Windham, United States — Weather in May 2027

Climate Overview

Windham, United States in May has mild conditions, with highs averaging 20°C (68°F) and noticeably cooler mornings. Rain falls on about 12 days this month.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 18°C (64°F) at the start to 23°C (73°F) by month's end.

May sees fairly even rainfall, totalling about 107 mm across the month.

Expect around 7.3h of sunshine at the start of May, increasing to 9.2h by the end.

The warmest days tend to fall around the 27th, averaging 23.2°C (74°F).

Compared to April, this month is about 6°C warmer with 0 fewer rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

20°C / 10°C

Feels Like

20°C / 8°C

Rain

12 days · 107 mm

Sunshine

9.3h / day

Humidity

73% — Humid

Wind

16 km/h

Wind Direction

WSW (244°)

Gusts

40 km/h

Daylight

14.6 h

Cloud Cover

66%

Clear Sky Days

3.3

UV Index

6.2 — High

Dew Point

10°C — Comfortable

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 14.5h

Sunset 20:02

What to Expect

Daytime temperatures around 20°C (68°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain usually comes in shorter passing showers rather than all-day rain.

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	3°C / -4°C	-1°C / -9°C	9days (90 mm) Wet	5.9h Fair	68% Muggy	2.2 Moderate	Poor	View Details
February	5°C / -3°C	1°C / -8°C	10days (84 mm) Wet	6.7h Fair	70% Muggy	3.3 Moderate	Poor	View Details
March	9°C / 0°C	6°C / -5°C	11days (98 mm) Wet	8h Good	66% Muggy	4.4 Moderate	Poor	View Details
April	15°C / 5°C	12°C / 1°C	12days (104 mm) Wet	8.5h Good	68% Muggy	5.2 High	Fair	View Details
May	20°C / 10°C	20°C / 8°C	12days (107 mm) Wet	9.3h Good	73% Muggy	6.2 High	Good	View Details
June best	26°C / 16°C	27°C / 15°C	11days (82 mm) Wet	10.7h Excellent	72% Muggy	6.9 High	Excellent	View Details
July best	29°C / 20°C	31°C / 21°C	13days (129 mm) Wet	10.9h Excellent	76% Humid	7 High	Good	View Details
August best	28°C / 19°C	30°C / 20°C	11days (100 mm) Wet	10.2h Excellent	75% Muggy	6.5 High	Excellent	View Details
September best	24°C / 15°C	24°C / 15°C	10days (104 mm) Wet	8.3h Good	77% Humid	5.1 High	Excellent	View Details
October best	18°C / 10°C	16°C / 8°C	10days (105 mm) Wet	7h Good	77% Humid	3.9 Moderate	Good	View Details
November	11°C / 3°C	8°C / -1°C	9days (79 mm) Wet	6.6h Fair	72% Muggy	2.8 Moderate	Poor	View Details
December	5°C / -2°C	1°C / -6°C	10days (127 mm) Wet	5.5h Fair	73% Muggy	2 Low	Poor	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 Windham?

May is typically good for visiting Windham, with average highs of 20°C (68°F) and around 12 rainy days. Windham, United States in May has mild conditions, with highs averaging 20°C (68°F) and noticeably cooler mornings. Rain

Does it rain a lot in Windham in May?

Windham typically sees around 12 rainy days in May with 107 mm (4.2 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Windham in May?

Nights in Windham during May are cool at around 10°C (51°F). Bring a jacket or sweater for evenings.

What should I pack for Windham in May?

With highs of 20°C (68°F) and lows of 10°C (51°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 Windham?

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

What is the UV index in Windham in May?

The average UV index in Windham 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 Windham in May?

Windham gets approximately 15 hours of daylight per day in May, with around 9 hours of sunshine.

Does it snow in Windham in May?

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

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