01 / LAKE SILS
Lake Sils and open horizons
Shore paths, boats and broad mountain views: Lake Sils is a place for fresh air and scenery rather than warm-water swimming.
SWITZERLAND · HIGH VALLEY · LAKES
Engadin.
Lakes and mountains.
Room to breathe.
Wide horizons, clear lakes and mountain air. A thoughtful escape shaped by the season, not a promise of perfect weather.
Explore when to visitBEST TIME TO VISITJune–September
The most appealing period for nature and outdoor activities
COMFORTABLE CLIMATECool to mild
Conditions depend on location, altitude and season
TIME TO EXPLORE5–8 nights
Leave room for changing weather and unhurried days
YOUR HOLIDAY STYLENature & discovery
For active days and time to unwind
YOUR HOLIDAY. COMFORTABLY DIFFERENT.
Get outdoors.
Feel the difference.
At around 1,700 metres, the Upper Engadin is a natural choice for a summer away from oppressive heat. Lakes, well-connected villages and trails allow an active week with room for changing mountain weather.
At around 1,700 metres, the Upper Engadin is a natural choice for a summer away from oppressive heat. Lakes, well-connected villages and trails allow an active week with room for changing mountain weather.
This guide focuses on the high valleys around St. Moritz, Pontresina, Sils and Silvaplana. This guide covers the Upper Engadin, not the whole canton of Graubünden; climate measurements refer to Samedan at about 1,700 metres.
Keep the plan realistic: High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans. Rail connections and mountain transport make many excursions possible without a car.
Which region does this guide cover?
This guide covers the Upper Engadin, not the whole canton of Graubünden; climate measurements refer to Samedan at about 1,700 metres.
PLACES THAT STAY WITH YOU
Lakes, larch woods
and mountain horizons.
Three ways to explore the Upper Engadin, without turning the trip into a checklist.
02 / PONTRESINA
Valley walks and glacier views
Pontresina makes a useful base for gentle routes or more ambitious hikes. Match your plans to fitness, weather and open trails.
03 / MUOTTAS MURAGL
Reach the views without rushing
Mountain railways, panoramas and easier high-altitude paths make Muottas Muragl appealing even without a strenuous summit hike.
Lake Silvaplana
Wind, water sports and plenty of room along the lakeshore.
Val Roseg
A quieter valley for a long, unhurried break in nature.
St. Moritz
Rail connections, restaurants and culture: more than mountain scenery.
THE RIGHT TIME FOR YOU
Best time to visit Engadin & Upper Engadin Lakes.
Month by month.
Compare temperatures and travel conditions in the Upper Engadin through the year.
July
Excellent mountain summer in the Upper Engadin; start hikes early and keep afternoons flexible.
Visitor numbersHigh
Seasonal price levelVery high
Daytime average18.8 °CDaily maximum
2021–2025 Ø 19.5 °C +0.7 °C
Night-time average8.6 °CDaily minimum
Rainfall72.9 mmper month
Watereditorial assessment
Heat riskVery lowqualitative assessment
Humidity discomfortLowqualitative assessment
Sea & coast0/5
Mountains & lakes5/5
Nature5/5
Cities & culture4/5
Long-term monthly climate averages for the stated reference location in the Upper Engadin. Local altitude, coastal exposure and microclimates can differ. These are climate averages, not weather forecasts. Sources & context
Enjoy the season.
Keep an eye on the forecast.
High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans. Monthly averages help with planning, but the actual weather and conditions can differ.
1991–2020 · Average daily maximum
2021–2025 warmer
2021–2025 cooler
0.1°+0.1°Jan
1.7°+3°Feb
5.6°+0.9°Mar
9°+0.2°Apr
13°+0.2°May
17.1°+2.3°Jun
18.8°+0.7°Jul
18.8°+0.7°Aug
14.8°+0.7°Sep
10.1°+2°Oct
4.3°0°Nov
0.7°+0.5°Dec
Temperature comparison: The bars show the 1991–2020 climate normal. The coloured line shows how the five most recent complete years, 2021–2025, differ: red = warmer, green = cooler. These five years form a recent comparison period, not a new climate normal.
Compare climate data across the year
| Month | Day | Night | Rainfall |
|---|---|---|---|
| January | 0.1 °C | -8.5 °C | 16.2 mm |
| February | 1.7 °C | -8 °C | 11.9 mm |
| March | 5.6 °C | -4.2 °C | 17.9 mm |
| April | 9 °C | -0.7 °C | 20.8 mm |
| May | 13 °C | 3.5 °C | 31.3 mm |
| June | 17.1 °C | 6.9 °C | 55.1 mm |
| July | 18.8 °C | 8.6 °C | 72.9 mm |
| August | 18.8 °C | 8.9 °C | 74.6 mm |
| September | 14.8 °C | 5.6 °C | 50.9 mm |
| October | 10.1 °C | 1.9 °C | 47.7 mm |
| November | 4.3 °C | -2.8 °C | 37.6 mm |
| December | 0.7 °C | -6.7 °C | 21.4 mm |
Temperature and precipitation: Meteostat Point Climate Normals (1991–2020). Heat and humidity are derived consistently for all destinations from climate averages using Coolcation methodology. Sea temperatures are included only for genuine coastal destinations, using NOAA OISST 1991–2020.
Which activities suit each month?
Editorial suitability: 0 unsuitable · 1 very limited · 2 limited · 3 good · 4 very good · 5 excellent. Overall suitability rates a varied sightseeing trip. Winter sports and swimming are assessed separately.
| Holiday preference | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall travel suitability | 2 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | 2 |
| Sea & coast | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mountains & lakes | 2 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | 2 |
| Nature | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 3 |
| Cities & culture | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 3 | 3 | 3 | 2 |
| Sea swimming | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lake swimming | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 1 | 0 | 0 | 0 |
| Walking | 1 | 1 | 2 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 2 | 1 |
| Cycling | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 1 |
| Wildlife watching | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 2 |
| Winter sports | 5 | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 5 |
Suitability scores are editorial guidance, not a guarantee of weather, easy access or safe conditions. Check current local conditions and choose activities to suit your experience.
All months, visitor numbers & seasonal prices
| Month | Visitor numbers | Prices | Assessment |
|---|---|---|---|
| January | Moderate | Higher | Snowy, cold and best suited to winter activities rather than a summer hiking holiday. |
| February | Moderate | Higher | Winter conditions continue; check open lifts, trails and snow forecasts. |
| March | Low | Mid-range | The first transitional days arrive, though higher trails can remain buried in snow. |
| April | Moderate | Mid-range | Valleys begin to wake up; expect snow and closures on high routes. |
| May | Moderate | Higher | A beautiful late spring, but choose open trails and keep plans flexible. |
| June | Busier | Higher | Long daylight hours make early summer excellent for walking; thunderstorms remain possible. |
| July | High | Very high | Excellent mountain summer in the Upper Engadin; start hikes early and keep afternoons flexible. |
| August | Very high | Very high | The warmest and busiest month around St. Moritz; mountain transport and lodging are in high demand. |
| September | Busier | Higher | A particularly rewarding month for lakes, walking and cool nights, usually calmer than August. |
| October | Moderate | Mid-range | Clear autumn days and glorious colours, but shorter daylight and possible early snow. |
| November | Low | Mid-range | Quiet between seasons; many mountain services operate limited schedules. |
| December | Busier around public holidays | Higher | Wintry conditions return, with short days and a need to check snow and trail access. |
YOUR PREFERENCES. YOUR HOLIDAY.
For travellers who
prefer their own pace.
Engadin & Upper Engadin Lakes suits travellers looking for alpine lakes, larch forests and superb mountain railways, without a rigid timetable.
A great fit for you.
- You want to explore alpine lakes, larch forests and superb mountain railways.
- You would rather travel in a more comfortable season than chase extreme heat.
- You prefer a relaxed home base with flexible plans for the weather.
- You enjoy outdoor experiences around the high valleys around St. Moritz, Pontresina, Sils and Silvaplana.
What you should know.
- High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans.
- Check opening hours, access restrictions and local trail conditions before each outing.
- Busy weekends and summer holidays can make popular stops more crowded; book essential transport where needed.
- Allow for extra travel time and a backup activity if the forecast changes.
Compare travel styles in detail
Nature & mountain scenery5/5
Nature & mountain scenery in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Families4/5
Families in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Hiking5/5
Hiking in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Active holidays & cycling5/5
Active holidays & cycling in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Swimming & beaches2/5
Swimming & beaches in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Quiet getaways4/5
Quiet getaways in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Cities & culture3/5
Cities & culture in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Simple & budget-friendly1/5
Simple & budget-friendly in the Upper Engadin: alpine lakes, larch forests and superb mountain railways. Suitability depends on the season, local conditions and individual preferences.
Editorial suitability, not ratings of individual providers. 0 = unsuitable, 5 = excellent. Conditions, season and personal mobility matter.
MUOTTAS MURAGL
More landscape.
Less rushing.
FROM WANDERLUST TO A PLAN
One home base.
Plenty of possibilities.
An unhurried five-to-eight-night idea, with enough flexibility for weather and energy.
Arrive and find your bearings
Settle into your base near the high valleys around St. Moritz, Pontresina, Sils and Silvaplana and start with a short, easy outing.
Choose your best outdoor day
Pick one highlight when conditions are right. High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans.
Return to a favourite place
Leave a spare day for weather, rest or an extra visit around the Upper Engadin.
Suggested itinerary, not a booking or guided tour. High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans. Check official access and opening information before travelling.
GETTING THERE
Planning your journey to the Upper Engadin
Rail connections and mountain transport make many excursions possible without a car.
Rhaetian RailwayGETTING AROUND
Plan short, realistic local journeys
Rail connections and mountain transport make many excursions possible without a car. Check timetables and seasonal restrictions as you plan each outing.
Engadin tourismSTAY SAFE OUTDOORS
Check weather and local access
High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans. Follow posted signs, official advice and any protected-area rules.
MeteoSchweizSTORIES & TRAVEL IDEAS
Discover even more.
In the Coolcation Blog.
Seasonal tips and fresh perspectives on this destination.
Engadin in Advent: six village markets instead of one big Christmas fair
Christmas is spread across several villages in the Engadin. From late November through December, small markets follow one another – ideal for a trip with short journeys and plenty of local character.
Read articleFive Christmas markets with extraordinary settings: island, gorge and Alpine town
Explore five distinctive Advent destinations in 2026: Fraueninsel on Lake Chiemsee, Ravenna Gorge, Glurns, Aosta and the villages of Engadin.
Read articleEngadin in September: weather, hiking and the red deer rut
Clear mountain days, chilly nights, quiet lakes and the red deer rut: here is how to plan an Engadin trip in early or late September.
Read articleGOOD TO KNOW, HONESTLY
A little planning.
Lots to look forward to.
When is the best time to visit?
June–September · high-altitude summer. High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans. Always check local weather shortly before travelling.
Is this a good destination for families?
Yes, with age-appropriate outings, reasonable travel times and flexible plans. High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans.
Do we need a car?
Rail connections and mountain transport make many excursions possible without a car.
How long should we stay?
Five nights give a first impression; seven or eight allow a more relaxed pace and a weather buffer.
How reliable is the climate?
Monthly climate averages help with planning, but weather can vary substantially. High-altitude sun, afternoon thunderstorms and cold evenings call for layers and flexible plans.
YOUR HOLIDAY BEGINS WITH A GOOD FEELING
Ready for fresh perspectives?
Find destinations that suit your travel dates, your favourite places
and your preferred climate.
Sources, climate notes & photo credits
So you can put the information in context.
Editorial information updated: 16 September 2026. Suitability, routes, price levels, humidity discomfort and heat risk are editorial assessments. Prices are not current offers. Climate averages do not replace a weather forecast.
Long-term monthly climate averages for the stated reference location in the Upper Engadin. Local altitude, coastal exposure and microclimates can differ. These are climate averages, not weather forecasts.
- Engadin: official travel information
- Rhaetian Railway
- MeteoSchweiz
- Schweizer Wanderwege
- Climate data · Meteostat Point Climate Normals
- ERA5-Land · Open-Meteo Historical Weather API · Comparing 1991–2020 with 2021–2025; the anomaly is applied to the verified Coolcation climate normal.
Photography
- Patrick Robert Doyle · Panorama of the Upper Engadin: alpine lakes, larch forests and superb mountain railways · Unsplash License. Resized; responsive image crop.
- Photoholgic · Landscape and natural scenery in the Upper Engadin: alpine lakes, larch forests and superb mountain railways · Unsplash License. Resized; responsive image crop.
- Daniel Seßler · View of the Upper Engadin: alpine lakes, larch forests and superb mountain railways · Unsplash License. Resized; responsive image crop.