Saint John, Dominica Climate

Weather: 30.51°C/86.92°F, Wind SW at 3.09 km/h, 66% Humidity, 0.3% Chance of rain

Dominica
(Photo by JJ Shev on Unsplash)
Contents

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.

Country Dominica
Longitude -61.4318742
Latitude 15.5763757
Attitude/Elevation 153.65m (504.1ft)
Local time Tuesday 17:06
Annual high temperature 27.83ºC (82.09ºF)
Annual low temperature 26.38ºC (79.48ºF)
Average annual precip. 57.1mm (2.25in)
Warmest month September (29.07ºC / 84.33ºF)
Coldest Month February (24.64ºC / 76.35ºF)
Wettest Month September (85.77mm / 3.38in)
Driest Month February (25.67mm / 1.01in)
Number of days with rainfall (≥ 1.0 mm) 147.29 days (40.35%)
Days with no rain 217.71 days (59.65%)
Humidity 75.7%

Climate Saint John: 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) 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) 8.55 8.27 7.55 12.64 13.18 9.64 13.91 15.82 14.64 16.73 15.0 11.36 12.27
Average relative humidity (%) 74.53 74.32 74.65 75.58 76.54 76.51 76.82 76.78 75.55 75.69 76.27 75.11 75.7
Mean monthly sunshine hours 8.84 10.85 10.67 12.04 12.14 12.01 12.06 12.04 11.79 10.2 7.96 8.01 10.72

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
Temperature Max Average Min
Max Temperature 29.0°C (84.2°F) 28.58°C (83.44°F) 27.0°C (80.6°F)
Avg Temperature 28.0°C (82.4°F) 27.81°C (82.06°F) 27.0°C (80.6°F)
Min Temperature 27.0°C (80.6°F) 25.32°C (77.58°F) 22.0°C (71.6°F)
Dew Point Max Average Min
Dew Point 24.0°C (75.2°F) 23.0°C (73.4°F) 22.0°C (71.6°F)
Precipitation Max Average Min Sum
Precipitation 49.0mm | 1.93in 5.35mm | 0.21in 0.7mm | 0.03in 166.0mm | 6.54in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 27.0kmh | 16.78mph 15.94kmh | 9.9mph 9.0kmh | 5.59mph
Gust Wind 49.0kmh | 30.45mph 22.52kmh | 13.99mph 13.0kmh | 8.08mph
Sea Level Pressure Max Average Min
Sea Level Pressure 49.0mb 5.35mb 0.7mb
Saint John

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
August ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2019-08-01 27 | 80.6 23 | 73.4 80 18 | 11.18 29.94 | 1014 1.5 | 0.06
2019-08-02 28 | 82.4 23 | 73.4 80 16 | 9.94 29.94 | 1014 4.5 | 0.18
2019-08-03 28 | 82.4 23 | 73.4 79 24 | 14.91 29.97 | 1015 2.8 | 0.11
2019-08-04 27 | 80.6 23 | 73.4 79 22 | 13.67 29.97 | 1015 2.9 | 0.11
2019-08-05 27 | 80.6 23 | 73.4 81 19 | 11.81 29.97 | 1015 22.6 | 0.89
2019-08-06 28 | 82.4 23 | 73.4 78 13 | 8.08 29.97 | 1015 4.6 | 0.18
2019-08-07 28 | 82.4 23 | 73.4 76 11 | 6.84 30.0 | 1016 1.8 | 0.07
2019-08-08 28 | 82.4 23 | 73.4 80 13 | 8.08 30.0 | 1016 7.3 | 0.29
2019-08-09 28 | 82.4 23 | 73.4 80 14 | 8.7 30.03 | 1017 1.6 | 0.06
2019-08-10 28 | 82.4 22 | 71.6 76 17 | 10.56 30.0 | 1016 1.5 | 0.06
2019-08-11 28 | 82.4 23 | 73.4 78 14 | 8.7 30.0 | 1016 4.6 | 0.18
2019-08-12 28 | 82.4 24 | 75.2 79 16 | 9.94 29.94 | 1014 0.7 | 0.03
2019-08-13 28 | 82.4 23 | 73.4 77 19 | 11.81 29.97 | 1015 0.8 | 0.03
2019-08-14 28 | 82.4 23 | 73.4 78 17 | 10.56 30.0 | 1016 3.1 | 0.12
2019-08-15 28 | 82.4 24 | 75.2 79 22 | 13.67 30.0 | 1016 2.9 | 0.11
2019-08-16 28 | 82.4 23 | 73.4 79 18 | 11.18 30.0 | 1016 3.5 | 0.14
2019-08-17 28 | 82.4 23 | 73.4 77 17 | 10.56 29.97 | 1015 3.2 | 0.13
2019-08-18 28 | 82.4 23 | 73.4 78 14 | 8.7 29.97 | 1015 8.1 | 0.32
2019-08-19 28 | 82.4 23 | 73.4 79 14 | 8.7 29.97 | 1015 3.3 | 0.13
2019-08-20 28 | 82.4 23 | 73.4 78 11 | 6.84 29.97 | 1015 1.0 | 0.04
2019-08-21 27 | 80.6 22 | 71.6 75 9 | 5.59 29.97 | 1015 1.9 | 0.07
2019-08-22 28 | 82.4 23 | 73.4 76 15 | 9.32 29.97 | 1015 3.0 | 0.12
2019-08-23 28 | 82.4 23 | 73.4 77 13 | 8.08 30.0 | 1016 2.2 | 0.09
2019-08-24 28 | 82.4 23 | 73.4 78 14 | 8.7 30.0 | 1016 10.9 | 0.43
2019-08-25 28 | 82.4 23 | 73.4 78 16 | 9.94 29.97 | 1015 1.7 | 0.07
2019-08-26 28 | 82.4 23 | 73.4 78 20 | 12.43 29.94 | 1014 2.9 | 0.11
2019-08-27 27 | 80.6 23 | 73.4 81 27 | 16.78 29.88 | 1012 49.0 | 1.93
2019-08-28 28 | 82.4 23 | 73.4 80 19 | 11.81 29.91 | 1013 7.9 | 0.31
2019-08-29 28 | 82.4 23 | 73.4 78 12 | 7.46 29.94 | 1014 1.6 | 0.06
2019-08-30 28 | 82.4 23 | 73.4 78 10 | 6.21 29.94 | 1014 1.8 | 0.07
2019-08-31 27 | 80.6 23 | 73.4 78 10 | 6.21 29.91 | 1013 0.8 | 0.03

Saint John 10 Year Historical Weather Data

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