worldweather31°Cexceptionally warm
usually 29°C–29°C
warmer than 99% of similar days
night: exceptionally cool
rain: exceptionally dry
wind: typical
Weather in Saint Croix - 14-day forecast
Detailed weather forecast for Saint Croix, Virgin Islands: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Saint Croix
today🌧️
31°💧 0.4 mm
Sun🌧️
32°💧 1.8 mm
Mon🌧️
31°💧 0.5 mm
Tue🌧️
31°💧 1.8 mm
Wed🌧️
30°💧 3.9 mm
Thu🌧️
30°💧 1.7 mm
Fri🌧️
31°💧 0.5 mm
Sat🌧️
31°💧 1.1 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Saint Croix, the forecast high is 31°C. Typical daytime temperatures at this time of year range from 29°C to 29°C, so it will be exceptionally warm. It is warmer than 99% of similar days.
32°Cexceptionally warm
usually 29°C–29°C
warmer than 99% of similar days
night: exceptionally cool
rain: typical rainfall
wind: typical
31°Cexceptionally warm
usually 29°C–29°C
warmer than 99% of similar days
night: exceptionally cool
rain: less rain than usual
wind: stronger than usual
31°Cexceptionally warm
usually 29°C–29°C
warmer than 99% of similar days
night: exceptionally cool
rain: typical rainfall
wind: stronger than usual
30°Cexceptionally warm
usually 29°C–29°C
warmer than 97% of similar days
night: exceptionally cool
rain: typical rainfall
wind: stronger than usual
30°Cexceptionally warm
usually 29°C–29°C
warmer than 99% of similar days
night: exceptionally cool
rain: typical rainfall
wind: stronger than usual
31°Cexceptionally warm
usually 29°C–29°C
warmer than 99% of similar days
night: exceptionally cool
rain: less rain than usual
wind: stronger than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1984 (27°C) and the warmest was 2023 (31°C). The current forecast averages 31°C - higher than in 100% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Saint Croix
Day-by-day forecast for Saint Croix
Saturday5 September 2026
🌧️31°light rain
Sunday6 September 2026
🌧️32°light rain
Monday7 September 2026
🌧️31°light rain
Tuesday8 September 2026
🌧️31°light rain
Wednesday9 September 2026
🌧️30°light rain
Thursday10 September 2026
🌧️30°light rain
Friday11 September 2026
🌧️31°light rain
Saturday12 September 2026
🌧️31°light rain
Sunday13 September 2026
🌧️31°light rain
Monday14 September 2026
🌧️31°light rain
Tuesday15 September 2026
🌧️30°moderate rain
Wednesday16 September 2026
🌧️30°light rain
Thursday17 September 2026
🌧️29°light rain
Friday18 September 2026
🌧️29°light rain
Saturday19 September 2026
🌧️31°light rain
UV index in Saint Croix - is it safe to sunbathe?
Today the UV index in Saint Croix is 9 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.
Sea temperature - Saint Croix
Water today
29°C
Week avg
30°C
Waves today
0.8 m
How's the water?
very warm
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Nearby and related places
FAQ - Saint Croix weather
What is the weather like in Saint Croix today?
Today it is about 31° during the day and 27° at night, light rain.
How far ahead can I check the forecast for Saint Croix?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.