Derriere Morne, Vieux Fort, Saint Lucia Climate

Weather: 28.94°C/84.09°F, Wind SW at 11.83 km/h, 79% Humidity, 0.35% Chance of rain

Derriere Morne Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Derriere Morne has a Tropical rainforest climate climate (Classification: Af). The district’s yearly temperature is 28.35ºC (83.03ºF) and it is 0.58% higher than Saint Lucia’s averages. Derriere Morne typically receives about 107.47 millimeters (4.23 inches) of precipitation and has 225.01 rainy days (61.65% of the time) annually.

Country Saint Lucia
City Vieux Fort
Longitude -60.9496433
Latitude 13.720608
Attitude/Elevation Nonem (0ft)
Local time Wednesday 05:58
Annual high temperature 28.98ºC (84.16ºF)
Annual low temperature 27.25ºC (81.05ºF)
Average annual precip. 107.47mm (4.23in)
Warmest month September (30.33ºC / 86.59ºF)
Coldest Month February (26.01ºC / 78.82ºF)
Wettest Month October (196.98mm / 7.76in)
Driest Month February (41.01mm / 1.61in)
Number of days with rainfall (≥ 1.0 mm) 225.01 days (61.65%)
Days with no rain 139.99 days (38.35%)
Humidity 77.19%

Climate Derriere Morne: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 28.71(83.68) 28.71(83.68) 28.71(83.68) 29.73(85.51) 30.76(87.37) 30.76(87.37) 30.76(87.37) 31.78(89.2) 32.81(91.06) 31.78(89.2) 30.76(87.37) 29.73(85.51) 32.81(91.06)
Average high °C (°F) 27.81(82.06) 27.61(81.7) 27.81(82.06) 28.35(83.03) 29.12(84.42) 29.36(84.85) 29.43(84.97) 29.94(85.89) 30.33(86.59) 30.09(86.16) 29.34(84.81) 28.5(83.3) 28.97(84.15)
Daily mean °C (°F) 27.2(80.96) 27.04(80.67) 27.17(80.91) 27.79(82.02) 28.52(83.34) 28.73(83.71) 28.86(83.95) 29.29(84.72) 29.67(85.41) 29.39(84.9) 28.73(83.71) 27.84(82.11) 28.35(83.03)
Average low °C (°F) 26.24(79.23) 26.01(78.82) 26.1(78.98) 26.65(79.97) 27.42(81.36) 27.82(82.08) 27.85(82.13) 28.03(82.45) 28.38(83.08) 28.13(82.63) 27.61(81.7) 26.74(80.13) 27.25(81.05)
Record low °C (°F) 20.51(68.92) 19.48(67.06) 19.48(67.06) 22.56(72.61) 22.56(72.61) 23.58(74.44) 24.61(76.3) 20.51(68.92) 23.58(74.44) 20.51(68.92) 21.53(70.75) 21.53(70.75) 19.48(67.06)
Average precipitation mm (inches) 52.39(2.06) 41.01(1.61) 47.39(1.87) 66.14(2.6) 78.63(3.1) 113.39(4.46) 151.92(5.98) 156.8(6.17) 171.72(6.76) 196.98(7.76) 131.61(5.18) 81.56(3.21) 107.46(4.23)
Average precipitation days (≥ 1.0 mm) 16.4 13.79 14.82 14.92 18.18 21.07 23.77 22.74 20.51 20.88 20.04 17.89 18.75
Average relative humidity (%) 75.9 75.5 76.53 77.36 77.87 78.15 78.37 77.93 76.27 77.17 78.09 77.11 77.18
Mean monthly sunshine hours 9.47 11.36 11.38 12.71 12.74 12.72 12.74 12.67 12.18 11.19 9.05 8.58 11.4

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Derriere Morne in recent years.

Derriere Morne

Derriere Morne Temperature by Month

September
29.67°C | 85.41°F
October
29.39°C | 84.9°F
August
29.29°C | 84.72°F
July
28.86°C | 83.95°F
June
28.73°C | 83.71°F
November
28.73°C | 83.71°F
May
28.52°C | 83.34°F
December
27.84°C | 82.11°F
April
27.79°C | 82.02°F
January
27.2°C | 80.96°F
March
27.17°C | 80.91°F
February
27.04°C | 80.67°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 32.81°C (91.06°F) 30.79°C (87.42°F) 29.73°C (85.51°F)
Avg Temperature 30.76°C (87.37°F) 29.83°C (85.69°F) 28.71°C (83.68°F)
Min Temperature 29.73°C (85.51°F) 28.37°C (83.07°F) 27.68°C (81.82°F)
Dew Point Max Average Min
Dew Point 24.61°C (76.3°F) 23.89°C (75.0°F) 22.56°C (72.61°F)
Precipitation Max Average Min Sum
Precipitation 31.17mm | 1.23in 7.88mm | 0.31in 0.0mm | 0in 236.36mm | 9.31in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 24.61kmh | 15.29mph 13.57kmh | 8.43mph 6.15kmh | 3.82mph
Gust Wind 34.86kmh | 21.66mph 19.21kmh | 11.94mph 9.23kmh | 5.74mph
Sea Level Pressure Max Average Min
Sea Level Pressure 31.17mb 7.88mb 0.0mb
Derriere Morne

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
September ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2010-09-01 29.73 | 85.51 24.61 | 76.3 74 12.3 | 7.64 30.64 | 1037.6 10.56 | 0.42
2010-09-02 30.76 | 87.37 24.61 | 76.3 75 20.51 | 12.74 30.7 | 1039.65 0.72 | 0.03
2010-09-03 30.76 | 87.37 24.61 | 76.3 73 18.46 | 11.47 30.7 | 1039.65 0.21 | 0.01
2010-09-04 29.73 | 85.51 23.58 | 74.44 71 10.25 | 6.37 30.67 | 1038.63 5.64 | 0.22
2010-09-05 29.73 | 85.51 23.58 | 74.44 70 8.2 | 5.1 30.64 | 1037.6 3.38 | 0.13
2010-09-06 30.76 | 87.37 23.58 | 74.44 72 9.23 | 5.74 30.67 | 1038.63 0.21 | 0.01
2010-09-07 29.73 | 85.51 24.61 | 76.3 75 10.25 | 6.37 30.64 | 1037.6 14.35 | 0.56
2010-09-08 29.73 | 85.51 23.58 | 74.44 73 15.38 | 9.56 30.61 | 1036.58 2.26 | 0.09
2010-09-09 28.71 | 83.68 23.58 | 74.44 75 12.3 | 7.64 30.58 | 1035.55 26.56 | 1.05
2010-09-10 29.73 | 85.51 23.58 | 74.44 75 9.23 | 5.74 30.58 | 1035.55 6.36 | 0.25
2010-09-11 29.73 | 85.51 23.58 | 74.44 74 11.28 | 7.01 30.58 | 1035.55 12.92 | 0.51
2010-09-12 29.73 | 85.51 24.61 | 76.3 75 13.33 | 8.28 30.58 | 1035.55 5.95 | 0.23
2010-09-13 29.73 | 85.51 24.61 | 76.3 77 12.3 | 7.64 30.58 | 1035.55 5.13 | 0.2
2010-09-14 29.73 | 85.51 22.56 | 72.61 71 7.18 | 4.46 30.61 | 1036.58 0.0 | 0
2010-09-15 29.73 | 85.51 23.58 | 74.44 72 9.23 | 5.74 30.58 | 1035.55 0.0 | 0
2010-09-16 29.73 | 85.51 24.61 | 76.3 74 14.35 | 8.92 30.52 | 1033.5 0.1 | 0.0
2010-09-17 29.73 | 85.51 23.58 | 74.44 72 14.35 | 8.92 30.52 | 1033.5 0.0 | 0
2010-09-18 29.73 | 85.51 23.58 | 74.44 71 14.35 | 8.92 30.61 | 1036.58 21.94 | 0.86
2010-09-19 29.73 | 85.51 23.58 | 74.44 73 13.33 | 8.28 30.64 | 1037.6 13.33 | 0.52
2010-09-20 29.73 | 85.51 23.58 | 74.44 74 15.38 | 9.56 30.58 | 1035.55 4.92 | 0.19
2010-09-21 28.71 | 83.68 23.58 | 74.44 73 19.48 | 12.1 30.61 | 1036.58 19.07 | 0.75
2010-09-22 29.73 | 85.51 24.61 | 76.3 75 24.61 | 15.29 30.61 | 1036.58 6.36 | 0.25
2010-09-23 29.73 | 85.51 23.58 | 74.44 73 20.51 | 12.74 30.61 | 1036.58 5.23 | 0.21
2010-09-24 29.73 | 85.51 23.58 | 74.44 73 17.43 | 10.83 30.58 | 1035.55 6.77 | 0.27
2010-09-25 30.76 | 87.37 23.58 | 74.44 70 7.18 | 4.46 30.58 | 1035.55 5.54 | 0.22
2010-09-26 30.76 | 87.37 23.58 | 74.44 70 6.15 | 3.82 30.58 | 1035.55 12.2 | 0.48
2010-09-27 29.73 | 85.51 23.58 | 74.44 74 10.25 | 6.37 30.58 | 1035.55 31.17 | 1.23
2010-09-28 29.73 | 85.51 23.58 | 74.44 74 16.4 | 10.19 30.55 | 1034.53 3.18 | 0.13
2010-09-29 29.73 | 85.51 24.61 | 76.3 75 18.46 | 11.47 30.58 | 1035.55 3.69 | 0.15
2010-09-30 29.73 | 85.51 24.61 | 76.3 76 15.38 | 9.56 30.58 | 1035.55 8.61 | 0.34

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