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Port Harcourt, Nigeria climate
Am Tropical monsoon
Port Harcourt has a remarkably steady tropical climate (Tropical monsoon, Köppen Am). The hottest month is March with an average daily high near 31°C, while the coldest is August averaging around 22°C at night. Precipitation totals about 2796 mm a year and is strongly seasonal — June alone averages 356 mm while January barely receives 55 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Port Harcourt climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 31 | 30 | 30 | 29 | 28 | 28 | 28 | 29 | 30 | 30 |
| Avg temp (°C) | 26 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 26 |
| Avg low (°C) | 21 | 23 | 24 | 24 | 24 | 23 | 22 | 22 | 23 | 23 | 23 | 21 |
| Precipitation (mm) | 55 | 88 | 188 | 246 | 299 | 356 | 342 | 285 | 345 | 338 | 193 | 61 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 31 | 31 | 30 | 30 | 29 |
| Avg temp (°C) | 26 | 27 | 27 | 27 | 27 | 26 |
| Avg low (°C) | 21 | 23 | 24 | 24 | 24 | 23 |
| Precipitation (mm) | 55 | 88 | 188 | 246 | 299 | 356 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 29 | 30 | 30 |
| Avg temp (°C) | 25 | 25 | 25 | 26 | 26 | 26 |
| Avg low (°C) | 22 | 22 | 23 | 23 | 23 | 21 |
| Precipitation (mm) | 342 | 285 | 345 | 338 | 193 | 61 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 2 | 6 | 3 | 2 | 0.4 | — | — | — | — | — | 0.4 | 0.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 2 | 6 | 3 | 2 | 0.4 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | — | — | 0.4 | 0.7 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 63 | 80 | 80 | 81 | 86 | 89 | 89 | 89 | 82 | 70 | 52 |
| Relative humidity (%) | 78 | 82 | 87 | 89 | 90 | 91 | 91 | 91 | 91 | 91 | 88 | 81 |
| Wind speed (km/h) | 3.4 | 3.4 | 3.3 | 3.2 | 3.0 | 3.5 | 4.0 | 4.2 | 3.7 | 3.0 | 2.5 | 2.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 63 | 80 | 80 | 81 | 86 |
| Relative humidity (%) | 78 | 82 | 87 | 89 | 90 | 91 |
| Wind speed (km/h) | 3.4 | 3.4 | 3.3 | 3.2 | 3.0 | 3.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 89 | 89 | 89 | 82 | 70 | 52 |
| Relative humidity (%) | 91 | 91 | 91 | 91 | 88 | 81 |
| Wind speed (km/h) | 4.0 | 4.2 | 3.7 | 3.0 | 2.5 | 2.8 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.