Stanstead, Canada — Weather in May 2027

Climate Overview

Stanstead, Canada in May has mild conditions, with highs averaging 17.4°C (63°F) and noticeably cooler mornings. Rain falls on about 13 days this month. Temperatures drop noticeably between day and night.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 14°C (57°F) at the start to 21°C (70°F) by month's end.

May sees fairly even rainfall, totalling about 99 mm across the month.

Expect around 6.3h of sunshine at the start of May, increasing to 10.9h by the end.

The warmest days tend to fall around the 28th, averaging 21.4°C (71°F).

Compared to April, this month is about 8°C warmer with 2 fewer rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

17°C / 7°C

Feels Like

16°C / 5°C

Rain

13 days · 101 mm

Sunshine

9.6h / day

Humidity

71% — Humid

Wind

16 km/h

Wind Direction

WSW (240°)

Gusts

41 km/h

Daylight

14.9 h

Cloud Cover

66%

Clear Sky Days

3.6

UV Index

5.4 — High

Dew Point

7°C — Dry

Moon Phase

Waxing Gibbous · 66%

Snow Days

1 days · 1.3 cm

Frost Days

1 days

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 05:21

Daylight 14.8h

Sunset 20:11

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	-4°C / -12°C	-8°C / -17°C	14days (82 mm) Wet	4.9h Fair	79% Humid	1.8 Low	Poor	View Details
February	-2°C / -11°C	-6°C / -16°C	13days (78 mm) Wet	6h Fair	75% Muggy	2.9 Moderate	Poor	View Details
March	3°C / -6°C	-1°C / -11°C	14days (90 mm) Wet	7.1h Good	72% Muggy	3.8 Moderate	Poor	View Details
April	10°C / 0°C	6°C / -4°C	15days (108 mm) Wet	7.9h Good	70% Muggy	4.9 Moderate	Poor	View Details
May best	17°C / 7°C	16°C / 5°C	13days (101 mm) Wet	9.6h Good	71% Muggy	5.4 High	Good	View Details
June best	22°C / 13°C	22°C / 12°C	15days (129 mm) Wet	10.6h Excellent	75% Muggy	6.2 High	Good	View Details
July best	25°C / 16°C	26°C / 17°C	15days (126 mm) Wet	11.4h Excellent	79% Humid	6.8 High	Excellent	View Details
August best	23°C / 15°C	24°C / 15°C	14days (115 mm) Wet	10.5h Excellent	79% Humid	5.9 High	Excellent	View Details
September best	20°C / 12°C	20°C / 11°C	9days (85 mm) Wet	8.9h Good	79% Humid	4.9 Moderate	Excellent	View Details
October	13°C / 6°C	11°C / 3°C	14days (125 mm) Wet	6.2h Fair	79% Humid	3.2 Moderate	Fair	View Details
November	5°C / -2°C	1°C / -6°C	14days (99 mm) Wet	4.9h Fair	79% Humid	1.9 Low	Poor	View Details
December	-1°C / -9°C	-5°C / -14°C	14days (95 mm) Wet	4.3h Fair	78% Humid	1.5 Low	Poor	View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

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

Layered clothingLight jacketUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Stanstead?

May is typically good for visiting Stanstead, with average highs of 17°C (63°F) and around 13 rainy days. Stanstead, Canada in May has mild conditions, with highs averaging 17.4°C (63°F) and noticeably cooler mornings. Rain fa

Does it rain a lot in Stanstead in May?

Stanstead typically sees around 13 rainy days in May with 101 mm (4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Stanstead in May?

Nights in Stanstead during May are cool at around 7°C (45°F). Bring a jacket or sweater for evenings.

What should I pack for Stanstead in May?

With highs of 17°C (63°F) and lows of 7°C (45°F) in May, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

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

Yes, May offers some of the best weather conditions in Stanstead with comfortable temperatures and lower chances of rain.

What is the UV index in Stanstead in May?

The average UV index in Stanstead during May is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.

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

Stanstead gets approximately 15 hours of daylight per day in May, with around 10 hours of sunshine.

Does it snow in Stanstead in May?

Yes, Stanstead typically sees around 1 snow days in May with roughly 1 cm (1 in) of snowfall.

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