Chemainus, Canada — Weather in May 2027

Climate Overview

Chemainus, Canada in May has mild conditions, with highs averaging 18.6°C (65°F) and noticeably cooler mornings. Rain falls on about 11 days this month.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 17°C (63°F) at the start to 20°C (68°F) by month's end.

Rainfall is heaviest during the middle of the month, while the first third tends to be drier.

Expect around 10.4h of sunshine at the start of May, increasing to 11.8h by the end.

The warmest days tend to fall around the 29th, averaging 20°C (68°F).

Compared to April, this month is about 5°C warmer with 5 fewer rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

19°C / 9°C

Feels Like

18°C / 8°C

Rain

11 days · 61 mm

Sunshine

11.6h / day

Humidity

72% — Humid

Wind

10 km/h

Wind Direction

WSW (255°)

Gusts

31 km/h

Daylight

15.3 h

Cloud Cover

61%

Clear Sky Days

4.3

UV Index

6 — High

Dew Point

9°C — Dry

Moon Phase

Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:34

Daylight 15.3h

Sunset 20:51

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	6°C / 1°C	4°C / -2°C	17days (207 mm) Wet	3.8h Poor	88% Very Muggy	1.2 Low	Wet	View Details
February	7°C / 1°C	4°C / -3°C	14days (115 mm) Wet	5.4h Fair	82% Humid	1.8 Low	Poor	View Details
March	10°C / 2°C	7°C / -1°C	17days (126 mm) Wet	7.3h Good	82% Humid	3.1 Moderate	Poor	View Details
April	14°C / 5°C	12°C / 3°C	16days (101 mm) Wet	9.3h Good	76% Humid	4.7 Moderate	Fair	View Details
May	19°C / 9°C	18°C / 8°C	11days (61 mm) Wet	11.6h Excellent	72% Muggy	6 High	Good	View Details
June best	21°C / 12°C	21°C / 11°C	10days (55 mm) Wet	12.5h Excellent	69% Muggy	6.5 High	Excellent	View Details
July best	26°C / 15°C	26°C / 15°C	5days (22 mm) Good	13.5h Excellent	66% Muggy	6.9 High	Excellent	View Details
August best	26°C / 16°C	27°C / 16°C	5days (25 mm) Good	12.2h Excellent	67% Muggy	5.9 High	Excellent	View Details
September best	21°C / 13°C	21°C / 12°C	10days (84 mm) Wet	9.4h Good	76% Humid	4.4 Moderate	Excellent	View Details
October	14°C / 8°C	13°C / 6°C	14days (144 mm) Wet	6.4h Fair	84% Humid	2.6 Moderate	Fair	View Details
November	9°C / 4°C	7°C / 2°C	18days (211 mm) Wet	4.1h Fair	89% Very Muggy	1.4 Low	Wet	View Details
December	6°C / 1°C	3°C / -2°C	19days (201 mm) Wet	3.2h Poor	89% Very Muggy	0.9 Low	Wet	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm evening layerUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Chemainus?

May is typically good for visiting Chemainus, with average highs of 19°C (65°F) and around 11 rainy days. Chemainus, Canada in May has mild conditions, with highs averaging 18.6°C (65°F) and noticeably cooler mornings. Rain fa

Does it rain a lot in Chemainus in May?

Chemainus typically sees around 11 rainy days in May with 61 mm (2.4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Chemainus in May?

Nights in Chemainus during May are cool at around 9°C (49°F). Bring a jacket or sweater for evenings.

What should I pack for Chemainus in May?

With highs of 19°C (65°F) and lows of 9°C (49°F) in May, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

Is May among the best months weather-wise in Chemainus?

May is not the most favourable month weather-wise in Chemainus. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Chemainus in May?

The average UV index in Chemainus during May is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Chemainus in May?

Chemainus gets approximately 15 hours of daylight per day in May, with around 12 hours of sunshine.

Does it snow in Chemainus in May?

Snow is uncommon in Chemainus during May based on 10-year climate averages.

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