Climate Insights for Castell'Umberto

The climate in Castell'Umberto is temperate. The average annual temperature is 15°C and approximately 939mm of precipitation falls per year. October is the wettest month, receiving around 119mm of rainfall. Castell'Umberto is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, March, when temperatures can drop to 4°C. Light snow can occur between January and February.

Temperatures in Castell'Umberto vary considerably across the year, with a 24°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 28°C and the mean temperature sits around 24°C. January is the coolest month, with minimum temperatures around 4°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.

Castell'Umberto is a moderately rainy area, receiving approximately 939mm of precipitation annually, which averages out to around 78mm per month. The wettest month is October, averaging 119mm of rainfall. November and March also tend to see above-average precipitation. The driest month is July, with just 19mm. That's 100mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and February, totalling around 12cm annually. February is the snowiest month with approximately 6cm.

Castell'Umberto is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 11km/h in spring, 8km/h in summer, 9km/h in autumn.

It is currently spring in Castell'Umberto, which began on March 20, 2026. Castell'Umberto is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 28°C, while the coldest stretch bottoms out in January near 4°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Castell'Umberto is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 64mm per month. By contrast, January can be quite cold with temperatures dropping to 4°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Castell'Umberto based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.