Climate Insights for Monte Argentario

The climate in Monte Argentario is temperate. The average annual temperature is 18°C and approximately 724mm of precipitation falls per year. November is the wettest month, receiving around 134mm of rainfall. Monte Argentario is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 10°C.

Monte Argentario sees moderate temperature variation throughout the year, ranging from 10°C to 27°C. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 26°C. January is the coolest month, with minimum temperatures around 10°C and an average of 12°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between May and June, with a 4°C shift in average temperatures.

Monte Argentario is a relatively dry area, receiving approximately 724mm of precipitation annually, which averages out to around 60mm per month. The wettest month is November, averaging 134mm of rainfall. October and December also tend to see above-average precipitation. The driest month is July, with just 10mm. That's 124mm less than November, 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.

Monte Argentario is mildly breezy, with an average annual wind speed of 17km/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 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/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 20km/h in winter, 17km/h in spring, 14km/h in summer, 17km/h in autumn.

It is currently summer in Monte Argentario, which began on June 21, 2026. Monte Argentario 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 August at around 27°C, while the coldest stretch bottoms out in January near 10°C. Autumn is next, beginning on September 23, 2026 (8 days from now).

The best time to visit Monte Argentario is during May, June and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 42mm per month. By contrast, August can be uncomfortably hot with highs reaching 27°C, while January is the coldest period with lows dropping to 10°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 Monte Argentario 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. 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.