South Tyrol weather: Bolzano by month
South Tyrol weather is measured at many stations, and the figures on this page come from one of them: Bolzano in the valley. They are averages from the provincial weather service, not a forecast for 2026. Temperature averages cover the years 1926 to 2024, rainfall averages the years 1921 to 2024. They are not the 1991 to 2020 climate normals.
Highs and lows in the table are the mean daily maximum and minimum for each month, not record values. We show no figures for Merano or for the mountains: for those, use a current forecast. When you plan the trip itself, the best time to visit page lists the seasons for lifts, gardens and roads.
Monthly averages for Bolzano
Temperature 1926 to 2024, rainfall 1921 to 2024.
| Month | Mean daily high (°C) | Mean daily low (°C) | Rainfall (mm) |
|---|---|---|---|
| January | 5.8 | -3.6 | 25.0 |
| February | 9.4 | -1.1 | 27.0 |
| March | 14.8 | 3.2 | 36.1 |
| April | 18.9 | 7.3 | 55.8 |
| May | 23.2 | 11.1 | 74.5 |
| June | 27.2 | 14.6 | 79.7 |
| July | 29.4 | 16.3 | 88.0 |
| August | 28.7 | 15.8 | 88.9 |
| September | 24.5 | 12.5 | 70.2 |
| October | 18.3 | 7.1 | 72.4 |
| November | 11.0 | 1.4 | 69.1 |
| December | 6.2 | -2.7 | 35.5 |
Our pick: a self-guided e-bike tour
A self-guided e-bike tour lets you pick the day yourself, so you can plan around the forecast.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in euros (as of October 2026). Tap a tour for live availability and the current price in your currency.
A self-guided e-bike tour in Val Gardena
An app-guided e-bike ride with helmet, phone holder and navigation, plus other trips from the region, with live prices and availability. You ride on your own, guided by the app.
Summer
Warm valleys, afternoon rain possible.
In Bolzano, July is the warmest month, with a mean daily high of 29.4 °C and a mean low of 16.3 °C. August is close behind at 28.7 °C and also has the highest rainfall in the table, 88.9 mm. That does not mean it rains all day: plan mountain tours for the morning and keep the afternoon flexible. The valley is warmer than the higher ground, so pack a layer for the cable car stations. Mountain figures are not on this page, and a current forecast is the safer guide. The e-bike tour above is a dry day option in Val Gardena, with no weather promise attached.
Winter and winter equipment
Cold mornings in the valley and rules for the road.
January has the coldest mean daily low in Bolzano, minus 3.6 °C, with a mean high of 5.8 °C. The mean low is minus 1.1 °C in February and minus 2.7 °C in December. These are also the driest months in the table, with 25.0 mm in January, 27.0 mm in February and 35.5 mm in December.
From 15 November to 15 April, winter equipment is required on the A22 and in Bolzano, whatever the conditions. On other roads the signs apply when there is snow or ice. Mountain roads can have their own periods, so check closures and traffic reports before each drive. More road rules are on the getting there page.
Spring and autumn
Changeable months in between.
April has a mean daily high of 18.9 °C and a low of 7.3 °C, with 55.8 mm of rain. May warms up to 23.2 °C. In autumn, October has a mean high of 18.3 °C and a low of 7.1 °C, with 72.4 mm, and by November the mean high is 11.0 °C and the low 1.4 °C. Mornings are cool and afternoons mild, so dress in layers. These are valley averages: higher up it is colder, and trails may still hold snow. Check the cable car seasons, which end on 2 November 2026, on the best time to visit page, and the Alpe di Siusi page for the lift.
South Tyrol weather: frequently asked questions
Which month is the warmest in Bolzano?
July, with a mean daily high of 29.4 °C and a mean daily low of 16.3 °C (temperature series 1926 to 2024).
Which month has the most rain in Bolzano?
August, with 88.9 mm on average, the highest value in the table (rainfall series 1921 to 2024).
Are these values a forecast?
No. They are long-term monthly averages for Bolzano, not a forecast for 2026 and not for the mountains or Merano.
When do I need winter equipment on the road?
From 15 November to 15 April on the A22 and in Bolzano. Elsewhere the road signs apply when there is snow or ice.