Switzerland
St. Moritz in May: weather & travel advice
This month's data profile
Rain shapes the decision
St. Moritz in May is climatically mixed. The average daily high is around 9 °C. With about 20 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
28/100 · #10
Warmth
#5
Dryness
#12
Sun
#3
Published best categories: none
St. Moritz · MayPhoto: Isiwal · CC BY-SA 4.0Climate facts
- Average high
- 9 °C
- Average low
- 0 °C
- Rainy days (est.)
- 20 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 80 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| April | 3 | -5 | 15 | 82 | 5.5 | 84 | 1.3 | 28 |
| May (selected) | 9 | -0 | 20 | 120 | 6.2 | 80 | 1.2 | 28 |
| June | 14 | 4 | 19 | 135 | 7.0 | 77 | 1.1 | 39 |
How do the previous and next months compare?
Baseline: May (28/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| April | ±0 | -6.1 °C | -5 °C | -5 | -38.2 mm | -0.7 h | +4.7 % | +0.1 m/s |
| June | +11 | +4.6 °C | +4 °C | -0.8 | +14.8 mm | +0.8 h | -2.3 % | -0.1 m/s |
All twelve months in context
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Where to stay in St. Moritz
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Useful next decisions
Frequently asked questions
How warm is St. Moritz in May?
The average daily high is around 9 °C, with an average daily low of about 0 °C.
Does it rain a lot in St. Moritz in May?
The curated estimate is about 20 rainy days per month, not a directly measured long-term average. Total precipitation averages around 120 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit St. Moritz?
No month in St. Moritz reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.