Rorschach, Switzerland experiences average highs of 14°C (57°F) and lows of 7°C (45°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Average highs have warmed by 0.9°C (1.6°F) across the available records.
Rorschach, Switzerland Weather & Climate 2026
Monthly climate averages for Rorschach, Switzerland. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Nov 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.9/10
Best: June, July, August, September, October
UV Index
4
Low
Temperature 14°C / 7°C
Feels Like 13°C / 5°C
Rainy Days 14
Rainfall 118 mm
Sunshine 8 h
Humidity 78%
Wind Speed 9 km/h
Dew Point 7°C
Snow Days 7 days
Frost Days 12 days
Hottest Month
24°C
August
Avg Low16°C
Rain14days
Coldest Month
-2°C
January
Avg High4°C
Rain15days
Driest Month
12days
February
Avg High7°C
Avg Low-1°C
Windiest Month
11 km/h
April (Gusts 29)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:26
Daylight 15.9h
Sunset 21:22
Live conditions—
Rorschach on the map · live conditions
Rorschach, Switzerland
- Continent
- Europe
- Country
- Switzerland
- City
- Rorschach
- Population
- 9K
- Coordinates
- 47.48°, 9.49°
Seasonal Breakdown
Spring
Mar–May
Avg High 14°C
Avg Low 5°C
Rain 14 days/mo
Summer
Jun–Aug
Avg High 23°C
Avg Low 15°C
Rain 15 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 15°C
Avg Low 8°C
Rain 13 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 6°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: 4°C / -2°C . Feb: 7°C / -1°C . Mar: 10°C / 2°C . Apr: 14°C / 5°C . May: 18°C / 9°C . Jun: 23°C / 15°C . Jul: 24°C / 16°C . Aug: 24°C / 16°C . Sep: 20°C / 12°C . Oct: 16°C / 8°C . Nov: 9°C / 3°C . Dec: 6°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 114 mm. Feb: 78 mm. Mar: 86 mm. Apr: 98 mm. May: 148 mm. Jun: 147 mm. Jul: 149 mm. Aug: 172 mm. Sep: 120 mm. Oct: 101 mm. Nov: 94 mm. Dec: 103 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 82%. Feb: 79%. Mar: 76%. Apr: 73%. May: 75%. Jun: 75%. Jul: 75%. Aug: 77%. Sep: 80%. Oct: 82%. Nov: 84%. Dec: 83%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 10 km/h . Mar: 10 km/h . Apr: 11 km/h . May: 11 km/h . Jun: 10 km/h . Jul: 9 km/h . Aug: 9 km/h . Sep: 9 km/h . Oct: 9 km/h . Nov: 9 km/h . Dec: 9 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 6h. Mar: 8h. Apr: 10h. May: 10h. Jun: 11h. Jul: 11h. Aug: 10h. Sep: 9h. Oct: 7h. Nov: 5h. 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 6. Jun: UV 7. 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: 13 days. Feb: 8 days. Mar: 7 days. Apr: 4 days. May: 1 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 6 days. Dec: 10 days.
Climate Trends
Average highs have warmed by 0.9°C (1.6°F) across the available records. Average rainfall is trending drier by about 16 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jun 2025 · 25°C | Aug · 24°C |
| Coldest month | Jan 2025 · -3°C | Jan · -2°C |
| Wettest month | Jul 2025 · 227 mm | Aug · 172 mm |
| Windiest month | Apr 2025 · 10 km/h | Apr · 11 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May
Fair June best
Excellent July best
Excellent August best
Excellent September best
Good October best
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 4°C / -2°C | 1°C / -6°C | 15days (114 mm) Wet | 5.1h Fair | 82% Humid | 1.5 Low | Poor | View Details |
| February | 7°C / -1°C | 4°C / -4°C | 12days (78 mm) Wet | 6.4h Fair | 79% Humid | 2.2 Moderate | Poor | View Details |
| March | 10°C / 2°C | 8°C / -1°C | 13days (86 mm) Wet | 8.2h Good | 76% Humid | 3.3 Moderate | Poor | View Details |
| April | 14°C / 5°C | 13°C / 3°C | 13days (98 mm) Wet | 9.8h Good | 73% Muggy | 4.8 Moderate | Fair | View Details |
| May | 18°C / 9°C | 17°C / 8°C | 17days (148 mm) Wet | 9.8h Good | 75% Muggy | 5.6 High | Fair | View Details |
| June best | 23°C / 15°C | 24°C / 15°C | 15days (147 mm) Wet | 11.4h Excellent | 75% Muggy | 6.5 High | Excellent | View Details |
| July best | 24°C / 16°C | 25°C / 17°C | 16days (149 mm) Wet | 11.2h Excellent | 75% Muggy | 6.3 High | Excellent | View Details |
| August best | 24°C / 16°C | 25°C / 17°C | 14days (172 mm) Wet | 10.2h Excellent | 77% Humid | 5.6 High | Excellent | View Details |
| September best | 20°C / 12°C | 20°C / 12°C | 13days (120 mm) Wet | 8.7h Good | 80% Humid | 4.1 Moderate | Good | View Details |
| October best | 16°C / 8°C | 15°C / 6°C | 13days (101 mm) Wet | 6.9h Fair | 82% Humid | 2.8 Moderate | Good | View Details |
| November | 9°C / 3°C | 7°C / 0°C | 14days (94 mm) Wet | 5.3h Fair | 84% Humid | 1.6 Low | Poor | View Details |
| December | 6°C / 0°C | 3°C / -4°C | 15days (103 mm) Wet | 4.6h Fair | 83% Humid | 1.2 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Rorschach 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 Rorschach, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Rorschach is August, with average daytime highs of 24°C (75°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Rorschach is January, with average overnight lows of -2°C (28°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Rorschach is August, averaging 172mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Rorschach runs through May, July, January, June, with the heaviest rainfall in May. Based on 10-year averages for Rorschach.
Rorschach receives approximately 98 sunshine hours per year. The sunniest month is June with around 11 hours. Based on climate data for Rorschach.
The least favorable months to visit Rorschach are January, February, November, 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 Rorschach is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Rorschach is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Rorschach receives snow. Months with snowfall average 7 snow days and 15 cm (6 in) of accumulation, with about 12 frost days during winter.
Average wind speeds in Rorschach are 9 km/h (6 mph). The windiest month is April with peak winds reaching 11 km/h (7 mph) (gusts up to 29 km/h / 18 mph).
Rorschach averages 3 clear-sky days per month with overall cloud cover around 64%. The clearest skies occur in March.
The annual average dew point in Rorschach is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Rorschach 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 Rorschach ranges from 5°C (41°F) to 13°C (55°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Rorschach. It earns a climate score of 7.8/10 with Excellent.
For June in Rorschach, pack Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+), Sunglasses. With average highs of 23°C (73°F) and 15 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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