Gromo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gromo.
Climate overview of Gromo
The climate in Gromo, Lombardy, Italy, is marked by large temperature swings across the seasons, ranging from 22°C (72°F) in July to 2°C (36°F) in January.
The city has a wet climate, receiving around 1882 mm (74 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from May to November, with pleasant summers and cold winters. June is the wettest month.
Gromo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gromo - and find the best time to visit.
Monthly Temperature in Gromo
In Gromo, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 22°C (72°F) in July to a chilly 2°C (36°F) in January.
Nighttime temperatures range from 11°C (52°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gromo
Gromo experiences significant rain/snowfall throughout the year, averaging 1882 mm (74 in) of precipitation annually. The seasons in Gromo bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 223 mm (8.8 in) of precipitation. This rainfall is distributed across 16 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 69 mm (2.7 in) over 13 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Gromo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Gromo by Month
The relative humidity is high throughout the year in Gromo.
The city experiences its highest humidity in December, reaching 79%. In June, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Gromo
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July and August
- Seasonal pattern: A distinct rainy season from May to November, with pleasant summers and cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Gromo
What is the best time to visit Gromo?
June, July and August typically offer the most optimal weather in Gromo. In contrast, January, February, March, April, May, September, October, November and December tend to have less optimal conditions. Gromo has a distinct rainy season from May to November, with pleasant summers and cold winters.
What temperatures can I expect in Gromo?
Daytime highs range from 2°C (36°F) in January to 22°C (72°F) in July. Nighttime lows range from -8°C (18°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Gromo get?
Annual rainfall is around 1882 mm (74 in). June is the wettest month with 223 mm (8.8 in), while January is the driest with 69 mm (2.7 in).
Gromo 3-Day Forecast
Gromo on the map
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