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Weather in Chemainus
British Columbia, 40 m · continuously updated
North Cowichan (10 km) · 1 °C · ECCC 06:00
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Temperature · last 4 and next 28 hours
Chemainus weather: the next 24 hours
Updated hourly.
Chemainus 14-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around Chemainus
Neighbouring towns, as the crow flies.
Official weather warnings
- Yellow — Other (from 01 Nov 22:38 to 04 Nov 03:38) Full official text
Data Source: Environment and Climate Change Canada, under the Data Services End-use Licence. Warnings are shown unaltered; this site is not endorsed by Environment and Climate Change Canada.
Is there an active weather warning for Chemainus?
Yes: Yellow warning (Other).
Latest measurement near Chemainus
Measured at North Cowichan, 10 km away from Chemainus, November 2, 06:00 MST. This Environment and Climate Change Canada weather station is at an elevation of 47 m (British Columbia). These are measured values, not a forecast.
| Temperature | 1.2 °C |
|---|---|
| Wind | 0 km/h |
| Gusts, last hour | — |
| Precipitation, last hour | 0.0 mm |
| Humidity | 100 % |
| Pressure (sea level) | 1024 hPa |
Past 24 hours: low -1.3 °C, high 11.2 °C, 0.0 mm of precipitation.
Chemainus lies at about 40 m; the station is at 47 m.
Latest measurements from the Canadian weather stations
Data Source: Environment and Climate Change Canada. Reports are published as measured, without quality control, and may contain errors or gaps. Not an official product of the Government of Canada and not endorsed by it. Data Services End-use Licence
The observed climate near Chemainus
The weather station nearest to Chemainus, Saltspring located 46 m above sea level, is 13 km away; its records cover 1910–2020. In November, the mean temperature there is 6.9 °C over 1991–2020, 0.6 °C more than over 1961–1990 (6.3 °C), with about 175 mm of rain. The warmest month ever measured is July 2018 (20.9 °C), the coldest January 1950 (−4.7 °C). See the full series of Saltspring
Today in Chemainus
- No washing outside today: the air is too cold or too damp to dry anything before evening (maximum drying power of 7.4 hPa per hour). How it is calculated
- Best time to air the house: between 6:00 and 9:00. The outdoor dew point drops to 0.6 °C; once warmed to 20 °C, that air holds only 27 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Terrace and barbecue between 18:00 and 23:00: dry but cool, 7 °C at 8 pm and wind at 3 km/h. Wrap up warm, or move indoors. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-02 08:13 (local time): model values, not measurements. All of today's advice
7-day forecast for Chemainus
Today (Monday 2 Nov) in Chemainus: light drizzle, 3 to 11 °C, precipitation 0.4 mm (10 %), wind up to 9 km/h. Tomorrow: overcast, 6 to 13 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | light drizzle | 3 °C | 11 °C | 0.4 mm | 9 km/h |
| Tomorrow | overcast | 6 °C | 13 °C | 0.0 mm | 10 km/h |
| Wed 4 Nov | light rain | 6 °C | 10 °C | 3.8 mm | 15 km/h |
| Thu 5 Nov | overcast | 6 °C | 10 °C | 0.0 mm | 10 km/h |
| Fri 6 Nov | heavy drizzle | 8 °C | 11 °C | 4.2 mm | 19 km/h |
| Sat 7 Nov | light rain | 8 °C | 11 °C | 9.6 mm | 18 km/h |
| Sun 8 Nov | light rain | 6 °C | 12 °C | 4.8 mm | 15 km/h |
Tomorrow's weather in Chemainus
Tomorrow, Tuesday 3 Nov, in Chemainus: overcast, from 6 to 13 °C, 0.0 mm of precipitation (probability 20 %), wind up to 10 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 7 °C | 0.0 mm | 13 % | 8 km/h |
| 03:00 | overcast | 8 °C | 0.0 mm | 15 % | 1 km/h |
| 06:00 | overcast | 6 °C | 0.0 mm | 19 % | 10 km/h |
| 09:00 | overcast | 9 °C | 0.0 mm | 14 % | 4 km/h |
| 12:00 | overcast | 12 °C | 0.0 mm | 10 % | 0 km/h |
| 15:00 | overcast | 12 °C | 0.0 mm | 10 % | 2 km/h |
| 18:00 |  mostly sunny | 9 °C | 0.0 mm | 0 % | 6 km/h |
| 21:00 | sunny | 8 °C | 0.0 mm | 0 % | 4 km/h |
Frequently asked questions
Will it rain tomorrow in Chemainus?
No significant rain expected (0.0 mm forecast).
How warm will it be tomorrow in Chemainus?
Between 6 and 13 °C.
The weekend
This weekend in Chemainus: Saturday light rain, 8 to 11 °C, Sunday light rain, 6 to 12 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov |  light rain | 8 °C | 11 °C | 9.6 mm | 18 km/h |
| Sun 8 Nov | light rain | 6 °C | 12 °C | 4.8 mm | 15 km/h |
Hour by hour
The next 48 hours in Chemainus, hour by hour: temperature from 4 to 13 °C, 0.4 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 08:00 |  partly cloudy | 4 °C | 0.0 mm | 1 % | 9 km/h |
| 09:00 | overcast | 6 °C | 0.0 mm | 1 % | 7 km/h |
| 10:00 | overcast | 8 °C | 0.0 mm | 1 % | 8 km/h |
| 11:00 | overcast | 9 °C | 0.0 mm | 1 % | 7 km/h |
| 12:00 | overcast | 10 °C | 0.0 mm | 3 % | 6 km/h |
| 13:00 | overcast | 10 °C | 0.0 mm | 3 % | 6 km/h |
| 14:00 | overcast | 11 °C | 0.0 mm | 5 % | 5 km/h |
| 15:00 | overcast | 10 °C | 0.0 mm | 4 % | 4 km/h |
| 16:00 | overcast | 10 °C | 0.0 mm | 5 % | 4 km/h |
| 17:00 | overcast | 8 °C | 0.0 mm | 6 % | 2 km/h |
| 18:00 | overcast | 8 °C | 0.0 mm | 5 % | 2 km/h |
| 19:00 | overcast | 7 °C | 0.0 mm | 4 % | 2 km/h |
| 20:00 | overcast | 7 °C | 0.0 mm | 4 % | 3 km/h |
| 21:00 | overcast | 7 °C | 0.0 mm | 4 % | 4 km/h |
| 22:00 | overcast | 8 °C | 0.0 mm | 10 % | 3 km/h |
| 23:00 |  light drizzle | 8 °C | 0.4 mm | 10 % | 7 km/h |
| 00:00 | overcast | 7 °C | 0.0 mm | 13 % | 8 km/h |
| 01:00 | overcast | 7 °C | 0.0 mm | 13 % | 8 km/h |
| 02:00 | overcast | 8 °C | 0.0 mm | 12 % | 7 km/h |
| 03:00 | overcast | 8 °C | 0.0 mm | 15 % | 1 km/h |
| 04:00 | overcast | 7 °C | 0.0 mm | 20 % | 4 km/h |
| 05:00 | overcast | 7 °C | 0.0 mm | 17 % | 4 km/h |
| 06:00 | overcast | 6 °C | 0.0 mm | 19 % | 10 km/h |
| 07:00 | overcast | 7 °C | 0.0 mm | 17 % | 6 km/h |
| 08:00 | overcast | 8 °C | 0.0 mm | 14 % | 6 km/h |
| 09:00 | overcast | 9 °C | 0.0 mm | 14 % | 4 km/h |
| 10:00 | overcast | 10 °C | 0.0 mm | 14 % | 5 km/h |
| 11:00 | overcast | 11 °C | 0.0 mm | 10 % | 1 km/h |
| 12:00 | overcast | 12 °C | 0.0 mm | 10 % | 0 km/h |
| 13:00 | overcast | 13 °C | 0.0 mm | 10 % | 2 km/h |
| 14:00 | overcast | 13 °C | 0.0 mm | 10 % | 2 km/h |
| 15:00 | overcast | 12 °C | 0.0 mm | 10 % | 2 km/h |
| 16:00 | partly cloudy | 12 °C | 0.0 mm | 10 % | 4 km/h |
| 17:00 | overcast | 10 °C | 0.0 mm | 0 % | 5 km/h |
| 18:00 | mostly sunny | 9 °C | 0.0 mm | 0 % | 6 km/h |
| 19:00 | sunny | 9 °C | 0.0 mm | 0 % | 6 km/h |
| 20:00 | sunny | 8 °C | 0.0 mm | 0 % | 8 km/h |
| 21:00 | sunny | 8 °C | 0.0 mm | 0 % | 4 km/h |
| 22:00 | sunny | 7 °C | 0.0 mm | 0 % | 4 km/h |
| 23:00 | partly cloudy | 6 °C | 0.0 mm | 0 % | 4 km/h |
| 00:00 | partly cloudy | 6 °C | 0.0 mm | 0 % | 1 km/h |
| 01:00 | sunny | 6 °C | 0.0 mm | 0 % | 2 km/h |
| 02:00 | sunny | 6 °C | 0.0 mm | 0 % | 3 km/h |
| 03:00 | sunny | 6 °C | 0.0 mm | 0 % | 4 km/h |
| 04:00 | overcast | 8 °C | 0.0 mm | 0 % | 6 km/h |
| 05:00 | overcast | 7 °C | 0.0 mm | 0 % | 6 km/h |
| 06:00 | partly cloudy | 7 °C | 0.0 mm | 0 % | 7 km/h |
| 07:00 | overcast | 6 °C | 0.0 mm | 0 % | 8 km/h |
Location of Chemainus
Chemainus lies at 40 m, 212 m below the average of the 147 places we cover in British Columbia (252 m). That makes it the 47th lowest of the 147. The main town, Vancouver, lies 57 km to the north-east. The nearest places we cover are Saltair (5 km to the north-west), North Cowichan (9 km to the south), Ladysmith (11 km to the north-west) and Maple Bay (13 km to the south-east). With about 3,021 inhabitants according to GeoNames, Chemainus is the 117th largest of the 147 places we cover in British Columbia.
Today is close to the November normal (8.6 °C).
Climate of Chemainus: 1991–2020 normals
In Chemainus, August is typically the warmest month (up to 24.3 °C on average), while December is the coldest at 1.3 °C. November sees the most rain, with around 195 mm.
By season (average highs, 1991–2020 normals): winter 6.4 °C and 516 mm of rain, spring 13.4 °C and 314 mm, summer 22.9 °C and 138 mm, autumn 14.4 °C and 388 mm. The wettest season is winter (38 % of the annual total), the driest summer (10 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | 6.1 | 1.4 | 195 | 17 |
| February | 7.6 | 1.5 | 125 | 14 |
| March | 9.7 | 2.7 | 141 | 17 |
| April | 13.0 | 4.9 | 102 | 15 |
| May | 17.5 | 8.6 | 72 | 12 |
| June | 20.3 | 11.5 | 62 | 11 |
| July | 24.1 | 14.2 | 36 | 6 |
| August | 24.3 | 14.5 | 39 | 6 |
| September | 20.6 | 11.9 | 62 | 8 |
| October | 14.0 | 7.6 | 131 | 14 |
| November | 8.6 | 3.8 | 195 | 18 |
| December | 5.6 | 1.3 | 195 | 17 |
Compared with Vancouver, the main town 57 km to the north-east, highs in the warmest month are 0.8 °C higher here, and the year brings 909 mm less precipitation. In no month does the average low fall below 0 °C; in 4 months the average high exceeds 20 °C (June, July, August and September).
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: North Cowichan (9 km to the south): summers 0.1 °C warmer and 65 mm wetter a year; Maple Bay (13 km to the south-east): summers 0.7 °C cooler and 198 mm drier a year; Lake Cowichan (27 km to the west): summers 1.0 °C warmer and 463 mm wetter a year. Among the 147 places we cover in British Columbia whose normals come from the ERA5 reanalysis, Chemainus ranks 63rd for summer warmth and 73rd for annual precipitation. The warmest summers are in Osoyoos and the coolest in Prince Rupert; the wettest year is in Tofino and the driest in Hanceville.
What is the warmest month in Chemainus?
The warmest month in Chemainus is typically August, averaging 24.3 °C (1991–2020 normal). The coldest is December, at 1.3 °C.
How many rainy days does Chemainus get per year?
Chemainus sees about 158 rainy days a year, adding up to roughly 1356 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Chemainus?
Between August and December, the temperature gap in Chemainus runs to about 23.0 °C, based on the 1991–2020 normals.