Colla, Switzerland — Weather in May 2027

Climate Overview

Colla, Switzerland in May has mild conditions, with highs averaging 15.4°C (60°F) and noticeably cooler mornings. Rain falls on about 17 days this month, totalling around 185 mm.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 13°C (56°F) at the start to 18°C (64°F) by month's end.

May sees fairly even rainfall, totalling about 185 mm across the month.

Expect around 9.2h of sunshine at the start of May, increasing to 11.5h by the end.

The warmest days tend to fall around the 26th, averaging 17.8°C (64°F).

Compared to April, this month is about 4°C warmer with 5 more rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

15°C / 6°C

Feels Like

15°C / 4°C

Rain

17 days · 185 mm

Sunshine

10.1h / day

Humidity

75% — Humid

Wind

8 km/h

Wind Direction

N (6°)

Gusts

30 km/h

Daylight

15 h

Cloud Cover

65%

Clear Sky Days

UV Index

5.8 — High

Dew Point

7°C — Dry

Moon Phase

Waxing Gibbous · 66%

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 05:53

Daylight 14.9h

Sunset 20:50

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	3°C / -4°C	0°C / -8°C	7days (53 mm) Good	6.3h Fair	71% Muggy	1.7 Low	Poor	View Details
February	6°C / -2°C	3°C / -6°C	7days (66 mm) Good	6.8h Fair	72% Muggy	2.3 Moderate	Poor	View Details
March	8°C / -1°C	5°C / -4°C	10days (102 mm) Wet	8.2h Good	71% Muggy	3.2 Moderate	Poor	View Details
April	12°C / 3°C	10°C / 0°C	12days (133 mm) Wet	9.7h Good	69% Muggy	4.9 Moderate	Poor	View Details
May	15°C / 6°C	15°C / 4°C	17days (185 mm) Wet	10.1h Excellent	75% Muggy	5.8 High	Wet	View Details
June best	21°C / 11°C	22°C / 10°C	16days (185 mm) Wet	11.8h Excellent	75% Muggy	6.5 High	Wet	View Details
July best	22°C / 13°C	24°C / 13°C	14days (163 mm) Wet	12.3h Excellent	72% Muggy	6.8 High	Excellent	View Details
August best	22°C / 13°C	24°C / 13°C	14days (189 mm) Wet	11.2h Excellent	73% Muggy	6.1 High	Excellent	View Details
September best	18°C / 10°C	18°C / 9°C	13days (153 mm) Wet	9.2h Good	78% Humid	4.5 Moderate	Good	View Details
October	14°C / 6°C	12°C / 4°C	11days (211 mm) Wet	6.9h Fair	80% Humid	2.8 Moderate	Wet	View Details
November	8°C / 1°C	5°C / -2°C	11days (132 mm) Wet	5.7h Fair	79% Humid	2 Low	Poor	View Details
December	4°C / -3°C	2°C / -6°C	7days (72 mm) Good	5.5h Fair	75% Muggy	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.

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 Colla?

May is typically wet for visiting Colla, with average highs of 15°C (60°F) and around 17 rainy days. Colla, Switzerland in May has mild conditions, with highs averaging 15.4°C (60°F) and noticeably cooler mornings. Rain f

Does it rain a lot in Colla in May?

Colla typically sees around 17 rainy days in May with 185 mm (7.3 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Colla in May?

Nights in Colla during May are cool at around 6°C (43°F). Bring a jacket or sweater for evenings.

What should I pack for Colla in May?

With highs of 15°C (60°F) and lows of 6°C (43°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 Colla?

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

What is the UV index in Colla in May?

The average UV index in Colla 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 Colla in May?

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

Does it snow in Colla in May?

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

Last updated: