Glarus, Switzerland experiences average highs of 16°C (61°F) and lows of 7°C (45°F) throughout the year. Rainfall is frequent, averaging about 17 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 1.3°C (2.3°F) across the available records.
Glarus, Switzerland Weather & Climate 2026
Monthly climate averages for Glarus, Switzerland. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.7/10
Best: June, July, August, September, October
UV Index
4
Low
Temperature 16°C / 7°C
Feels Like 15°C / 6°C
Rainy Days 17
Rainfall 184 mm
Sunshine 9 h
Humidity 81%
Wind Speed 7 km/h
Dew Point 8°C
Snow Days 12 days
Frost Days 11 days
Hottest Month
25°C
August
Avg Low16°C
Rain20days
Coldest Month
-2°C
January
Avg High6°C
Rain15days
Driest Month
13days
February
Avg High9°C
Avg Low0°C
Windiest Month
7 km/h
March (Gusts 42)
Worst Time to Visit
Consider avoiding January, February, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:29
Daylight 15.9h
Sunset 21:22
Live conditions—
Glarus on the map · live conditions
Glarus, Switzerland
- Continent
- Europe
- Country
- Switzerland
- City
- Glarus
- Population
- 12.4K
- Coordinates
- 47.04°, 9.07°
Seasonal Breakdown
Spring
Mar–May
Avg High 14°C
Avg Low 5°C
Rain 18 days/mo
Summer
Jun–Aug
Avg High 25°C
Avg Low 15°C
Rain 21 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 16°C
Avg Low 8°C
Rain 15 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 7°C
Avg Low -1°C
Rain 14 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 6°C / -2°C . Feb: 9°C / 0°C . Mar: 11°C / 2°C . Apr: 14°C / 5°C . May: 18°C / 9°C . Jun: 24°C / 14°C . Jul: 25°C / 16°C . Aug: 25°C / 16°C . Sep: 21°C / 13°C . Oct: 17°C / 9°C . Nov: 11°C / 3°C . Dec: 7°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 163 mm. Feb: 110 mm. Mar: 136 mm. Apr: 149 mm. May: 224 mm. Jun: 248 mm. Jul: 281 mm. Aug: 270 mm. Sep: 189 mm. Oct: 151 mm. Nov: 130 mm. Dec: 154 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 81%. Feb: 78%. Mar: 77%. Apr: 77%. May: 81%. Jun: 81%. Jul: 81%. Aug: 82%. Sep: 84%. Oct: 84%. Nov: 85%. Dec: 82%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 7 km/h . Feb: 7 km/h . Mar: 7 km/h . Apr: 7 km/h . May: 7 km/h . Jun: 7 km/h . Jul: 7 km/h . Aug: 7 km/h . Sep: 6 km/h . Oct: 7 km/h . Nov: 7 km/h . Dec: 7 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 11h. May: 10h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 7h. Nov: 6h. Dec: 5h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 2. Mar: UV 3. Apr: UV 5. May: UV 5. Jun: UV 6. Jul: UV 6. Aug: UV 6. Sep: UV 4. Oct: UV 3. Nov: UV 2. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 19 days. Feb: 15 days. Mar: 17 days. Apr: 13 days. May: 10 days. Jun: 1 days. Jul: 0 days. Aug: 0 days. Sep: 4 days. Oct: 6 days. Nov: 16 days. Dec: 17 days.
Climate Trends
Average highs have warmed by 1.3°C (2.3°F) across the available records. Average rainfall is trending drier by about 11 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jun 2025 · 26°C | Aug · 25°C |
| Coldest month | Jan 2025 · -2°C | Jan · -2°C |
| Wettest month | Jul 2025 · 400 mm | Jul · 281 mm |
| Windiest month | Jan 2025 · 9 km/h | Mar · 7 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Wet June best
Wet July best
Wet August best
Wet September best
Wet October best
Fair November
Poor December
Poor | 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 |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Glarus are June, July, August, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Glarus, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Glarus is August, with average daytime highs of 25°C (77°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Glarus is January, with average overnight lows of -2°C (29°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Glarus is July, averaging 281mm of precipitation across 23 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Glarus runs through May, July, June, August, with the heaviest rainfall in May. Based on 10-year averages for Glarus.
Glarus receives approximately 103 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Glarus.
The least favorable months to visit Glarus are January, February, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider June, July, August, September, October instead.
The annual average UV index in Glarus is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Glarus is 81%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes, Glarus receives snow. Months with snowfall average 12 snow days and 47 cm (19 in) of accumulation, with about 11 frost days during winter.
Average wind speeds in Glarus are 7 km/h (4 mph). The windiest month is March with peak winds reaching 7 km/h (5 mph) (gusts up to 42 km/h / 26 mph).
Glarus averages 2 clear-sky days per month with overall cloud cover around 69%. The clearest skies occur in March.
The annual average dew point in Glarus is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Glarus has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Glarus ranges from 6°C (43°F) to 15°C (59°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Glarus, with a climate score of 7.1/10. Consider visiting during June, July, August, September, October instead for better conditions.
For June in Glarus, pack Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+), Sunglasses. With average highs of 24°C (75°F) and 21 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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