Glarus, Switzerland — Weather in May 2027

Climate Overview

Glarus, Switzerland in May has mild conditions, with highs averaging 18.3°C (65°F) and noticeably cooler mornings. Rain falls on about 23 days this month, totalling around 224 mm.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 16°C (60°F) at the start to 21°C (69°F) by month's end.

May sees fairly even rainfall, totalling about 224 mm across the month.

Expect around 9.4h of sunshine at the start of May, increasing to 12.1h by the end.

The warmest days tend to fall around the 28th, averaging 20.8°C (69°F).

Compared to April, this month is about 4°C warmer with 7 more rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

18°C / 9°C

Feels Like

19°C / 8°C

Rain

23 days · 224 mm

Sunshine

10.3h / day

Humidity

81% — Very Humid

Wind

7 km/h

Wind Direction

NW (305°)

Gusts

36 km/h

Daylight

15.1 h

Cloud Cover

76%

Clear Sky Days

1.3

UV Index

5.3 — High

Dew Point

10°C — Comfortable

Moon Phase

Waxing Gibbous · 66%

Snow Days

10 days · 19.1 cm

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 05:50

Daylight 15h

Sunset 20:53

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 / -2°C	3°C / -5°C	15days (163 mm) Wet	5.7h Fair	81% Humid	1.6 Low	Poor	View Details
February	9°C / 0°C	6°C / -4°C	13days (110 mm) Wet	7.1h Good	78% Humid	2.4 Moderate	Poor	View Details
March	11°C / 2°C	9°C / -1°C	16days (136 mm) Wet	8.7h Good	77% Humid	3.3 Moderate	Poor	View Details
April	14°C / 5°C	13°C / 3°C	16days (149 mm) Wet	10.5h Excellent	77% Humid	4.8 Moderate	Poor	View Details
May	18°C / 9°C	19°C / 8°C	23days (224 mm) Wet	10.3h Excellent	81% Humid	5.3 High	Wet	View Details
June best	24°C / 14°C	26°C / 14°C	21days (248 mm) Wet	11.5h Excellent	81% Humid	6.4 High	Wet	View Details
July best	25°C / 16°C	28°C / 17°C	23days (281 mm) Wet	11.6h Excellent	81% Humid	6.2 High	Wet	View Details
August best	25°C / 16°C	28°C / 17°C	20days (270 mm) Wet	10.5h Excellent	82% Humid	5.6 High	Wet	View Details
September best	21°C / 13°C	22°C / 13°C	17days (189 mm) Wet	9h Good	84% Humid	4.1 Moderate	Wet	View Details
October best	17°C / 9°C	17°C / 7°C	14days (151 mm) Wet	7.4h Good	84% Humid	2.8 Moderate	Fair	View Details
November	11°C / 3°C	9°C / 1°C	14days (130 mm) Wet	6h Fair	85% Humid	1.7 Low	Poor	View Details
December	7°C / 0°C	5°C / -3°C	15days (154 mm) Wet	5h Fair	82% Humid	1.3 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 jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Glarus?

May is typically wet for visiting Glarus, with average highs of 18°C (65°F) and around 23 rainy days. Glarus, Switzerland in May has mild conditions, with highs averaging 18.3°C (65°F) and noticeably cooler mornings. Rain

Does it rain a lot in Glarus in May?

Glarus typically sees around 23 rainy days in May with 224 mm (8.8 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Glarus in May?

Nights in Glarus during May are cool at around 9°C (48°F). Bring a jacket or sweater for evenings.

What should I pack for Glarus in May?

With highs of 18°C (65°F) and lows of 9°C (48°F) in May, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Glarus in May?

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

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

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

Does it snow in Glarus in May?

Yes, Glarus typically sees around 10 snow days in May with roughly 19 cm (8 in) of snowfall.

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