St Johnston Village
Antigua and Barbuda
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
St Johnston Village, Antigua and Barbuda

December, the first month of the winter, in St Johnston Village, is also a moderately hot month, with average temperature fluctuating between 23°C (73.4°F) and 29°C (84.2°F).

Temperature

In December, the average high-temperature is almost the same as in November - a moderately hot 29°C (84.2°F). The average low-temperature, in St Johnston Village, is 23°C (73.4°F).

Rainfall

In St Johnston Village, Antigua and Barbuda, during December, the rain falls for 17 days and regularly aggregates up to 88mm (3.5") of precipitation. Throughout the year, in St Johnston Village, there are 180 rainfall days, and 1040mm (40.9") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in St Johnston Village 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.

Daylight

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

Sunshine

September through December, with an average of 7h of sunshine, are months with the least sunshine in St Johnston Village.

UV index

January and December, with an average maximum UV index of 8, are months with the lowest UV index. A UV Index reading of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
The daily maximum UV index of 8 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in December in St Johnston Village?

In St Johnston Village, Antigua and Barbuda, in December, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in December in St Johnston Village?

In December, in St Johnston Village, Antigua and Barbuda, the rain falls for 17 days. Throughout December, 88mm (3.5") of precipitation is accumulated.

How warm is the water in December in St Johnston Village?

In St Johnston Village, Antigua and Barbuda, the average seawater temperature in December 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 St Johnston Village?

December has the shortest days of the year in St Johnston Village, with an average of 11.1h of daylight.

How many hours of daylight does St Johnston Village have in December?

The average length of the day in December in St Johnston Village is 11.1h.

What is the month with the least sunshine in St Johnston Village?

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

How many hours of sunshine does St Johnston Village have in December?

In St Johnston Village, the average sunshine in December is 7h.

When is the lowest UV index in St Johnston Village?

January and December, with an average maximum UV index of 8, are months with the lowest UV index in St Johnston Village, Antigua and Barbuda.

What is the UV index intensity in December in St Johnston Village?

In December, the average daily maximum UV index in St Johnston Village, Antigua and Barbuda, is 8. A UV Index of 8 to 10 symbolizes a very high hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - St Johnston Village, Antigua and Barbuda
  • Average high temperature in December: 29°C

Warmest months (with the highest average high temperature) are July, August and September (31°C).
Months with the lowest average high temperature are January and February (28°C).

  • Average low temperature in December: 23°C

Months with the highest average low temperature are June, July, August and September (25°C).
Coldest months (with the lowest average low temperature) are January, February and March (22°C).

Average rainfall in December - St Johnston Village, Antigua and Barbuda
  • Average rainfall in December: 88mm

The wettest month (with the highest rainfall) is September (140mm).
The driest month (with the lowest rainfall) is February (37mm).

Average rainfall days in December - St Johnston Village, Antigua and Barbuda
  • Average rainfall days in December: 17 days

Months with the highest number of rainy days are September, October, November and December (17 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in December - St Johnston Village, Antigua and Barbuda
  • Average sea temperature in December: 27°C

The best month for swimming (with the highest average sea temperature) is September (29°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).

Average daylight in December / Average sunshine in December - St Johnston Village, Antigua and Barbuda
  • 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 - St Johnston Village, Antigua and Barbuda
  • 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).