Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Weather Guide
Sierra Leone Average Monthly Weather
Weather score64Good annual avg
Best months: January, February, December
Across the year, average daytime temperatures are around 30°C, sunshine averages 5.6h per day, and rainfall totals about 2809mm. Sea temperatures average 21°C across the year.
Annual weather
Annual averages
Temp
30°C
Rain
2809mm
Annual total
Sun
5.6h
Sea
21°C
Weather score
64
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 616mm, so showers are a real planning factor.
Limited sun
Sunshine averages 2.8h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Weather map
Compare Sierra Leone with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August27°C average high
August is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJanuary to May
This stretch sets the upper range for average daytime heat.
Rain
August616mm average rain
August is one of Sierra Leone's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to May and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August2.8 hours average sun
August is one of Sierra Leone's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August20°C average sea
August is close to Sierra Leone's usual sea temperature, with limited seasonal change in the water.
Warmest seaJanuary to July and September to December
Sea temperatures are usually near 21°C in this stretch, so swimming comfort is at its strongest.
Weather score
August45 weather score
August is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.