Weather in St Croix Island in December 2025
Average weather
Average temperature in St Croix Island in December
The expected average maximum temperature in December is +81°F with a maximum of +82°F and a minimum of +75°F.
The average maximum temperature goes down 25% by the end of the month, compared with the beginning of the month, from +81°F to +79°F.
Is St Croix Island warm or cold in December?
St Croix Island is typically warm in December.
Maximum temperatures go down compared to the previous month from +81°F to +79°F. The minimum temperature also goes down from +77°F to +75°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how December is compared to other months in St Croix Island:
Climate in St Croix Island in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +81°F | +79°F | +79°F | ||||
| Min. temperature | ||||||
| +66°F | +63°F | +68°F | ||||
| Max. temperature | ||||||
| +90°F | +86°F | +84°F | ||||
| Rainfall | ||||||
| 141 mm | 61 mm | 37 mm | ||||
| Wind | ||||||
| 4 m/s | 5 m/s | 5 m/s | ||||
| Humidity | ||||||
| 80% | 78% | 77% | ||||
| Air pressure | ||||||
| 1012 HPa | 1014 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 3 | 4 | 5 | ||||
| Cloudy days | ||||||
| 2 | 4 | 4 | ||||
| Rainy days | ||||||
| 25 | 23 | 22 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +81°F in the day, the average maximum temperature lowers to +79°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 141 mm to 61 mm. It feels drier, as humidity decreases from 80% to 78%. Winds are stronger in comparison to November, going up from 4 m/s to 5 m/s on average. The good news is there are likely to be more sunny days in December, from 3 to 4.
But maybe it is worth considering traveling in January as the weather gets better.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in St Croix Island is gradually decreasing during December, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last December in St Croix Island?
Climate Change Over the Years
The climate in St Croix Island in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1985 (+78°F) and the highest in 2020 (+86°F). The driest year was 1994 with only 509 mm of rainfall, and the wettest year was 2010 with 1690 mm.
FAQ
Is December a good time to visit St Croix Island?
Can you sunbathe in St Croix Island in December?
Is St Croix Island rainy in December?
Is it sunny in St Croix Island in December?
Monthly weather in St Croix Island
Source of the data
For this page, we’ve looked at the typical weather in St Croix Island, 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.
