Grafton, Western Area, Sierra Leone Climate

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

Sierra Leone
(Photo by Bruce Warrington on Unsplash)

Grafton Climate Summary

Located at an elevation of 106.68 meters (350.0 feet) above sea level, Grafton has a Tropical monsoon climate (Classification: Am). The district’s yearly temperature is 27.48ºC (81.46ºF) and it is -0.13% lower than Sierra Leone’s averages. Grafton typically receives about 255.08 millimeters (10.04 inches) of precipitation and has 197.67 rainy days (54.16% of the time) annually.

Country Sierra Leone
City Western Area
Longitude -13.2317225
Latitude 8.4656765
Attitude/Elevation 106.68m (350.0ft)
Local time Thursday 06:12
Annual high temperature 29.86ºC (85.75ºF)
Annual low temperature 24.51ºC (76.12ºF)
Average annual precip. 255.08mm (10.04in)
Warmest month January (31.64ºC / 88.95ºF)
Coldest Month August (23.69ºC / 74.64ºF)
Wettest Month August (803.11mm / 31.62in)
Driest Month February (3.51mm / 0.14in)
Number of days with rainfall (≥ 1.0 mm) 197.67 days (54.16%)
Days with no rain 167.33 days (45.84%)
Humidity 75.73%

Climate Grafton: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
Record high °C (°F) 37.21(98.98) 37.21(98.98) 37.21(98.98) 35.25(95.45) 35.25(95.45) 33.29(91.92) 31.33(88.39) 29.37(84.87) 32.31(90.16) 33.29(91.92) 34.27(93.69) 36.23(97.21) 37.21(98.98)
Average high °C (°F) 31.64(88.95) 31.34(88.41) 30.95(87.71) 30.72(87.3) 30.5(86.9) 29.13(84.43) 27.55(81.59) 27.09(80.76) 27.99(82.38) 29.57(85.23) 30.45(86.81) 31.47(88.65) 29.86(85.75)
Daily mean °C (°F) 28.12(82.62) 28.14(82.65) 28.18(82.72) 28.35(83.03) 28.42(83.16) 27.35(81.23) 26.01(78.82) 25.62(78.12) 26.19(79.14) 27.26(81.07) 27.97(82.35) 28.22(82.8) 27.48(81.46)
Average low °C (°F) 24.06(75.31) 24.0(75.2) 24.42(75.96) 25.12(77.22) 25.61(78.1) 25.06(77.11) 23.99(75.18) 23.69(74.64) 23.98(75.16) 24.59(76.26) 25.03(77.05) 24.49(76.08) 24.51(76.12)
Record low °C (°F) 20.56(69.01) 21.54(70.77) 21.54(70.77) 22.52(72.54) 17.62(63.72) 19.58(67.24) 15.67(60.21) 16.64(61.95) 17.62(63.72) 14.69(58.44) 23.5(74.3) 20.56(69.01) 14.69(58.44)
Average precipitation mm (inches) 5.65(0.22) 3.51(0.14) 11.84(0.47) 37.13(1.46) 143.54(5.65) 367.38(14.46) 715.19(28.16) 803.11(31.62) 518.86(20.43) 307.08(12.09) 126.61(4.98) 21.27(0.84) 255.09(10.04)
Average precipitation days (≥ 1.0 mm) 1.61 0.71 3.11 7.21 18.51 26.88 29.91 28.75 27.68 27.86 20.83 4.63 16.47
Average relative humidity (%) 67.03 68.58 71.17 72.07 75.77 79.44 81.86 83.46 83.18 80.95 77.7 67.54 75.73
Mean monthly sunshine hours 11.06 11.28 11.12 11.03 10.62 9.78 9.1 8.45 9.75 10.44 10.95 10.94 10.38

Climate Graph

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

Grafton Temperature by Month

May
28.42°C | 83.16°F
April
28.35°C | 83.03°F
December
28.22°C | 82.8°F
March
28.18°C | 82.72°F
February
28.14°C | 82.65°F
January
28.12°C | 82.62°F
November
27.97°C | 82.35°F
June
27.35°C | 81.23°F
October
27.26°C | 81.07°F
September
26.19°C | 79.14°F
July
26.01°C | 78.82°F
August
25.62°C | 78.12°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 32.31°C (90.16°F) 30.68°C (87.22°F) 29.37°C (84.87°F)
Avg Temperature 28.39°C (83.1°F) 28.0°C (82.4°F) 27.41°C (81.34°F)
Min Temperature 25.46°C (77.83°F) 25.1°C (77.18°F) 24.48°C (76.06°F)
Dew Point Max Average Min
Dew Point 23.5°C (74.3°F) 23.3°C (73.94°F) 22.52°C (72.54°F)
Precipitation Max Average Min Sum
Precipitation 13.51mm | 0.53in 4.68mm | 0.18in 0.2mm | 0.01in 140.44mm | 5.53in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 10.77kmh | 6.69mph 7.37kmh | 4.58mph 5.87kmh | 3.65mph
Gust Wind 15.67kmh | 9.74mph 10.74kmh | 6.67mph 7.83kmh | 4.87mph
Sea Level Pressure Max Average Min
Sea Level Pressure 13.51mb 4.68mb 0.2mb

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
November ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2017-11-01 28.39 | 83.1 23.5 | 74.3 80 6.85 | 4.26 29.26 | 990.85 13.51 | 0.53
2017-11-02 28.39 | 83.1 23.5 | 74.3 80 7.83 | 4.87 29.26 | 990.85 0.59 | 0.02
2017-11-03 28.39 | 83.1 23.5 | 74.3 81 9.79 | 6.08 29.23 | 989.87 0.69 | 0.03
2017-11-04 28.39 | 83.1 23.5 | 74.3 81 7.83 | 4.87 29.26 | 990.85 1.27 | 0.05
2017-11-05 27.41 | 81.34 22.52 | 72.54 78 6.85 | 4.26 29.26 | 990.85 3.13 | 0.12
2017-11-06 28.39 | 83.1 23.5 | 74.3 79 6.85 | 4.26 29.23 | 989.87 9.6 | 0.38
2017-11-07 27.41 | 81.34 23.5 | 74.3 79 5.87 | 3.65 29.2 | 988.89 9.79 | 0.39
2017-11-08 28.39 | 83.1 23.5 | 74.3 77 5.87 | 3.65 29.2 | 988.89 3.62 | 0.14
2017-11-09 28.39 | 83.1 23.5 | 74.3 78 6.85 | 4.26 29.23 | 989.87 11.46 | 0.45
2017-11-10 28.39 | 83.1 23.5 | 74.3 78 5.87 | 3.65 29.23 | 989.87 11.95 | 0.47
2017-11-11 28.39 | 83.1 23.5 | 74.3 78 5.87 | 3.65 29.2 | 988.89 1.96 | 0.08
2017-11-12 28.39 | 83.1 23.5 | 74.3 79 5.87 | 3.65 29.2 | 988.89 0.59 | 0.02
2017-11-13 28.39 | 83.1 23.5 | 74.3 78 8.81 | 5.47 29.2 | 988.89 5.48 | 0.22
2017-11-14 28.39 | 83.1 23.5 | 74.3 78 10.77 | 6.69 29.2 | 988.89 5.39 | 0.21
2017-11-15 27.41 | 81.34 22.52 | 72.54 79 8.81 | 5.47 29.2 | 988.89 1.37 | 0.05
2017-11-16 27.41 | 81.34 22.52 | 72.54 78 8.81 | 5.47 29.23 | 989.87 3.04 | 0.12
2017-11-17 27.41 | 81.34 23.5 | 74.3 81 8.81 | 5.47 29.23 | 989.87 6.27 | 0.25
2017-11-18 27.41 | 81.34 23.5 | 74.3 81 7.83 | 4.87 29.23 | 989.87 7.15 | 0.28
2017-11-19 27.41 | 81.34 23.5 | 74.3 80 6.85 | 4.26 29.2 | 988.89 3.33 | 0.13
2017-11-20 28.39 | 83.1 23.5 | 74.3 80 5.87 | 3.65 29.23 | 989.87 10.28 | 0.4
2017-11-21 28.39 | 83.1 22.52 | 72.54 78 5.87 | 3.65 29.23 | 989.87 3.72 | 0.15
2017-11-22 27.41 | 81.34 23.5 | 74.3 79 5.87 | 3.65 29.23 | 989.87 9.99 | 0.39
2017-11-23 28.39 | 83.1 23.5 | 74.3 80 6.85 | 4.26 29.23 | 989.87 2.55 | 0.1
2017-11-24 28.39 | 83.1 23.5 | 74.3 80 6.85 | 4.26 29.26 | 990.85 0.29 | 0.01
2017-11-25 27.41 | 81.34 23.5 | 74.3 80 8.81 | 5.47 29.26 | 990.85 0.2 | 0.01
2017-11-26 28.39 | 83.1 23.5 | 74.3 79 8.81 | 5.47 29.26 | 990.85 0.98 | 0.04
2017-11-27 27.41 | 81.34 23.5 | 74.3 80 8.81 | 5.47 29.32 | 992.81 1.47 | 0.06
2017-11-28 27.41 | 81.34 23.5 | 74.3 81 7.83 | 4.87 29.29 | 991.83 2.55 | 0.1
2017-11-29 27.41 | 81.34 22.52 | 72.54 79 6.85 | 4.26 29.26 | 990.85 6.46 | 0.25
2017-11-30 28.39 | 83.1 22.52 | 72.54 75 5.87 | 3.65 29.29 | 991.83 1.76 | 0.07

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