Grabs, Switzerland — Weather in May 2027

Climate Overview

Grabs, Switzerland in May has mild conditions, with highs averaging 17.7°C (64°F) and noticeably cooler mornings. Rain falls on about 20 days this month, totalling around 198 mm.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 15°C (59°F) at the start to 20°C (68°F) by month's end.

May sees fairly even rainfall, totalling about 197 mm across the month.

Expect around 8.7h of sunshine at the start of May, increasing to 11.8h by the end.

The warmest days tend to fall around the 29th, averaging 20.3°C (69°F).

Compared to April, this month is about 4°C warmer with 6 more rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

18°C / 8°C

Feels Like

18°C / 7°C

Rain

20 days · 198 mm

Sunshine

9.8h / day

Humidity

81% — Very Humid

Wind

8 km/h

Wind Direction

WNW (298°)

Gusts

32 km/h

Daylight

15.1 h

Cloud Cover

70%

Clear Sky Days

2.3

UV Index

5.5 — High

Dew Point

10°C — Dry

Moon Phase

Waxing Gibbous · 66%

Snow Days

3 days · 4.8 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 05:48

Daylight 15.1h

Sunset 20:52

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	5°C / -3°C	3°C / -7°C	14days (137 mm) Wet	5.3h Fair	80% Humid	1.7 Low	Poor	View Details
February	8°C / -1°C	6°C / -5°C	12days (94 mm) Wet	6.6h Fair	78% Humid	2.5 Moderate	Poor	View Details
March	10°C / 1°C	8°C / -2°C	15days (112 mm) Wet	8.3h Good	77% Humid	3.6 Moderate	Poor	View Details
April	14°C / 4°C	13°C / 1°C	14days (127 mm) Wet	9.9h Good	76% Humid	5.1 High	Fair	View Details
May	18°C / 8°C	18°C / 7°C	20days (198 mm) Wet	9.8h Good	81% Humid	5.5 High	Wet	View Details
June best	23°C / 13°C	25°C / 13°C	19days (199 mm) Wet	11.3h Excellent	80% Humid	6.5 High	Wet	View Details
July best	24°C / 15°C	26°C / 15°C	20days (221 mm) Wet	11h Excellent	81% Humid	6.4 High	Wet	View Details
August best	24°C / 15°C	27°C / 15°C	17days (224 mm) Wet	10.1h Excellent	83% Humid	5.6 High	Excellent	View Details
September best	20°C / 11°C	21°C / 11°C	15days (158 mm) Wet	8.6h Good	84% Humid	4.1 Moderate	Good	View Details
October best	17°C / 8°C	16°C / 6°C	13days (126 mm) Wet	7.1h Good	84% Humid	3 Moderate	Good	View Details
November	10°C / 2°C	9°C / 0°C	14days (112 mm) Wet	5.5h Fair	84% Humid	1.8 Low	Poor	View Details
December	7°C / -1°C	4°C / -5°C	15days (123 mm) Wet	4.7h Fair	81% Humid	1.4 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.

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

Packing List

Layered clothingLight jacketUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Grabs?

May is typically wet for visiting Grabs, with average highs of 18°C (64°F) and around 20 rainy days. Grabs, Switzerland in May has mild conditions, with highs averaging 17.7°C (64°F) and noticeably cooler mornings. Rain f

Does it rain a lot in Grabs in May?

Grabs typically sees around 20 rainy days in May with 198 mm (7.8 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Grabs in May?

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

What should I pack for Grabs in May?

With highs of 18°C (64°F) and lows of 8°C (46°F) in May, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Grabs in May?

The average UV index in Grabs 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 Grabs in May?

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

Does it snow in Grabs in May?

Yes, Grabs typically sees around 3 snow days in May with roughly 5 cm (2 in) of snowfall.

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