Guildford, Canada — Weather in May 2027

Climate Overview

Guildford, Canada in May has mild conditions, with highs averaging 18.3°C (65°F) and noticeably cooler mornings. Rain falls on about 12 days this month. Temperatures drop noticeably between day and night. Sea temperature stays cool at 15°C (59°F).

This month falls at the end of Spring.

Daily highs in May gradually rise from around 17°C (63°F) at the start to 19°C (67°F) by month's end.

May sees fairly even rainfall, totalling about 117 mm across the month.

Expect around 10.0h of sunshine at the start of May, increasing to 11.3h by the end.

The warmest days tend to fall around the 12th, averaging 19.6°C (67°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

18°C / 8°C

Feels Like

18°C / 6°C

Rain

12 days · 116 mm

Sunshine

10.9h / day

Humidity

75% — Humid

Wind

10 km/h

Wind Direction

SSW (198°)

Gusts

31 km/h

Daylight

15.3 h

Cloud Cover

64%

Clear Sky Days

3.3

UV Index

5.6 — High

Sea Temperature

15°C

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 05:30

Daylight 15.3h

Sunset 20:48

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	6°C / 0°C	3°C / -4°C	19days (344 mm) Wet	3.7h Poor	88% Very Muggy	1.1 Low	Wet	View Details
February	6°C / -1°C	3°C / -4°C	18days (215 mm) Wet	5.2h Fair	82% Humid	1.9 Low	Wet	View Details
March	10°C / 1°C	7°C / -2°C	19days (250 mm) Wet	7h Good	83% Humid	3 Moderate	Wet	View Details
April	14°C / 4°C	12°C / 1°C	17days (191 mm) Wet	9h Good	79% Humid	4.7 Moderate	Wet	View Details
May	18°C / 8°C	18°C / 6°C	12days (116 mm) Wet	10.9h Excellent	75% Muggy	5.6 High	Good	View Details
June best	21°C / 11°C	21°C / 10°C	13days (109 mm) Wet	11.7h Excellent	75% Muggy	6.2 High	Excellent	View Details
July best	24°C / 14°C	25°C / 14°C	6days (44 mm) Good	13h Excellent	70% Muggy	6.7 High	Excellent	View Details
August best	25°C / 14°C	26°C / 15°C	7days (53 mm) Good	11.7h Excellent	73% Muggy	5.7 High	Excellent	View Details
September best	21°C / 12°C	21°C / 11°C	12days (172 mm) Wet	9h Good	81% Humid	4.3 Moderate	Excellent	View Details
October	14°C / 7°C	13°C / 5°C	18days (298 mm) Wet	6.1h Fair	86% Very Muggy	2.5 Moderate	Wet	View Details
November	9°C / 3°C	7°C / 0°C	20days (397 mm) Wet	3.9h Poor	89% Very Muggy	1.3 Low	Wet	View Details
December	5°C / 0°C	2°C / -4°C	21days (348 mm) Wet	3h Poor	89% Very Muggy	0.8 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.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

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 Guildford?

May is typically good for visiting Guildford, with average highs of 18°C (65°F) and around 12 rainy days. Guildford, Canada in May has mild conditions, with highs averaging 18.3°C (65°F) and noticeably cooler mornings. Rain fa

Does it rain a lot in Guildford in May?

Guildford typically sees around 12 rainy days in May with 116 mm (4.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Guildford in May?

Nights in Guildford during May are cool at around 8°C (46°F). Bring a jacket or sweater for evenings.

What should I pack for Guildford in May?

With highs of 18°C (65°F) and lows of 8°C (46°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 Guildford?

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

What is the UV index in Guildford in May?

The average UV index in Guildford 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 Guildford in May?

Guildford gets approximately 15 hours of daylight per day in May, with around 11 hours of sunshine.

Does it snow in Guildford in May?

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

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