São Tomé, Sao Tome And Principe Climate

Weather: 26°C/78.44°F, Wind SW at 3.6 km/h, 95% Humidity, 0% Chance of rain

Sao Tome and Principe
(Photo by Eden Constantino on Unsplash)
Contents

São Tomé Climate Summary

Located at an elevation of 18.23 meters (59.81 feet) above sea level, São Tomé has a Tropical wet and dry or savanna ('summer' dry season) climate (Classification: As). The city’s yearly temperature is 26.54ºC (79.77ºF) and it is 0.0% lower than Sao Tome and Principe’s averages. São Tomé typically receives about 218.05 millimeters (8.58 inches) of precipitation and has 220.56 rainy days (60.43% of the time) annually.

Country Sao Tome and Principe
Longitude 6.733343
Latitude 0.3301924
Attitude/Elevation 18.23m (59.81ft)
Local time Wednesday 01:28
Annual high temperature 27.94ºC (82.29ºF)
Annual low temperature 25.36ºC (77.65ºF)
Average annual precip. 218.05mm (8.58in)
Warmest month April (29.71ºC / 85.48ºF)
Coldest Month July (22.8ºC / 73.04ºF)
Wettest Month November (494.61mm / 19.47in)
Driest Month July (21.74mm / 0.86in)
Number of days with rainfall (≥ 1.0 mm) 220.56 days (60.43%)
Days with no rain 144.44 days (39.57%)
Humidity 79.4%

Climate São Tomé: Monthly Averages

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 31.0(87.8) 31.0(87.8) 32.0(89.6) 32.0(89.6) 31.0(87.8) 30.0(86.0) 28.0(82.4) 28.0(82.4) 28.0(82.4) 29.0(84.2) 30.0(86.0) 31.0(87.8) 32.0(89.6)
Average high °C (°F) 28.87(83.97) 29.28(84.7) 29.63(85.33) 29.71(85.48) 28.84(83.91) 26.89(80.4) 25.68(78.22) 25.97(78.75) 26.65(79.97) 27.51(81.52) 28.03(82.45) 28.2(82.76) 27.94(82.29)
Daily mean °C (°F) 27.88(82.18) 28.15(82.67) 28.26(82.87) 28.06(82.51) 27.13(80.83) 25.18(77.32) 23.98(75.16) 24.16(75.49) 25.1(77.18) 26.28(79.3) 26.98(80.56) 27.33(81.19) 26.54(79.77)
Average low °C (°F) 26.83(80.29) 26.87(80.37) 27.23(81.01) 26.8(80.24) 25.9(78.62) 24.15(75.47) 22.8(73.04) 22.96(73.33) 23.88(74.98) 24.94(76.89) 25.6(78.08) 26.39(79.5) 25.36(77.65)
Record low °C (°F) 18.0(64.4) 18.0(64.4) 18.0(64.4) 16.0(60.8) 16.0(60.8) 14.0(57.2) 14.0(57.2) 13.0(55.4) 14.0(57.2) 15.0(59.0) 16.0(60.8) 18.0(64.4) 13.0(55.4)
Average precipitation mm (inches) 269.78(10.62) 225.72(8.89) 251.48(9.9) 203.77(8.02) 228.09(8.98) 54.25(2.14) 21.74(0.86) 40.47(1.59) 70.65(2.78) 436.82(17.2) 494.61(19.47) 319.25(12.57) 218.05(8.58)
Average precipitation days (≥ 1.0 mm) 26.73 23.73 24.55 18.91 19.0 4.45 4.18 8.73 11.36 23.82 26.55 28.55 18.38
Average relative humidity (%) 76.48 76.31 75.89 76.21 79.45 80.86 81.48 81.92 82.37 82.39 80.99 78.41 79.4
Mean monthly sunshine hours 11.0 11.15 10.83 10.84 10.46 9.39 8.9 8.23 8.76 9.99 10.07 10.78 10.03

Climate Graph

The chart below shows the mean monthly temperature and precipitation of São Tomé in recent years.

São Tomé Temperature by Month

March
28.26°C | 82.87°F
February
28.15°C | 82.67°F
April
28.06°C | 82.51°F
January
27.88°C | 82.18°F
December
27.33°C | 81.19°F
May
27.13°C | 80.83°F
November
26.98°C | 80.56°F
October
26.28°C | 79.3°F
June
25.18°C | 77.32°F
September
25.1°C | 77.18°F
August
24.16°C | 75.49°F
July
23.98°C | 75.16°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 31.0°C (87.8°F) 29.1°C (84.38°F) 27.0°C (80.6°F)
Avg Temperature 31.0°C (87.8°F) 28.26°C (82.87°F) 27.0°C (80.6°F)
Min Temperature 30.0°C (86.0°F) 27.39°C (81.3°F) 25.0°C (77.0°F)
Dew Point Max Average Min
Dew Point 25.0°C (77.0°F) 23.19°C (73.74°F) 22.0°C (71.6°F)
Precipitation Max Average Min Sum
Precipitation 23.4mm | 0.92in 8.05mm | 0.32in 0.0mm | 0in 249.4mm | 9.82in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 17.0kmh | 10.56mph 9.35kmh | 5.81mph 5.0kmh | 3.11mph
Gust Wind 27.0kmh | 16.78mph 13.35kmh | 8.3mph 6.0kmh | 3.73mph
Sea Level Pressure Max Average Min
Sea Level Pressure 23.4mb 8.05mb 0.0mb

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
January ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2019-01-01 28 | 82.4 23 | 73.4 73 8 | 4.97 29.91 | 1013 13.4 | 0.53
2019-01-02 28 | 82.4 23 | 73.4 74 7 | 4.35 29.91 | 1013 0.8 | 0.03
2019-01-03 28 | 82.4 23 | 73.4 75 10 | 6.21 29.88 | 1012 13.4 | 0.53
2019-01-04 27 | 80.6 22 | 71.6 75 10 | 6.21 29.88 | 1012 6.4 | 0.25
2019-01-05 27 | 80.6 23 | 73.4 77 14 | 8.7 29.91 | 1013 14.7 | 0.58
2019-01-06 27 | 80.6 23 | 73.4 76 14 | 8.7 29.91 | 1013 5.5 | 0.22
2019-01-07 27 | 80.6 22 | 71.6 76 8 | 4.97 29.88 | 1012 9.2 | 0.36
2019-01-08 27 | 80.6 22 | 71.6 75 7 | 4.35 29.88 | 1012 10.9 | 0.43
2019-01-09 28 | 82.4 22 | 71.6 73 7 | 4.35 29.85 | 1011 10.5 | 0.41
2019-01-10 28 | 82.4 23 | 73.4 75 5 | 3.11 29.85 | 1011 5.7 | 0.22
2019-01-11 28 | 82.4 22 | 71.6 73 6 | 3.73 29.83 | 1010 17.7 | 0.7
2019-01-12 28 | 82.4 23 | 73.4 75 8 | 4.97 29.83 | 1010 0.2 | 0.01
2019-01-13 28 | 82.4 23 | 73.4 76 8 | 4.97 29.88 | 1012 5.2 | 0.2
2019-01-14 29 | 84.2 24 | 75.2 75 10 | 6.21 29.88 | 1012 4.4 | 0.17
2019-01-15 29 | 84.2 23 | 73.4 72 8 | 4.97 29.88 | 1012 7.8 | 0.31
2019-01-16 29 | 84.2 24 | 75.2 74 8 | 4.97 29.85 | 1011 0.4 | 0.02
2019-01-17 30 | 86.0 25 | 77.0 74 11 | 6.84 29.85 | 1011 23.0 | 0.91
2019-01-18 29 | 84.2 24 | 75.2 74 12 | 7.46 29.88 | 1012 4.3 | 0.17
2019-01-19 28 | 82.4 23 | 73.4 73 7 | 4.35 29.91 | 1013 0.8 | 0.03
2019-01-20 28 | 82.4 23 | 73.4 73 9 | 5.59 29.91 | 1013 0.0 | 0.0
2019-01-21 28 | 82.4 24 | 75.2 76 9 | 5.59 29.88 | 1012 3.6 | 0.14
2019-01-22 28 | 82.4 23 | 73.4 77 12 | 7.46 29.88 | 1012 7.5 | 0.3
2019-01-23 28 | 82.4 24 | 75.2 78 17 | 10.56 29.88 | 1012 23.4 | 0.92
2019-01-24 29 | 84.2 24 | 75.2 75 11 | 6.84 29.85 | 1011 2.0 | 0.08
2019-01-25 28 | 82.4 23 | 73.4 73 12 | 7.46 29.85 | 1011 12.3 | 0.48
2019-01-26 28 | 82.4 23 | 73.4 73 10 | 6.21 29.88 | 1012 3.7 | 0.15
2019-01-27 29 | 84.2 24 | 75.2 73 12 | 7.46 29.88 | 1012 14.1 | 0.56
2019-01-28 31 | 87.8 25 | 77.0 72 10 | 6.21 29.85 | 1011 3.2 | 0.13
2019-01-29 29 | 84.2 23 | 73.4 70 5 | 3.11 29.85 | 1011 11.3 | 0.44
2019-01-30 29 | 84.2 23 | 73.4 73 9 | 5.59 29.83 | 1010 6.4 | 0.25
2019-01-31 28 | 82.4 23 | 73.4 74 6 | 3.73 29.85 | 1011 7.6 | 0.3

São Tomé 10 Year Historical Weather Data

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