Falmouth
United Kingdom
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Falmouth, United Kingdom

The last month of the spring, May, is a moderate month in Falmouth, United Kingdom, with temperature in the range of an average high of 13.3°C (55.9°F) and an average low of 10.3°C (50.5°F).

Temperature

In Falmouth, the average high-temperature is practically the same as in April - a mild 13.3°C (55.9°F). The average low-temperature, in Falmouth, is 10.3°C (50.5°F).

Humidity

In May, the average relative humidity is 83%.

Rainfall

In Falmouth, during 10.3 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Falmouth, United Kingdom, during the entire year, the rain falls for 159.4 days and collects up to 367mm (14.45") of precipitation.

Snowfall

January, March through November are months without snowfall in Falmouth.

Sea temperature

In Falmouth, in May, the average water temperature is 12°C (53.6°F).
Note: Swimming in 12°C (53.6°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.

Daylight

In May, the average length of the day is 15.5h.

Sunshine

In Falmouth, the average sunshine is 8.4h.

UV index

In Falmouth, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Falmouth?

In Falmouth, United Kingdom, in May, the average high-temperature is 13.3°C (55.9°F), and the average low-temperature is 10.3°C (50.5°F).

What is the average humidity in May in Falmouth?

In May, the average relative humidity in Falmouth, United Kingdom, is 83%.

How much does it rain in Falmouth in May?

In Falmouth, during May, the rain falls for 10.3 days and regularly aggregates up to 20mm (0.79") of precipitation.

When it does not snow in Falmouth?

January, March through November are months without snowfall.

What is the sea water temperature in May in Falmouth?

In Falmouth, United Kingdom, in May, the average water temperature is 12°C (53.6°F). Swimming in 12°C (53.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Falmouth have in May?

In Falmouth, United Kingdom, the average length of the day in May is 15.5h.

How many hours of sunshine does Falmouth have in May?

In Falmouth, United Kingdom, the average sunshine in May is 8.4h.

How high is the UV index in May in Falmouth?

In Falmouth, United Kingdom, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in May - Falmouth, United Kingdom
  • Average high temperature in May: 13.3°C

The warmest month (with the highest average high temperature) is August (17.6°C).
The month with the lowest average high temperature is February (9.3°C).

  • Average low temperature in May: 10.3°C

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (6.9°C).

Average humidity in May - Falmouth, United Kingdom
  • Average humidity in May: 83%

Months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is February (79%).

Average rainfall in May - Falmouth, United Kingdom
  • Average rainfall in May: 20mm

The wettest month (with the highest rainfall) is November (55mm).
The driest month (with the least rainfall) is July (18mm).

Average rainfall days in May - Falmouth, United Kingdom
  • Average rainfall days in May: 10.3 days

The month with the highest number of rainy days is November (17.1 days).
The month with the least rainy days is September (9.9 days).

Average snowfall in May - Falmouth, United Kingdom
  • Average snowfall in May: 0mm

Months with the highest snowfall are February and December (1mm).
Months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in May - Falmouth, United Kingdom
  • Average snowfall days in May: 0 days

Months with the highest number of snowfall days are February and December (0.5 days).
Months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average sea temperature in May - Falmouth, United Kingdom
  • Average sea temperature in May: 12°C

The best month for swimming (with the highest average sea temperature) is August (17.1°C).
The coldest month (with the lowest average sea temperature) is March (9.7°C).

Average daylight in May / Average sunshine in May - Falmouth, United Kingdom
  • Average daylight in May: 15.5h

The month with the longest days is June (Average daylight: 16.3h).
The month with the shortest days is December (Average daylight: 8.2h).

  • Average sunshine in May: 8.4h

Months with the most sunshine are April and July (Average sunshine: 8.5h).
Months with the least sunshine are January and November (Average sunshine: 4).

Average UV index in May - Falmouth, United Kingdom
  • Average UV index in May: 4

The month with the highest UV index is August (UV index 5).
The month with the lowest UV index is January (UV index 2).