Monthly weather forecast and climate
Plymouth, United Kingdom

What are the coldest months in Plymouth?

The coldest months are January and February, with an average high-temperature of 8.8°C (47.8°F).

How much does it rain in Plymouth?

Throughout the year, in Plymouth, United Kingdom, there are 142.2 rainfall days, and 1007.3mm (39.7") of precipitation is accumulated.

When is the sea coldest in Plymouth?

With an average sea temperature of 9.5°C (49.1°F), March is the month with the coldest seawater in Plymouth, United Kingdom. At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the driest month in Plymouth?

June is the month with the least rainfall in Plymouth. Rain falls for 8.5 days and accumulates 57.2mm (2.3") of precipitation.

What is the warmest month in Plymouth?

The warmest month in Plymouth, United Kingdom, is August, with an average high-temperature of 20°C (68°F) and an average low-temperature of 13.4°C (56.1°F).

What month is the sea warmest in Plymouth?

With an average sea temperature of 16.9°C (62.4°F), August is the month with the warmest seawater. For most, swimming in 16.9°C (62.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the wettest month in Plymouth?

December is the month with the most rainfall. Rain falls for 14.5 days and accumulates 118.8mm (4.7") of precipitation.
Average temperature - Plymouth, United Kingdom
Average rainfall - Plymouth, United Kingdom

The wettest month (with the highest rainfall) is December (118.8mm).
The driest month (with the lowest rainfall) is June (57.2mm).

Average rainfall days - Plymouth, United Kingdom

The month with the highest number of rainy days is January (15.1 days).
The month with the lowest number of rainy days is June (8.5 days).

Average sea temperature - Plymouth, United Kingdom

The best month for swimming (with the highest average sea temperature) is August (16.9°C).
The coldest month (with the lowest average sea temperature) is March (9.5°C).

Average daylight / Average sunshine - Plymouth, United Kingdom
Average UV index - Plymouth, United Kingdom