Climate Insights for Falmouth

The climate in Falmouth is hot. The average annual temperature is 27°C and approximately 1453mm of precipitation falls per year. Falmouth receives a notable amount of rainfall throughout the year, including during its driest month. Falmouth 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 February, January, March, when temperatures can drop to 23°C.

Falmouth has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 28°C. February is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.

Falmouth is a fairly wet location, receiving approximately 1453mm of precipitation annually, which averages out to around 121mm per month. The wettest month is October, averaging 214mm of rainfall. May and September also tend to see above-average precipitation. The driest month is February, with just 49mm. That's 165mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Falmouth is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, 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 6km/h gap between the calmest and windiest months.

It is currently autumn in Falmouth, which began on September 23, 2026. Falmouth 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 31°C, while the coldest stretch bottoms out in February near 23°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Falmouth is during January, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 53mm per month. By contrast, August can be uncomfortably hot with highs reaching 31°C, while February is the coldest period with lows dropping to 23°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 Falmouth 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.