Saint Thomas, Us Virgin Islands Climate

Weather: 28.68°C/83.62°F, Wind SW at 4.12 km/h, 79% Humidity, 0% Chance of rain

US Virgin Islands
(Photo by JJ Shev on Unsplash)
Contents

Saint Thomas Climate Summary

Located at an elevation of 52.41 meters (171.95 feet) above sea level, Saint Thomas has a Tropical monsoon climate (Classification: Am). The city’s yearly temperature is 27.09ºC (80.76ºF) and it is -0.05% lower than US Virgin Islands’s averages. Saint Thomas typically receives about 161.78 millimeters (6.37 inches) of precipitation and has 238.0 rainy days (65.21% of the time) annually.

Country US Virgin Islands
Longitude -64.8940946
Latitude 18.3380965
Attitude/Elevation 52.41m (171.95ft)
Local time Tuesday 05:04
Annual high temperature 27.68ºC (81.82ºF)
Annual low temperature 26.26ºC (79.27ºF)
Average annual precip. 161.78mm (6.37in)
Warmest month September (29.15ºC / 84.47ºF)
Coldest Month March (24.73ºC / 76.51ºF)
Wettest Month November (264.96mm / 10.43in)
Driest Month February (71.77mm / 2.83in)
Number of days with rainfall (≥ 1.0 mm) 238.0 days (65.21%)
Days with no rain 127.0 days (34.79%)
Humidity 76.35%

Climate Saint Thomas: Monthly Averages

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 28.0(82.4) 28.0(82.4) 28.0(82.4) 29.0(84.2) 29.0(84.2) 30.0(86.0) 30.0(86.0) 30.0(86.0) 30.0(86.0) 30.0(86.0) 30.0(86.0) 29.0(84.2) 30.0(86.0)
Average high °C (°F) 26.47(79.65) 26.21(79.18) 26.13(79.03) 26.77(80.19) 27.55(81.59) 28.25(82.85) 28.52(83.34) 28.94(84.09) 29.15(84.47) 28.98(84.16) 28.14(82.65) 27.09(80.76) 27.68(81.82)
Daily mean °C (°F) 25.89(78.6) 25.64(78.15) 25.57(78.03) 26.1(78.98) 26.88(80.38) 27.65(81.77) 27.95(82.31) 28.29(82.92) 28.52(83.34) 28.4(83.12) 27.55(81.59) 26.6(79.88) 27.09(80.76)
Average low °C (°F) 25.06(77.11) 24.82(76.68) 24.73(76.51) 25.32(77.58) 26.05(78.89) 26.86(80.35) 27.17(80.91) 27.52(81.54) 27.69(81.84) 27.54(81.57) 26.62(79.92) 25.7(78.26) 26.26(79.27)
Record low °C (°F) 18.0(64.4) 19.0(66.2) 19.0(66.2) 19.0(66.2) 20.0(68.0) 21.0(69.8) 21.0(69.8) 20.0(68.0) 21.0(69.8) 21.0(69.8) 20.0(68.0) 19.0(66.2) 18.0(64.4)
Average precipitation mm (inches) 82.35(3.24) 71.77(2.83) 100.03(3.94) 89.83(3.54) 185.92(7.32) 116.22(4.58) 159.27(6.27) 249.99(9.84) 264.03(10.39) 246.5(9.7) 264.96(10.43) 110.53(4.35) 161.78(6.37)
Average precipitation days (≥ 1.0 mm) 19.09 17.0 15.0 16.0 19.36 16.27 20.82 21.91 23.09 24.0 24.55 20.91 19.83
Average relative humidity (%) 74.83 75.07 75.29 76.14 78.13 78.52 78.35 77.96 76.48 75.19 75.4 74.8 76.35
Mean monthly sunshine hours 10.24 11.14 10.84 11.68 12.59 12.74 12.79 11.53 10.86 9.12 8.08 8.11 10.81

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Saint Thomas in recent years.

Saint Thomas

Saint Thomas Temperature by Month

September
28.52°C | 83.34°F
October
28.4°C | 83.12°F
August
28.29°C | 82.92°F
July
27.95°C | 82.31°F
June
27.65°C | 81.77°F
November
27.55°C | 81.59°F
May
26.88°C | 80.38°F
December
26.6°C | 79.88°F
April
26.1°C | 78.98°F
January
25.89°C | 78.6°F
February
25.64°C | 78.15°F
March
25.57°C | 78.03°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Temperature Max Average Min
Max Temperature 27.0°C (80.6°F) 25.9°C (78.62°F) 25.0°C (77.0°F)
Avg Temperature 26.0°C (78.8°F) 25.55°C (77.99°F) 24.0°C (75.2°F)
Min Temperature 26.0°C (78.8°F) 25.1°C (77.18°F) 24.0°C (75.2°F)
Dew Point Max Average Min
Dew Point 23.0°C (73.4°F) 20.55°C (68.99°F) 16.0°C (60.8°F)
Precipitation Max Average Min Sum
Precipitation 4.7mm | 0.19in 1.13mm | 0.04in 0.0mm | 0in 34.9mm | 1.37in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 29.0kmh | 18.02mph 19.19kmh | 11.92mph 10.0kmh | 6.21mph
Gust Wind 41.0kmh | 25.48mph 26.29kmh | 16.34mph 14.0kmh | 8.7mph
Sea Level Pressure Max Average Min
Sea Level Pressure 4.7mb 1.13mb 0.0mb
Saint Thomas

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
March ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2018-03-01 25 | 77.0 20 | 68.0 73 16 | 9.94 30.03 | 1017 0.5 | 0.02
2018-03-02 25 | 77.0 19 | 66.2 69 15 | 9.32 30.0 | 1016 0.8 | 0.03
2018-03-03 25 | 77.0 19 | 66.2 68 12 | 7.46 29.91 | 1013 0.0 | 0.0
2018-03-04 25 | 77.0 20 | 68.0 72 23 | 14.29 29.83 | 1010 2.8 | 0.11
2018-03-05 24 | 75.2 19 | 66.2 69 21 | 13.05 29.88 | 1012 2.7 | 0.11
2018-03-06 25 | 77.0 16 | 60.8 60 16 | 9.94 30.0 | 1016 0.0 | 0.0
2018-03-07 25 | 77.0 18 | 64.4 66 21 | 13.05 30.06 | 1018 0.0 | 0.0
2018-03-08 25 | 77.0 22 | 71.6 81 20 | 12.43 30.03 | 1017 1.1 | 0.04
2018-03-09 26 | 78.8 23 | 73.4 84 21 | 13.05 30.06 | 1018 1.1 | 0.04
2018-03-10 26 | 78.8 23 | 73.4 81 28 | 17.4 30.06 | 1018 0.5 | 0.02
2018-03-11 26 | 78.8 22 | 71.6 78 29 | 18.02 30.06 | 1018 0.5 | 0.02
2018-03-12 26 | 78.8 21 | 69.8 76 27 | 16.78 30.0 | 1016 0.1 | 0.0
2018-03-13 26 | 78.8 22 | 71.6 77 18 | 11.18 30.03 | 1017 0.1 | 0.0
2018-03-14 26 | 78.8 22 | 71.6 80 21 | 13.05 30.03 | 1017 0.5 | 0.02
2018-03-15 26 | 78.8 21 | 69.8 75 19 | 11.81 30.03 | 1017 0.8 | 0.03
2018-03-16 26 | 78.8 22 | 71.6 77 19 | 11.81 30.03 | 1017 0.4 | 0.02
2018-03-17 26 | 78.8 22 | 71.6 77 17 | 10.56 30.0 | 1016 0.8 | 0.03
2018-03-18 26 | 78.8 21 | 69.8 74 13 | 8.08 29.94 | 1014 4.7 | 0.19
2018-03-19 26 | 78.8 20 | 68.0 71 10 | 6.21 29.91 | 1013 0.7 | 0.03
2018-03-20 26 | 78.8 21 | 69.8 73 19 | 11.81 29.97 | 1015 0.0 | 0.0
2018-03-21 26 | 78.8 22 | 71.6 78 24 | 14.91 30.03 | 1017 0.1 | 0.0
2018-03-22 26 | 78.8 22 | 71.6 78 20 | 12.43 30.03 | 1017 4.4 | 0.17
2018-03-23 26 | 78.8 22 | 71.6 76 17 | 10.56 30.0 | 1016 4.0 | 0.16
2018-03-24 26 | 78.8 20 | 68.0 73 11 | 6.84 30.0 | 1016 0.9 | 0.04
2018-03-25 26 | 78.8 20 | 68.0 74 16 | 9.94 30.0 | 1016 0.2 | 0.01
2018-03-26 26 | 78.8 21 | 69.8 76 17 | 10.56 30.0 | 1016 1.2 | 0.05
2018-03-27 25 | 77.0 20 | 68.0 75 14 | 8.7 29.97 | 1015 3.6 | 0.14
2018-03-28 25 | 77.0 21 | 69.8 75 22 | 13.67 29.97 | 1015 0.9 | 0.04
2018-03-29 25 | 77.0 19 | 66.2 70 26 | 16.16 30.0 | 1016 0.4 | 0.02
2018-03-30 25 | 77.0 18 | 64.4 68 24 | 14.91 30.0 | 1016 0.2 | 0.01
2018-03-31 25 | 77.0 19 | 66.2 68 19 | 11.81 29.94 | 1014 0.9 | 0.04

Saint Thomas 10 Year Historical Weather Data

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