Weather in St John

St John, Virgin Islands

Average Seasonal Temperatures

The variation between the average hottest summer day and the average coolest winter day is about 18 degrees. Below is a table with average highs and lows by month.

ISLAND / SEASON	SPRING	SUMMER	FALL	WINTER
ISLAND / SEASON	MAR-MAY	JUN-AUG	SEPT-NOV	DEC-FEB
St. Thomas & Water Island	80.5	83.9	82.5	79
St. Croix	80.1	83.6	82	78.5
St. John	78.5	82.3	81	77

Air Temperatures

June, July and August tend to be the hottest months with temperatures in the mid 80s and December through February cooler months with high 70 degree temperatures.

The variation between the average hottest summer day and the average coolest winter day is about 18 degrees. Below is a table with average highs and lows by month.

Maximum and Minimum Air Temperature by Month

MONTH / ISLAND	ST. THOMAS		ST. CROIX		ST. JOHN
MONTH / ISLAND	MAX	MIN	MAX	MIN	MAX	MIN
January	85	72	84	72	84	70
February	85	72	84	72	84	70
March	86	73	85	72	84	70
April	87	74	86	74	85	72
May	88	76	87	76	86	74
June	89	78	88	78	88	76
July	90	78	89	78	89	76
August	90	78	90	78	89	76
September	90	77	89	77	89	75
October	89	76	89	76	88	74
November	87	75	87	74	87	73
December	86	73	85	73	85	71

Max and Min Air Temperature

While the weather person can expect to say about the same thing everyday while on the job in the Virgin Islands there are weather extremes that come along and make things interesting. The hottest temperature recorded between 1972 and 2004 was 99 degrees. This sweltering heat was experienced in August 1979, July 1988 and June 1996. The lowest temperature recorded was 52 degrees in November 1999 on St. Thomas, followed by 55 degrees in March 1991 on St. John and 57 degrees on April 1997 on St. Croix.

Average and Record Rainfall by Month in Inches

MONTH / ISLAND	ST. THOMAS			ST. CROIX			ST. JOHN
MONTH / ISLAND	AVG.	HIGH	LOW	AVG.	HIGH	LOW	AVG.	HIGH	LOW
January	1.86	4.67	.82	2.06	3.74	.54	2.60	5.23	.75
February	1.53	3.31	.42	1.85	4.23	.18	2.06	4.84	.65
March	1.58	6.23	.01	1.74	4.15	.48	2.03	5.27	.17
April	2.76	11.20	.48	1.85	8.24	0	3.65	13.58	1.18
May	3.34	9.98	.47	3.69	14.03	.22	4.08	13.87	.56
June	2.50	6.97	.18	2.18	7.83	.10	2.37	5.11	.03
July	2.44	4.84	.74	2.89	6.11	.49	3.28	6.22	1.02
August	3.41	6.38	.70	3.69	11.41	1.40	4.35	7.87	1.09
September	4.95	11.43	1.08	5.28	21.39	1.07	6.13	16.64	.79
October	5.35	12.45	2.00	5.44	16.20	1.55	5.02	12.68	1.05
November	5.70	18.39	1.35	6.21	16.34	1.11	6.45	18.91	1.55
December	2.95	6.66	.25	3.41	9.07	1.38	3.28	9.72	1.15
Avg Year	38.37″			40.29″			45.30″

Rainfall by Month in Inches

Rainy months does not mean that there is continuous rainfall every day all month long, in fact most daily rainfall reports are below .10 inches. Rain showers are often short and typically occur early in the morning or at night. On a truly rainy day, it will rain off and on for the entire day. All day downpours over numerous days are not common. The driest months are typically February and March.

The Virgin Islands are known for its beautiful weather – we do not have great seasonal changes…

The weather temps are fairly consistent.