Tumbes, Peru climate
BSh Hot semi-arid
Tumbes has a remarkably steady tropical climate (Hot semi-arid, Köppen BSh). The hottest month is April with an average daily high near 33°C, while the coldest is August averaging around 20°C at night. Precipitation totals about 533 mm a year and is strongly seasonal — February alone averages 161 mm while August barely receives 0 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)Tumbes climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 33 | 33 | 33 | 32 | 31 | 31 | 31 | 31 | 32 | 32 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 26 | 26 | 26 | 27 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 22 | 21 | 20 | 20 | 21 | 21 | 23 |
| Precipitation (mm) | 80 | 161 | 149 | 76 | 28 | 2 | 1 | 0 | 2 | 2 | 5 | 29 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 33 | 33 | 33 | 32 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 28 | 27 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 22 |
| Precipitation (mm) | 80 | 161 | 149 | 76 | 28 | 2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 32 | 32 |
| Avg temp (°C) | 26 | 25 | 26 | 26 | 26 | 27 |
| Avg low (°C) | 21 | 20 | 20 | 21 | 21 | 23 |
| Precipitation (mm) | 1 | 0 | 2 | 2 | 5 | 29 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 81 | 77 | 68 | 65 | 62 | 64 | 64 | 67 | 70 | 69 | 69 |
| Relative humidity (%) | 76 | 78 | 79 | 77 | 74 | 73 | 72 | 72 | 72 | 71 | 72 | 74 |
| Wind speed (m/s) | 3.2 | 2.9 | 2.6 | 2.7 | 3.2 | 3.4 | 3.5 | 3.5 | 3.4 | 3.6 | 3.6 | 3.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 81 | 77 | 68 | 65 | 62 |
| Relative humidity (%) | 76 | 78 | 79 | 77 | 74 | 73 |
| Wind speed (m/s) | 3.2 | 2.9 | 2.6 | 2.7 | 3.2 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 64 | 67 | 70 | 69 | 69 |
| Relative humidity (%) | 72 | 72 | 72 | 71 | 72 | 74 |
| Wind speed (m/s) | 3.5 | 3.5 | 3.4 | 3.6 | 3.6 | 3.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from SENAMHI, Peru's national weather service, measured at Puerto Pizarro, about 8 km from the city centre.
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.