Plymouth
Montserrat
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Plymouth, Montserrat

A beautiful day in the mountainous island of Plymouth, Montserrat
A beautiful day in the mountainous island of Plymouth, Montserrat
The first month of the winter, December, is still a warm month in Plymouth, Montserrat, with average temperature fluctuating between 29°C (84.2°F) and 23°C (73.4°F).

Temperature

January and December, with an average high-temperature of 29°C (84.2°F), are the coldest months.

Rainfall

In December, the rain falls for 20 days. Throughout December, 140mm (5.5") of precipitation is accumulated. In Plymouth, during the entire year, the rain falls for 212 days and collects up to 1640mm (64.6") of precipitation.

Sea temperature

In December, the average sea temperature is 27°C (80.6°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

With an average of 11.1h of daylight, December has the shortest days of the year.

Sunshine

September through December, with an average of 7h of sunshine, are months with the least sunshine in Plymouth, Montserrat.

UV index

Months with the lowest UV index in Plymouth are January and December, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the coldest month in Plymouth?

The coldest months are January and December, with an average high-temperature of 29°C (84.2°F).

What is the temperature in December in Plymouth?

In Plymouth, in December, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in Plymouth in December?

In December, in Plymouth, Montserrat, the rain falls for 20 days. Throughout December, 140mm (5.5") of precipitation is accumulated.

What is the sea water temperature in December in Plymouth?

In December, the average sea temperature is 27°C (80.6°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Plymouth?

The month with the shortest days in Plymouth, Montserrat, is December, with an average of 11.1h of daylight.

How many hours of daylight does Plymouth have in December?

In December, the average length of the day is 11.1h.

What is the month with the least sunshine in Plymouth?

Months with the least sunshine in Plymouth are September through December, with an average of 7h of sunshine.

How many hours of sunshine does Plymouth have in December?

The average sunshine in December in Plymouth is 7h.

What are the months with the lowest UV index in Plymouth?

Months with the lowest UV index are January and December, with an average maximum UV index of 8.

How high is the UV index in December in Plymouth?

In December, the average daily maximum UV index in Plymouth is 8. A UV Index reading of 8 to 10 represents a very high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in December - Plymouth, Montserrat
  • Average high temperature in December: 29°C

Warmest months (with the highest average high temperature) are July and August (33°C).
Months with the lowest average high temperature are January and December (29°C).

  • Average low temperature in December: 23°C

Months with the highest average low temperature are June, July and August (25°C).
Coldest months (with the lowest average low temperature) are January, February and December (23°C).

Average rainfall in December - Plymouth, Montserrat
  • Average rainfall in December: 140mm

The wettest month (with the highest rainfall) is October (196mm).
The driest month (with the lowest rainfall) is February (86mm).

Average rainfall days in December - Plymouth, Montserrat
  • Average rainfall days in December: 20 days

The month with the highest number of rainy days is October (21 days).
Months with the lowest number of rainy days are February and April (14 days).

Average sea temperature in December - Plymouth, Montserrat
  • Average sea temperature in December: 27°C

Best months for swimming (with the highest average sea temperature) are September and October (29°C).
Coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in December / Average sunshine in December - Plymouth, Montserrat
  • Average daylight in December: 11.1h

The month with the longest days is June (Average daylight: 13.1h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in December: 7h

Months with most sunshine are January, February, March, April, May, June, July and August (Average sunshine: 8h).
Months with least sunshine are September, October, November and December (Average sunshine: 7).

Average UV index in December - Plymouth, Montserrat
  • Average UV index in December: 8

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are January and December (UV index 8).