Southern Province, Sierra Leone · population 174,354 · 11 weather stations within 200 km · records 1849 to 2025
Bo has an average annual daytime high of 31.3°C, based on the 1951 to 1980 baseline. Its warmest month is March, when highs typically reach 34.6°C, and its coldest is January, with overnight lows near 20.3°C.
These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.
Since 1900, Bo's average temperature has risen by +1.5°C. Compared to the earliest station records that begin in 1849, warming totals +1.6°C.
20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.
Daytime highs sit within a comfortable 15°C to 26°C range.
Bo's average annual daytime high is 31.3°C, based on the 1951 to 1980 baseline period. The warmest month is March, with highs averaging 34.6°C, and the coldest is January, with lows averaging 20.3°C.
March is the warmest month in Bo, with typical daytime highs of 34.6°C.
2023 is the hottest year on record for Bo, running +1.4°C above the 1951 to 1980 baseline.
Yes. Since 1900, Bo has warmed by roughly +1.5°C.
any time of year typically offers the most comfortable daytime highs, in the 15°C to 26°C range.
Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.