St Thomas Cruising Conditions

General Conditions

During the winter months (November to January) the wind is from the north-east averaging 15 to 20 knots. The Christmas winds can produce 25 to 30 knots for several days at a time. In February, the wind moves to the east and by June it changes to the south-east averaging 10 to 15 knots. In September and October, the trade winds are at their weakest and the weather can be less settled. By November the high pressure system around Bermuda starts to stabilise and 15 to 20-knot breezes become the norm. Immediate weather conditions can be found at http://www.weather.com.

Local seas
Local seas are “relaxed” seas and generally in the 3 to 4 foot range.

Historical weather (Averages by month):

Month	F Max	F Min	C Max	C Min	Ave Precip (in)	Ave Precip (mm)	Ave Water Temp (°F)	Ave Water Temp (°C)	Ave Wind Speed (knots)
January	83	75	28	24	3	76	77	25	NE 15-25
February	83	75	28	24	2	50	77	25	E 15-25
March	83	75	28	24	2	50	78	26	E 15-25
April	84	77	29	25	3	76	80	27	E 15-25
May	86	78	30	26	4	101	82	28	SE 15-20
June	88	80	31	27	3	76	83	28	SE 15-20
July	88	80	31	27	3	76	84	29	SE 15-20
August	88	80	31	27	5	127	85	29	SE 15-20
September	88	80	31	27	5	127	84	29	SE 5-15
October	87	80	31	27	4	101	83	28	SE 5-15
November	85	78	29	26	5	127	82	28	NE 5-20
December	83	76	28	24	4	101	80	27	NE 15-25

Weather forecasts
Charterers can obtain the weather situation at any time by listening to the maritime weather forecasts. Weather updates are given hourly during severe weather.