Saillon, Switzerland — Weather in May 2027

Climate Overview

Saillon, 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 186 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 21°C (69°F) by month's end.

May sees fairly even rainfall, totalling about 184 mm across the month.

Expect around 9.5h of sunshine at the start of May, increasing to 11.8h by the end.

The warmest days tend to fall around the 28th, averaging 21°C (70°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 / 9°C

Feels Like

18°C / 7°C

Rain

20 days · 186 mm

Sunshine

10.6h / day

Humidity

80% — Very Humid

Wind

6 km/h

Wind Direction

ENE (69°)

Gusts

33 km/h

Daylight

15 h

Cloud Cover

72%

Clear Sky Days

1.2

UV Index

5.9 — High

Dew Point

10°C — Dry

Moon Phase

Waxing Gibbous · 66%

Snow Days

8 days · 26.4 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 06:00

Daylight 15h

Sunset 20:58

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 / -5°C	2°C / -9°C	14days (151 mm) Wet	5.8h Fair	74% Muggy	1.9 Low	Poor	View Details
February	8°C / -2°C	6°C / -5°C	12days (101 mm) Wet	7.3h Good	75% Muggy	2.8 Moderate	Poor	View Details
March	11°C / 1°C	9°C / -2°C	14days (123 mm) Wet	9h Good	75% Muggy	4.2 Moderate	Poor	View Details
April	14°C / 5°C	14°C / 3°C	14days (120 mm) Wet	10.8h Excellent	74% Muggy	5.5 High	Fair	View Details
May	18°C / 9°C	18°C / 7°C	20days (186 mm) Wet	10.6h Excellent	80% Humid	5.9 High	Wet	View Details
June best	24°C / 14°C	27°C / 14°C	19days (173 mm) Wet	11.8h Excellent	79% Humid	7 High	Wet	View Details
July best	26°C / 16°C	29°C / 17°C	18days (181 mm) Wet	12.3h Excellent	77% Humid	7 High	Excellent	View Details
August best	26°C / 15°C	29°C / 16°C	15days (149 mm) Wet	11.2h Excellent	77% Humid	6.3 High	Excellent	View Details
September best	22°C / 12°C	23°C / 12°C	15days (136 mm) Wet	9.3h Good	82% Humid	4.8 Moderate	Good	View Details
October best	18°C / 8°C	18°C / 6°C	13days (119 mm) Wet	7.7h Good	81% Humid	3.2 Moderate	Good	View Details
November	11°C / 1°C	9°C / -2°C	14days (132 mm) Wet	6.3h Fair	80% Humid	2 Low	Poor	View Details
December	6°C / -4°C	3°C / -7°C	14days (164 mm) Wet	5.3h Fair	74% Muggy	1.6 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 Saillon?

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

Does it rain a lot in Saillon in May?

Saillon typically sees around 20 rainy days in May with 186 mm (7.3 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Saillon in May?

Nights in Saillon during May are cool at around 9°C (47°F). Bring a jacket or sweater for evenings.

What should I pack for Saillon in May?

With highs of 18°C (64°F) and lows of 9°C (47°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 Saillon?

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

What is the UV index in Saillon in May?

The average UV index in Saillon 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 Saillon in May?

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

Does it snow in Saillon in May?

Yes, Saillon typically sees around 8 snow days in May with roughly 26 cm (10 in) of snowfall.

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