Tortola monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Tortola

Tortola average temperature chart (Celsius) Tortola average temperature chart (Fahrenheit)
Average monthly temperatures in Tortola (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.5 27.7 28 28.6 29.2 29.9 30.2 30.4 30.4 30.2 29.2 28
°F 81.5 81.8 82.4 83.5 84.6 85.9 86.4 86.8 86.8 86.4 84.5 82.3

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Tortola monthly rainfall chart (mm) Tortola monthly rainfall chart (inches)
Average monthly rainfall in Tortola (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 68 54 57 88 129 73 85 124 143 161 161 119
inches 2.7 2.1 2.2 3.5 5.1 2.9 3.4 4.9 5.6 6.3 6.3 4.7
Rainy days 19 15 14 13 16 15 18 20 19 19 20 21

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Tortola

Tortola average daily sunshine chart
Average daily sunshine Tortola
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.5 8.7 9.3 9.3 8.6 8.8 9.2 9.1 8.2 8 7.7 7.9

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Tortola average minimum / maximum temperatures (Celsius) Tortola average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Tortola (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 21.4 21.2 21.5 22 22.8 23.7 24 24.2 24 23.8 23.1 22.1
Max °C 27.7 27.9 28.2 28.8 29.4 30.1 30.4 30.6 30.6 30.4 29.3 28.1
Min °F 70.4 70.1 70.6 71.6 73 74.7 75.2 75.6 75.2 74.8 73.6 71.8
Max °F 76.1 76.1 76.6 77.7 79 80.4 81 81.3 81.1 80.8 79.2 77.2

Sea temperature

The graph below shows the average sea temperature.

Tortola average sea temperature chart (Celsius) Tortola average sea temperature chart (Fahrenheit)
Average sea temperature around Tortola in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 26.5 26.1 26.1 26.6 27.4 28.1 28.3 28.7 28.9 28.8 28.2 27.3
°F 79.7 79 79 79.9 81.3 82.5 82.9 83.6 84.1 83.9 82.8 81.1

Wind speed

The graph below shows the average wind speed.

Tortola average winspeed by month (km/h) Tortola average winspeed by month (mph)
Average wind speed in Tortola (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 18 18 18 17 17 19 18 16 14 16 17
mph 11 11 11 11 10 11 12 11 10 9 10 11

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Tortola relative humidity averages
Average relative humidity in Tortola
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 74% 73% 73% 76% 76% 76% 76% 77% 77% 77% 76%
Tortola

Other monthly averages

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Tortola weather stats

Tortola weather statistics
Hottest month: August 30.4°C 86.7°F
Driest month: February 54mm 2.1ins
Sunniest month: March 9.3hrs
Coldest month: January 27.5°C 81.5°F
Wettest month: October 161mm 6.3ins
Warmest sea: September 28.9°C 84°F
Map showing location of Tortola (18.43662, -64.61849)

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