 17.1°C | 13.4°C | 9.7°C | 23.0°C | 6.4°C | 44 mm | 78% | 1.4 m/s | 5 |
| 1990 | 18.1°C | 14.3°C | 10.6°C | 26.7°C | 7.7°C | 77 mm | 78% | 1.4 m/s | 5 |
| 1989 | 20.0°C | 15.7°C | 11.3°C | 28.1°C | 7.7°C | 49 mm | 75% | 1.3 m/s | 5.9 |
| 1988 | 17.6°C | 13.4°C | 9.2°C | 25.3°C | 5.8°C | 36 mm | 75% | 1.2 m/s | 5.3 |
| 1987 | 19.6°C | 14.8°C | 10.1°C | 29.7°C | 5.7°C | 17 mm | 75% | 1.2 m/s | 5.8 |
| 1986 | 19.2°C | 14.9°C | 10.7°C | 25.8°C | 7.5°C | 37 mm | 75% | 1.2 m/s | 5.2 |
| 1985 | 17.9°C | 13.9°C | 9.8°C | 26.4°C | 7.2°C | 36 mm | 73% | 1.4 m/s | 5.6 |
| 1984 | 17.4°C | 13.4°C | 9.4°C | 22.2°C | 5.7°C | 49 mm | 78% | 1.3 m/s | 5.2 |
| 1983 | 17.5°C | 14.0°C | 10.6°C | 22.8°C | 8.3°C | 53 mm | 78% | 1.4 m/s | — |
| 1982 | 21.1°C | 16.7°C | 12.3°C | 30.9°C | 8.2°C | 37 mm | 73% | 1.1 m/s | — |
| 1981 ❄️ 🌧️ | 16.2°C | 12.8°C | 9.4°C | 22.3°C | 7.5°C | 88 mm | 79% | 1.6 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 18.9°C with lows near 10.9°C (mean 14.9°C), based on 45 years of NASA POWER data.
June averages 42 mm of rainfall in Nanaimo, one of the drier months. The wettest on record was 88 mm in 1981.
The hottest June reached 40.1°C in 2021. The coldest dipped to 5.7°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.4°C. Daytime highs moved from 18°C to 19.7°C and overnight lows from 10.3°C to 11.4°C over the same span.
June is one of the warmer months of the year in Nanaimo and one of the drier months, so plan for around 18.9°C daytime highs and 10.9°C at night.
Not quite — June is the 9th coolest month in Nanaimo, averaging 14.9°C.
For June in Nanaimo, pack light layers you can adjust through the day, with typical highs of 18.9°C and lows of 10.9°C.
Relative humidity in June averages 75% — quite humid.
Average wind speed in June is 1.3 m/s. The windiest June on record averaged 1.6 m/s (1981).
The wettest June on record was 1981 with 88 mm. On average, June sees 42 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Nanaimo behaves each June, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for June specifically, along with year-by-year records and how the month has changed over the decades.
