Climate Insights for Plymouth

The climate in Plymouth is temperate. The average annual temperature is 12°C and approximately 1,071 mm of precipitation falls per year. Plymouth receives a notable amount of rainfall throughout the year, including during its driest month. Plymouth 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 7°C.The climate in Plymouth is temperate. The average annual temperature is 54°F and approximately 42.2 in of precipitation falls per year. Plymouth receives a notable amount of rainfall throughout the year, including during its driest month. Plymouth 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 44°F.

Plymouth sees moderate temperature variation throughout the year, ranging from 7°C to 18°C. August is the warmest month, though highs remain moderate at 18°C with a mean of 17°C. January is the coolest month, with minimum temperatures around 7°C and an average of 8°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between May and June, with a 3°C shift in average temperatures.Plymouth sees moderate temperature variation throughout the year, ranging from 44°F to 65°F. August is the warmest month, though highs remain moderate at 65°F with a mean of 62°F. January is the coolest month, with minimum temperatures around 44°F and an average of 47°F. Daily temperature variation is modest, with an average difference of 5°F between highs and lows. The sharpest temperature change occurs between May and June, with a 5°F shift in average temperatures.

Plymouth is a moderately rainy area, receiving approximately 1,071 mm of precipitation annually, which averages out to around 89 mm per month. The wettest month is November, averaging 129 mm of rainfall. December and October also tend to see above-average precipitation. The driest month is May, with just 58 mm. That's 71 mm less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Plymouth is a moderately rainy area, receiving approximately 42.2 in of precipitation annually, which averages out to around 3.5 in per month. The wettest month is November, averaging 5.1 in of rainfall. December and October also tend to see above-average precipitation. The driest month is May, with just 2.3 in. That's 2.8 in less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Plymouth is moderately windy, with an average annual wind speed of 23km/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 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 19km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/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 27km/h in winter, 22km/h in spring, 19km/h in summer, 24km/h in autumn.Plymouth is very windy, with an average annual wind speed of 14mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 17mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 12mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5mph 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 17mph in winter, 13mph in spring, 12mph in summer, 15mph in autumn.

The best time to visit Plymouth is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 71 mm per month. By contrast, January can be quite cold with temperatures dropping to 7°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Plymouth is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 61°F with modest rainfall averaging 2.8 in per month. By contrast, January can be quite cold with temperatures dropping to 44°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Plymouth 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.The table below shows monthly climate averages for Plymouth based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.