ClimateAverages

Saint Croix Climate

Saint Croix Island, U.S. Virgin Islands · 98 weather stations within 200 km · records 1782 to 2025

Average annual daytime high
29.2°C
Warmest month · September
30.5°C
Typical daytime high
Coldest month · February
21.9°C
Typical overnight low

Saint Croix has an average annual daytime high of 29.2°C, based on the 1951 to 1980 baseline. Its warmest month is September, when highs typically reach 30.5°C, and its coldest is February, with overnight lows near 21.9°C.

Month by month averages

MonthAvg highAvg low
January27.6°C22.0°C
February27.8°C21.9°CColdest
March28.2°C22.3°C
April28.7°C22.9°C
May29.5°C24.1°C
June30.1°C24.9°C
July30.2°C24.9°C
August30.5°C25.1°C
September30.5°C24.8°CWarmest
October30.1°C24.3°C
November29.4°C23.6°C
December28.0°C22.6°C

Temperature range across the year

20°23°26°29°33°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2023
+1.7°C vs. 1951–1980
Coldest year on record
1784
-1.5°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Saint Croix getting hotter?

Since 1900, Saint Croix's average temperature has risen by +1.6°C. Compared to the earliest station records that begin in 1782, warming totals +1.7°C.

25.9°26.4°27.0°27.5°28.1°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
any time of year

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Saint Croix?

Saint Croix's average annual daytime high is 29.2°C, based on the 1951 to 1980 baseline period. The warmest month is September, with highs averaging 30.5°C, and the coldest is February, with lows averaging 21.9°C.

What is the warmest month in Saint Croix?

September is the warmest month in Saint Croix, with typical daytime highs of 30.5°C.

What is the hottest year on record for Saint Croix?

2023 is the hottest year on record for Saint Croix, running +1.7°C above the 1951 to 1980 baseline.

Is Saint Croix getting hotter?

Yes. Since 1900, Saint Croix has warmed by roughly +1.6°C.

When is the best time to visit Saint Croix?

any time of year typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.