January weather forecast
Castries City, Saint Lucia

January tops the year off in Castries City, with consistent warmth and a slight chance of rain. Rainfall tends to be on the heavier side, with a monthly total of 137mm (5.39") over 17 days. Transparency in the air coupled with the warmth gives the city a distinctive charm in the new year. The sunny weather allows for outdoor activities, while evenings bring a pleasant coolness. Although the temperature might not see a drastic shift, the weather remains pleasant throughout the month.

Temperature

Castries City witnesses its lowest temperatures during January through March and December, when the average high-temperature reaches 28°C (82.4°F).

Rainfall

In Castries City, in January, it is raining for 17 days, with typically 137mm (5.39") of accumulated precipitation. Throughout the year, in Castries City, there are 208 rainfall days, and 2377mm (93.58") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature in Castries City is 27°C (80.6°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In Castries City, the average length of the day in January is 11h and 25min.
On the first day of the month, sunrise is at 06:27 and sunset at 17:46. On the last day of January, in Castries City, sunrise is at 06:31 and sunset at 18:03 AST.

Sunshine

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

UV index

The average daily maximum UV index in January in Castries City, Saint Lucia, is 9. A UV Index of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 9 in January leads to these recommendations:
Never neglect to protect yourself. Eyes and skin can suffer swift damage. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days. Sunscreen with a sun protection factor of no less than 30 should be used liberally and reapplied frequently on overcast days, including after every swim or outdoor activity. Take heed! Reflections of sand and water make the Sun's UV rays stronger.