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Niamey vs Sao Tome Climate & Distance Between

Sao Tome And Principe flag
  • The distance between Niamey, Niger and Sao Tome, Sao Tome And Principe is approximately 1,540 km or 957 mi.
  • To reach Niamey in this distance one would set out from Sao Tome bearing 341.2° or NNW and follow the great circles arc to approach Niamey bearing 340.7° or NNW .
  • Niamey has a subtropical hot steppe climate (BSh) whereas Sao Tome has a tropical wet and dry/ savanna climate with dry summers (As).
  • The mean annual temperature is 3.8 °C (6.8°F) warmer.
  • Average monthly temperatures vary by 5.7 °C (10.3°F) more in Niamey. The continentality subtype is barely hyperoceanic as opposed to truly hyperoceanic.
  • Total annual precipitation averages 331.2 mm (13 in) less which is equivalent to 331.2 l/m² (8.13 US gal/ft²) or 3,312,000 l/ha (354,075 US gal/ac) less. About 5/8 as much.
  • There are 1411 more hours of sunlight per year in Niamey. In whichever way circa 3h 51' more per day or about 1 5/6 as many.
  • The altitude of the sun at midday is overall 2.3° lower in Niamey than in Sao Tome.
  • Relative humidity levels are 43.8% lower.
  • The mean dew point temperature is 12.5°C (22.5°F) lower.

Climate Comparison Table

The table shows values for Niamey relative to Sao Tome. You can also view this comparison the other way around from the perspective of Sao Tome vs Niamey.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) 3 (+5) +6 (+10) +8 (+15) +11 (+20) +11 (+20) +9 (+17) +6 (+11) +5 (+9) +5 (+10) +9 (+16) +7 (+13) 4 (+8) +7 (+13)
average temperature iconAverage Temperature °C ( °F) -4 (-7) +1 (+2) +5 (+9) +8 (+14) +8 (+14) +7 (+12) +5 (+9) +4 (+7) +4 (+7) +6 (+10) +3 (+5) -1 (-2) +4 (+7)
minimum temperature iconAverage Min Temperature °C ( °F) -7 (-12) -4 (-7) 0 (0) +4 (+6) +5 (+8) +4 (+7) +3 (+6) +2 (+4) +3 (+5) +2 (+4) -3 (-5) -5 (-10) +0 (+0)
rainfall iconAverage Precipitation mm (in) -82 (-3) -84 (-3) -128 (-5) -114 (-5) -78 (-3) +53 (+2) +154 (+6) +170 (+7) +74 (+3) -98 (-4) -99 (-4) -98 (-4) -331 (-13)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -8 ( -26) -8 ( -28) -11.5 ( -37) -10 ( -33) -6 ( -19) +3 (+10) +7 (+23) +10 (+32) +1 (+3) -10 ( -32) -11 ( -37) -8 ( -26)   -51.5 ( -14)
sunshine iconAverage Sunlight Hours/ Day +4h 29' +4h 12' +4h 21' +3h 58' +3h 15' +2h 28' +2h 27' +2h 03' +4h 14' +5h 36' +4h 56' +4h 21'   +3h 51'
daylight iconAverage Daylight Hours & Minutes/ Day -0h 40' -0h 25' -0h 04' +0h 17' +0h 36' +0h 45' +0h 41' +0h 25' +0h 04' -0h 18' -0h 36' -0h 45'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -13 -12.8 -11.5 +9.9 +13 +13 +13 +10.1 -11.3 -12.7 -13 -13.1   -2.3
relative humidity iconRelative Humidity (%) -66 -66 -65 -59 -44 -30 -14 -2 -14 -39 -62 -65   -43.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -29.9 (-54) -25.9 (-47) -24 (-43) -15.5 (-28) -5.7 (-10) -2.2 (-4) +1.1 (+2) +3.2 (+6) +0.5 (+1) -5.5 (-10) -20.5 (-37) -25.9 (-47) -12.5 (-23)

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Niamey vs Sao Tome Discussion

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