Castries Weather in January
January in Castries typically sees daytime highs of 29°C (84°F) and nighttime lows of 24°C (75°F). Expect some rainfall during the month.
Rainfall in Castries in January
Climate statistics over the past 30 years suggest around 17 days of rain, with 45 mm (1.8 in) average for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Castries in January
The temperature in Castries in January is perfect. Daytime highs reach 29°C (84°F), with nights dropping to 24°C (75°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Castries in January
With approximately 245 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Lucia, check out our Castries's climate page.
Castries Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
58%
Precipitation
45 mm (1.8 in)
Rainy days
17 days
Humidity
80% *
Sunshine
245 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Castries typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in January
Historical weather for Castries in January
Browse day-by-day weather records for Castries spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Castries historical weather extremes in January
Based on weather observations in Castries between 1985 and 2025, these are the recorded extremes during January.
- The warmest day in January was on January 30, 2024, with a maximum of 31°C (88°F).
- Castries experienced its chilliest January day on January 27, 2019, reaching only 25°C (77°F).
- Nighttime temperatures dropped to 17°C (63°F) on January 24, 1996, marking the coldest January night on record.
Best Places in Saint Lucia in January
Find out more about the weather in Saint Lucia and which places have the best travel conditions in this month. See all of Saint Lucia in January →
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What to Wear in Castries in January
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Castries in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Lucia, check out our Castries's climate page.
Temperature Rainfall Sunshine Humidity
See the full Castries climate overview or explore weather in Saint Lucia.
