Saint John, Dominica Climate

Weather: 25.51°C/77.92°F, Wind SW at 1.03 km/h, 94% Humidity, 0% Chance of rain

Dominica
(Photo by JJ Shev on Unsplash)

Saint John Climate Summary

Located at an elevation of 153.65 meters (504.1 feet) above sea level, Saint John has a Tropical rainforest climate (Classification: Af). The city’s yearly temperature is 27.34ºC (81.21ºF) and it is 0.03% higher than Dominica’s averages. Saint John typically receives about 57.1 millimeters (2.25 inches) of precipitation and has 147.29 rainy days (40.35% of the time) annually.

CountryDominica
Longitude-61.4318742
Latitude15.5763757
Attitude/Elevation153.65m (504.1ft)
Local timeSunday 07:21
Annual high temperature27.83ºC (82.09ºF)
Annual low temperature26.38ºC (79.48ºF)
Average annual precip.57.1mm (2.25in)
Warmest monthSeptember (29.07ºC / 84.33ºF)
Coldest MonthFebruary (24.64ºC / 76.35ºF)
Wettest MonthSeptember (85.77mm / 3.38in)
Driest MonthFebruary (25.67mm / 1.01in)
Number of days with rainfall (≥ 1.0 mm)147.29 days (40.35%)
Days with no rain217.71 days (59.65%)
Humidity75.7%

Climate Saint John: Monthly Averages

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)28.0(82.4)28.0(82.4)29.0(84.2)30.0(86.0)30.0(86.0)30.0(86.0)30.0(86.0)31.0(87.8)31.0(87.8)31.0(87.8)30.0(86.0)30.0(86.0)31.0(87.8)
Average high °C (°F)26.38(79.48)26.25(79.25)26.7(80.06)27.28(81.1)28.03(82.45)28.46(83.23)28.55(83.39)28.91(84.04)29.07(84.33)28.87(83.97)28.15(82.67)27.34(81.21)27.83(82.09)
Daily mean °C (°F)25.87(78.57)25.68(78.22)26.15(79.07)26.79(80.22)27.55(81.59)28.07(82.53)28.09(82.56)28.39(83.1)28.58(83.44)28.41(83.14)27.72(81.9)26.84(80.31)27.34(81.21)
Average low °C (°F)24.91(76.84)24.64(76.35)25.26(77.47)25.86(78.55)26.58(79.84)27.04(80.67)27.16(80.89)27.43(81.37)27.69(81.84)27.35(81.23)26.67(80.01)25.93(78.67)26.38(79.48)
Record low °C (°F)17.0(62.6)17.0(62.6)18.0(64.4)19.0(66.2)21.0(69.8)21.0(69.8)21.0(69.8)22.0(71.6)20.0(68.0)20.0(68.0)19.0(66.2)19.0(66.2)17.0(62.6)
Average precipitation mm (inches)34.72(1.37)25.67(1.01)27.12(1.07)48.1(1.89)62.41(2.46)40.26(1.59)68.24(2.69)85.26(3.36)85.77(3.38)84.25(3.32)76.42(3.01)46.96(1.85)57.1(2.25)
Average precipitation days (≥ 1.0 mm)8.558.277.5512.6413.189.6413.9115.8214.6416.7315.011.3612.27
Average relative humidity (%)74.5374.3274.6575.5876.5476.5176.8276.7875.5575.6976.2775.1175.7
Mean monthly sunshine hours8.8410.8510.6712.0412.1412.0112.0612.0411.7910.27.968.0110.72

Climate Graph

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

Saint John

Saint John Temperature by Month

September
28.58°C | 83.44°F
October
28.41°C | 83.14°F
August
28.39°C | 83.1°F
July
28.09°C | 82.56°F
June
28.07°C | 82.53°F
November
27.72°C | 81.9°F
May
27.55°C | 81.59°F
December
26.84°C | 80.31°F
April
26.79°C | 80.22°F
March
26.15°C | 79.07°F
January
25.87°C | 78.57°F
February
25.68°C | 78.22°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
TemperatureMaxAverageMin
Max Temperature29.0°C (84.2°F)28.58°C (83.44°F)27.0°C (80.6°F)
Avg Temperature28.0°C (82.4°F)27.81°C (82.06°F)27.0°C (80.6°F)
Min Temperature27.0°C (80.6°F)25.32°C (77.58°F)22.0°C (71.6°F)
Dew PointMaxAverageMin
Dew Point24.0°C (75.2°F)23.0°C (73.4°F)22.0°C (71.6°F)
PrecipitationMaxAverageMinSum
Precipitation49.0mm | 1.93in5.35mm | 0.21in0.7mm | 0.03in166.0mm | 6.54in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind27.0kmh | 16.78mph15.94kmh | 9.9mph9.0kmh | 5.59mph
Gust Wind49.0kmh | 30.45mph22.52kmh | 13.99mph13.0kmh | 8.08mph
Sea Level PressureMaxAverageMin
Sea Level Pressure49.0mb5.35mb0.7mb
Saint John

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-08-0127 | 80.623 | 73.48018 | 11.1829.94 | 10141.5 | 0.06
2019-08-0228 | 82.423 | 73.48016 | 9.9429.94 | 10144.5 | 0.18
2019-08-0328 | 82.423 | 73.47924 | 14.9129.97 | 10152.8 | 0.11
2019-08-0427 | 80.623 | 73.47922 | 13.6729.97 | 10152.9 | 0.11
2019-08-0527 | 80.623 | 73.48119 | 11.8129.97 | 101522.6 | 0.89
2019-08-0628 | 82.423 | 73.47813 | 8.0829.97 | 10154.6 | 0.18
2019-08-0728 | 82.423 | 73.47611 | 6.8430.0 | 10161.8 | 0.07
2019-08-0828 | 82.423 | 73.48013 | 8.0830.0 | 10167.3 | 0.29
2019-08-0928 | 82.423 | 73.48014 | 8.730.03 | 10171.6 | 0.06
2019-08-1028 | 82.422 | 71.67617 | 10.5630.0 | 10161.5 | 0.06
2019-08-1128 | 82.423 | 73.47814 | 8.730.0 | 10164.6 | 0.18
2019-08-1228 | 82.424 | 75.27916 | 9.9429.94 | 10140.7 | 0.03
2019-08-1328 | 82.423 | 73.47719 | 11.8129.97 | 10150.8 | 0.03
2019-08-1428 | 82.423 | 73.47817 | 10.5630.0 | 10163.1 | 0.12
2019-08-1528 | 82.424 | 75.27922 | 13.6730.0 | 10162.9 | 0.11
2019-08-1628 | 82.423 | 73.47918 | 11.1830.0 | 10163.5 | 0.14
2019-08-1728 | 82.423 | 73.47717 | 10.5629.97 | 10153.2 | 0.13
2019-08-1828 | 82.423 | 73.47814 | 8.729.97 | 10158.1 | 0.32
2019-08-1928 | 82.423 | 73.47914 | 8.729.97 | 10153.3 | 0.13
2019-08-2028 | 82.423 | 73.47811 | 6.8429.97 | 10151.0 | 0.04
2019-08-2127 | 80.622 | 71.6759 | 5.5929.97 | 10151.9 | 0.07
2019-08-2228 | 82.423 | 73.47615 | 9.3229.97 | 10153.0 | 0.12
2019-08-2328 | 82.423 | 73.47713 | 8.0830.0 | 10162.2 | 0.09
2019-08-2428 | 82.423 | 73.47814 | 8.730.0 | 101610.9 | 0.43
2019-08-2528 | 82.423 | 73.47816 | 9.9429.97 | 10151.7 | 0.07
2019-08-2628 | 82.423 | 73.47820 | 12.4329.94 | 10142.9 | 0.11
2019-08-2727 | 80.623 | 73.48127 | 16.7829.88 | 101249.0 | 1.93
2019-08-2828 | 82.423 | 73.48019 | 11.8129.91 | 10137.9 | 0.31
2019-08-2928 | 82.423 | 73.47812 | 7.4629.94 | 10141.6 | 0.06
2019-08-3028 | 82.423 | 73.47810 | 6.2129.94 | 10141.8 | 0.07
2019-08-3127 | 80.623 | 73.47810 | 6.2129.91 | 10130.8 | 0.03

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