The climate in the British Virgin Islands is tropical, hot throughout the year, and also influenced by the trade winds, with a more pleasant period, from December to March, when the daily average temperature is around 24/25 °C (75/77 °F), and a hotter and sultry period, from May to October, when the daily averages are around 28 °C (82 °F).
The British Virgin Islands are located in the Caribbean Sea, in the Lesser Antilles. The main islands are Tortola, Anegada and Virgin Gorda.
Here are the average temperatures of Road Town, the capital, in the island of Tortola.
Average temperatures - Road Town

Road Town	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Road Town	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	21	21	21	22	23	24	24	24	24	24	23	22
Max (°C)	28	28	28	29	29	30	30	31	31	30	29	28
Min (°F)	70	70	70	72	73	75	75	75	75	75	73	72
Max (°F)	82	82	82	84	84	86	86	88	88	86	84	82

As regards the rainfall, there is a relatively dry season from January to April, and a rainy season from May to December, the latter having a relative decrease in June and July. The least rainy months, in which precipitation doesn't go above 50 millimetres (2 inches) per month, are February and March. The annual amount of rainfall is around 1,000/1,200 mm (40/47 in) per year, and generally is slightly more abundant in the northern slopes of each island, in particular those with hills or low mountains in inland areas, such as Tortola and Virgin Gorda.
In April and May there's an increase in rainfall, although in June and July there is often a new relative decrease, followed by a recovery from August to November. Generally, the wettest period goes from September to November.
Here is the average precipitation.
Average precipitation - Road Town

Road Town	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Road Town	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	70	50	50	60	105	75	85	110	145	145	130	80	1105
Prec.(in)	2.8	2	2	2.4	4.1	3	3.3	4.3	5.7	5.7	5.1	3.1	43.5
Days	11	8	8	9	11	9	10	12	14	14	13	12	131

Apart from hurricanes, which can bring strong winds and torrential rains but fortunately occur rarely (see below), normally the weather is nice or variable, interrupted by brief showers and thunderstorms, more likely and more intense during the rainy season, which means that in any case the sun shines all year round, as you can see in the following table.
Sunshine - Road Town

Road Town	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Road Town	J	F	M	A	M	J	J	A	S	O	N	D
Sun (hours)	8	8	9	9	8	8	9	9	8	8	7	7

For swimming, the sea is warm all year round, about 26 °C (79 °F) from January to April, and 29 °C (84 °F) in September and October, as we can see from the water temperatures at Anegada.
Sea temperature - Anegada

Anegada	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Anegada	J	F	M	A	M	J	J	A	S	O	N	D
Sea (°C)	26	26	26	26	27	28	28	28	29	29	28	27
Sea (°F)	79	79	79	79	81	82	82	82	84	84	82	81

From June to November, here as in the whole area of the West Indies, there is the danger of tropical storms and hurricanes, with greater probability from August to October.


The best time to visit the British Virgin Islands runs from December to April, being the least rainy and the least muggy. Within this period, the months of January, February and March are the driest and the least hot of all. In summer, June and July are generally less rainy than August and September, and have also a lower risk of tropical storms and hurricanes, which are most likely between August and October, that is, when the sea is warmer.


From December to April: light clothes, possibly a scarf for the breeze and a sweatshirt for the evening.
From May to November: lightweight clothing, possibly a light sweatshirt and a light raincoat for thunderstorms; sweatshirt and pashmina for air-conditioned places.