March weather forecast
Castries City, Saint Lucia

The arrival of March in the city marks a slight transition in weather conditions. With a minor storm getting over, March sees just 99mm (3.9") of precipitation spread evenly over 13 days. Shiny days are more common, and the sunlight seems to flood the city more brilliantly than before. The weather stays appealing for various activities, including beach visits or hiking. Despite the decrease in precipitation, the city maintains a pleasant temperature and humidity level.

Temperature

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

Rainfall

March is the month with the least rainfall in Castries City. Rain falls for 13 days and accumulates 99mm (3.9") of precipitation.

Sea temperature

February and March, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater.
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

In Castries City, the average length of the day in March is 12h and 4min.
On the first day of March in Castries City, sunrise is at 06:19 and sunset at 18:12. On the last day of the month, sunrise is at 05:59 and sunset at 18:15 AST.

Sunshine

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

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Castries City. A UV Index reading of 11, and higher, represents an extreme health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 12 in March translates into the following recommendations:
Adopt all important safety measures, unprotected skin may burn rapidly. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. 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. Note! Reflective surfaces like sand and water heighten the UV radiation levels.