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Ixtapa-Zihuatanejo, Guerrero climate
Aw Tropical savanna (dry winter)
Ixtapa-Zihuatanejo has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is June with an average daily high near 91°F, while the coldest is February averaging around 66°F at night. Precipitation totals about 39 inches a year and is strongly seasonal — September alone averages 11.3 inches while April barely receives 0.01 inches.
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)Ixtapa-Zihuatanejo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 89 | 89 | 90 | 91 | 91 | 91 | 91 | 90 | 90 | 89 | 89 |
| Avg temp (°F) | 78 | 78 | 78 | 79 | 80 | 81 | 80 | 80 | 80 | 80 | 79 | 78 |
| Avg low (°F) | 67 | 66 | 67 | 68 | 69 | 70 | 70 | 70 | 69 | 69 | 69 | 67 |
| Precipitation (in) | 0.6 | 0.1 | 0.2 | 0.0 | 0.9 | 7.0 | 4.8 | 6.6 | 11.3 | 5.4 | 1.6 | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 89 | 89 | 90 | 91 | 91 |
| Avg temp (°F) | 78 | 78 | 78 | 79 | 80 | 81 |
| Avg low (°F) | 67 | 66 | 67 | 68 | 69 | 70 |
| Precipitation (in) | 0.6 | 0.1 | 0.2 | 0.0 | 0.9 | 7.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 91 | 90 | 90 | 89 | 89 |
| Avg temp (°F) | 80 | 80 | 80 | 80 | 79 | 78 |
| Avg low (°F) | 70 | 70 | 69 | 69 | 69 | 67 |
| Precipitation (in) | 4.8 | 6.6 | 11.3 | 5.4 | 1.6 | 0.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 27 | 24 | 28 | 42 | 68 | 70 | 73 | 76 | 58 | 37 | 34 |
| Relative humidity (%) | 67 | 64 | 61 | 59 | 64 | 77 | 78 | 80 | 83 | 82 | 75 | 71 |
| Wind speed (mph) | 4.3 | 4.7 | 4.8 | 4.8 | 5.1 | 5.7 | 5.1 | 5.3 | 5.7 | 4.7 | 4.1 | 4.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 27 | 24 | 28 | 42 | 68 |
| Relative humidity (%) | 67 | 64 | 61 | 59 | 64 | 77 |
| Wind speed (mph) | 4.3 | 4.7 | 4.8 | 4.8 | 5.1 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 73 | 76 | 58 | 37 | 34 |
| Relative humidity (%) | 78 | 80 | 83 | 82 | 75 | 71 |
| Wind speed (mph) | 5.1 | 5.3 | 5.7 | 4.7 | 4.1 | 4.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Rancho Nuevo, about 40 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.