Weather in Castries in January 2026
- January is usually the coldest month of the year in Castries;
Average weather
Average temperature in Castries in January
Going from a maximum of +86°F during the day to a minimum of +72°F during the night, the temperature in January averages around +84°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +84°F to +84°F.
Is Castries warm or cold in January?
Castries is typically warm in January.
Maximum temperatures go down compared to the previous month from +82°F to +81°F. The minimum temperature also goes up from +77°F to +77°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is the coldest month in Castries, here is the comparison with other months:
Climate in Castries in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +82°F | +81°F | +81°F | ||||
| Min. temperature | ||||||
| +70°F | +70°F | +68°F | ||||
| Max. temperature | ||||||
| +90°F | +86°F | +88°F | ||||
| Rainfall | ||||||
| 44 mm | 30 mm | 22 mm | ||||
| Wind | ||||||
| 6 m/s | 6 m/s | 6 m/s | ||||
| Humidity | ||||||
| 77% | 75% | 74% | ||||
| Air pressure | ||||||
| 1013 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 2 | 3 | 2 | ||||
| Cloudy days | ||||||
| 6 | 6 | 7 | ||||
| Rainy days | ||||||
| 23 | 23 | 19 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as good as in December. It’s getting colder in January. From +82°F in the day, the average maximum temperature lowers to +81°F. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 44 mm to 30 mm. It feels drier, as humidity decreases from 77% to 75%. The average wind speed doesn’t change much during January, staying around 6 m/s. The good news is there are likely to be more sunny days in January, from 2 to 3.
February brings much the same weather, it remains good.
Wind
The average wind speed is 7 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Castries is gradually decreasing during January, going from 8 m/s to 4 m/s over the course of the month.
Rain
How was the weather last January in Castries?
Climate Change Over the Years
The climate in Castries in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1989 (+80°F) and the highest in 2024 (+88°F). The driest year was 2015 with only 515 mm of rainfall, and the wettest year was 2010 with 1324 mm.
FAQ
Is January a good time to visit Castries?
Can you sunbathe in Castries in January?
Is Castries rainy in January?
Is it sunny in Castries in January?
Monthly weather in Castries
Source of the data
For this page, we’ve looked at the typical weather in Castries, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
