May weather forecast
Plymouth, United Kingdom

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Weather in May

May reveals a stark contrast from the cold beginnings of the year in Plymouth. As the city teeters on the brink of summer, temperatures escalate to a comfortable 15.6°C (60.1°F), making outdoor activities highly appealing. The city glistens as it receives generous sunlight, illuminating the lively spring colors. Evenings remain cool, offering a perfect balance. Amid the pleasant weather, it is hard to resist venturing outdoors to soak in the spring beauty.

Temperature

May introduces a marginal temperature uplift, with average high-temperatures adjusting from April's cool 12.6°C (54.7°F) to a refreshing 15.6°C (60.1°F). Throughout May, the average low-temperature dips to a chilly 8.8°C (47.8°F).

Rainfall

In Plymouth, in May, during 10.4 rainfall days, 64mm (2.52") of precipitation is typically accumulated. In Plymouth, during the entire year, the rain falls for 142.2 days and collects up to 1007mm (39.65") of precipitation.

Sea temperature

In May, the average sea temperature in Plymouth, United Kingdom, is 11.8°C (53.2°F).
Note: In 11.8°C (53.2°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).

Daylight

In May, the average length of the day is 15h and 29min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:36 pm. On the last day of May, sunrise is at 5:10 am and sunset at 9:17 pm BST.

Sunshine

The average sunshine in May in Plymouth, United Kingdom, is 7.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Plymouth. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

What is the usual temperature for Plymouth in May?

Plymouth in May has an average high-temperature of 15.6°C (60.1°F) and an average low-temperature of 8.8°C (47.8°F).

How many days does it rain in May in Plymouth?

In Plymouth, during May, the rain falls for 10.4 days and regularly aggregates up to 64mm (2.52") of precipitation.

What is the sea water temperature in May in Plymouth?

In Plymouth, in May, the average water temperature is 11.8°C (53.2°F). Swimming in 11.8°C (53.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Plymouth have in May?

The average day length in May is 15h and 29min.

When are sunrise and sunset in May in Plymouth?

On the first day of May in Plymouth, sunrise is at 5:50 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 5:10 am and sunset at 9:17 pm BST.

How many hours of sunshine does Plymouth have in May?

In Plymouth, the average sunshine duration in May is 7.3h.

What is the month with the highest UV index in Plymouth?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Plymouth.

How high is the UV index in May in Plymouth?

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in May
Plymouth, United Kingdom

Average temperature in May - Plymouth, United Kingdom
  • Average high temperature in May: 15.6°C

The warmest month (with the highest average high temperature) is August (20°C).
The months with the lowest average high temperature are January and February (8.8°C).

  • Average low temperature in May: 8.8°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).

Average rainfall in May
Plymouth, United Kingdom

Average rainfall in May - Plymouth, United Kingdom
  • Average rainfall in May: 63.8mm

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

Average rainfall days in May
Plymouth, United Kingdom

Average rainfall days in May - Plymouth, United Kingdom
  • Average rainfall days in May: 10.4 days

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

Average sea temperature in May
Plymouth, United Kingdom

Average sea temperature in May - Plymouth, United Kingdom
  • Average sea temperature in May: 11.8°C

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 in May /
Average sunshine in May
Plymouth, United Kingdom

Average daylight in May / Average sunshine in May - Plymouth, United Kingdom
  • Average daylight in May: 15h and 3min

The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).

  • Average sunshine in May: 7h and 2min

The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

Average UV index in May
Plymouth, United Kingdom

Average UV index in May - Plymouth, United Kingdom
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Plymouth, United Kingdom

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