Best time to visit St Moritz
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in St Moritz
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on St Moritz).
- 1
Ski Safari with ski instructor in the Engadine, St Moritz, Switzerland - 2
St Moritz Private Guided Panorama Hike - 3
Ski & Snowboard Lesson - 3 Hours St Moritz - 4
St. Moritz to Milan Bergamo Airport (BGY) - Departure Transfer - 5
St Moritz, Switzerland to Malpensa Airport (MXP) -Departure Private Transfer - 6
Private direct transfer from St. Moritz to Munich
Last refreshed 2026-06-16.
Similar climatesZermatt94% · Jasper88% · Davos88%
Other destinations with the most-alike year-round climate to St Moritz (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against St Moritz's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | -10–-2 | -6 | 11 | 165 | 15.0 | 66% | 8 | 147 | 1 | Quiet | 8 |
| Feb | -8–1 | -3 | 10 | 145 | 14.5 | 66% | 9 | 155 | 2 | Quiet | 8 |
| Mar | -7–2 | -2 | 10 | 157 | 15.7 | 65% | 8 | 201 | 4 | Quiet | 8 |
| Apr | -5–4 | 1 | 10 | 157 | 15.7 | 64% | 8 | 228 | 6 | Quiet | 8 |
| May | 1–9 | 6 | 14 | 195 | 13.9 | 70% | 8 | 240 | 6 | Quiet | 6 |
| Jun | 5–15 | 13 | 13 | 148 | 11.4 | 66% | 10 | 270 | 7 | Quiet | 4 |
| Jul | 7–18 | 16 | 13 | 156 | 12.0 | 61% | 10 | 297 | 7 | Quiet | 3 |
| Aug | 7–17 | 16 | 12 | 150 | 12.5 | 63% | 9 | 261 | 6 | Quiet | 3 |
| Sep | 3–13 | 11 | 10 | 141 | 14.1 | 69% | 8 | 215 | 5 | Quiet | 6 |
| Oct | 0–8 | 6 | 11 | 163 | 14.8 | 76% | 8 | 169 | 3 | Quiet | 7 |
| Nov | -6–3 | 0 | 11 | 146 | 13.3 | 73% | 7 | 146 | 2 | Moderate | 8 |
| Dec | -8–-1 | -4 | 12 | 209 | 17.4 | 74% | 8 | 117 | 1 | Peak | 7 |
UV Index in St Moritz by Month
UV index in St Moritz peaks at 7 (high) in June, dropping to 1 (low) in December. May, June, July, August have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
February
8/10-8–1°C (feels -3°C) · 10 rain days (145h) · 155 sun hours · 66% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
November
8/10-6–3°C (feels 0°C) · 11 rain days (146h) · 146 sun hours · 73% humidity · Moderate crowd · UV 2 (low)
March
8/10-7–2°C (feels -2°C) · 10 rain days (157h) · 201 sun hours · 65% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
Every month
Show the other 9 months in detail
January
8/10-10–-2°C (feels -6°C) · 11 rain days (165h) · 147 sun hours · 66% humidity · Quiet crowd · UV 1 (low)
April
8/10-5–4°C (feels 1°C) · 10 rain days (157h) · 228 sun hours · 64% humidity · Quiet crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 7 (high)
May
6/101–9°C (feels 6°C) · 14 rain days (195h) · 240 sun hours · 70% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
June
4/105–15°C (feels 13°C) · 13 rain days (148h) · 270 sun hours · 66% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)
July
3/107–18°C (feels 16°C) · 13 rain days (156h) · 297 sun hours · 61% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)
August
3/107–17°C (feels 16°C) · 12 rain days (150h) · 261 sun hours · 63% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
September
6/103–13°C (feels 11°C) · 10 rain days (141h) · 215 sun hours · 69% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
October
7/100–8°C (feels 6°C) · 11 rain days (163h) · 169 sun hours · 76% humidity · Quiet crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
December
7/10-8–-1°C (feels -4°C) · 12 rain days (209h) · 117 sun hours · 74% humidity · Peak crowd · UV 1 (low)
Frequently asked questions about visiting St Moritz
When is the best time to visit St Moritz?
February is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: -8–1°C (10 rainy days). The top three months by score are February, November, March.
What is the worst time to visit St Moritz?
July is the lowest-scoring month (3/10, capped by extreme heat). Typical conditions: 7–18°C (13 rainy days).
Is St Moritz too hot in summer?
3 months (June, July, August) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.
When are crowds lowest in St Moritz?
Search-interest seasonality (Google Trends 2021-2025) is lowest in July and peaks in December. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in St Moritz have good weather but fewer tourists?
January (climate 8/10, crowd index 25) and February (climate 8/10, crowd index 27) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in St Moritz by month?
UV peaks at 7 (high) in June and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 4, Apr 6, May 6, Jun 7, Jul 7, Aug 6, Sep 5, Oct 3, Nov 2, Dec 1.
What is the UV index in St Moritz in June?
June is the peak UV month in St Moritz, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.
How high can UV get in St Moritz on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. June is the worst case: typical days average UV 7 (high), but the top 10% of days reach UV 9 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: February, March, April, May, June, July, August, September, October. Plan sun protection for the worst case, not the average.