Castries City
Saint Lucia
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Castries City, Saint Lucia

A high scenic panorama of the beautiful city of Castries, Saint Lucia
A high scenic panorama of the beautiful city of Castries, Saint Lucia
January, the same as December, is a moderately hot winter month in Castries City, Saint Lucia, with average temperature ranging between min 22°C (71.6°F) and max 28°C (82.4°F).

Temperature

The coldest months are January through March and December, with an average high-temperature of 28°C (82.4°F).

Rainfall

In Castries City, in January, it is raining for 17 days, with typically 137mm (5.4") of accumulated precipitation. In Castries City, during the entire year, the rain falls for 208 days and collects up to 2377mm (93.6") of precipitation.

Sea temperature

In Castries City, the average seawater temperature is 27°C (80.6°F). 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

In Castries City, Saint Lucia, the average length of the day in January is 11.4h.

Sunshine

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine in Castries City.

UV index

The average daily maximum UV index in January is 9. A UV Index reading of 8 to 10 represents a very high health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
The average daily UV index of 9 transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the coldest month in Castries City?

January through March and December, with an average high-temperature of 28°C (82.4°F), are the coldest months in Castries City, Saint Lucia.

What is the temperature in January in Castries City?

In January, in Castries City, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 22°C (71.6°F).

How much does it rain in Castries City in January?

In Castries City, during January, the rain falls for 17 days and regularly aggregates up to 137mm (5.4") of precipitation.

What is the sea water temperature in January in Castries City?

In January, the average sea temperature in Castries City 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 average length of the day in January in Castries City?

In January, the average length of the day in Castries City is 11.4h.

What is the month with the most sunshine in Castries City?

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine.

How many hours of sunshine does Castries City have in January?

The average sunshine in January in Castries City, Saint Lucia, is 8h.

What is the UV index reading in January in Castries City?

The average daily maximum UV index in January in Castries City is 9. A UV Index estimate of 8 to 10 represents a very high hazard to health from the exposure to the Sun's UV rays.
Average temperature in January - Castries City, Saint Lucia
  • Average high temperature in January: 28°C

Warmest months (with the highest average high temperature) are May, June, July, August, September and October (30°C).
Months with the lowest average high temperature are January, February, March and December (28°C).

  • Average low temperature in January: 22°C

Months with the highest average low temperature are May, June, July, August and September (24°C).
Coldest months (with the lowest average low temperature) are January, February, March and December (22°C).

Average rainfall in January - Castries City, Saint Lucia
  • Average rainfall in January: 137mm

The wettest month (with the highest rainfall) is October (303mm).
The driest month (with the lowest rainfall) is March (99mm).

Average rainfall days in January - Castries City, Saint Lucia
  • Average rainfall days in January: 17 days

The month with the highest number of rainy days is September (24 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in January - Castries City, Saint Lucia
  • Average sea temperature in January: 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 January / Average sunshine in January - Castries City, Saint Lucia
  • Average daylight in January: 11.4h

Months with the longest days are June and July (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in January: 8h

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

Average UV index in January - Castries City, Saint Lucia
  • Average UV index in January: 9

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