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Coamo, Puerto Rico climate
Af Tropical rainforest
Coamo has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is August with an average daily high near 89°F, while the coldest is February averaging around 63°F at night. Around 73 inches of precipitation falls each year, peaking in May (9.0 inches) and easing off in March (3.1 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)Coamo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 83 | 84 | 86 | 88 | 90 | 89 | 89 | 89 | 88 | 85 | 83 |
| Avg temp (°F) | 73 | 73 | 74 | 75 | 78 | 80 | 79 | 80 | 79 | 79 | 77 | 74 |
| Avg low (°F) | 64 | 63 | 64 | 65 | 68 | 70 | 70 | 70 | 70 | 69 | 68 | 65 |
| Precipitation (in) | 5.1 | 3.3 | 3.1 | 6.5 | 9.0 | 3.6 | 5.4 | 6.6 | 8.2 | 7.6 | 8.5 | 6.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 83 | 84 | 86 | 88 | 90 |
| Avg temp (°F) | 73 | 73 | 74 | 75 | 78 | 80 |
| Avg low (°F) | 64 | 63 | 64 | 65 | 68 | 70 |
| Precipitation (in) | 5.1 | 3.3 | 3.1 | 6.5 | 9.0 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 89 | 89 | 88 | 85 | 83 |
| Avg temp (°F) | 79 | 80 | 79 | 79 | 77 | 74 |
| Avg low (°F) | 70 | 70 | 70 | 69 | 68 | 65 |
| Precipitation (in) | 5.4 | 6.6 | 8.2 | 7.6 | 8.5 | 6.6 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 10 | 9 | 12 | 9 | 11 | 13 | 12 | 12 | 13 | 11 |
| Days with high ≥ 90°F (days) | 0.3 | 0.3 | 2 | 4 | 8 | 13 | 11 | 14 | 11 | 7 | 2 | 0.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 10 | 9 | 12 | 9 |
| Days with high ≥ 90°F (days) | 0.3 | 0.3 | 2 | 4 | 8 | 13 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 13 | 12 | 12 | 13 | 11 |
| Days with high ≥ 90°F (days) | 11 | 14 | 11 | 7 | 2 | 0.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 56 | 56 | 57 | 56 | 67 | 64 | 61 | 59 | 63 | 59 | 59 | 55 |
| Relative humidity (%) | 78 | 76 | 74 | 75 | 78 | 79 | 79 | 79 | 80 | 81 | 81 | 79 |
| Wind speed (mph) | 9.3 | 9.4 | 8.9 | 8.7 | 8.6 | 9.2 | 9.9 | 9.2 | 7.9 | 7.4 | 8.3 | 9.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 56 | 56 | 57 | 56 | 67 | 64 |
| Relative humidity (%) | 78 | 76 | 74 | 75 | 78 | 79 |
| Wind speed (mph) | 9.3 | 9.4 | 8.9 | 8.7 | 8.6 | 9.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 59 | 63 | 59 | 59 | 55 |
| Relative humidity (%) | 79 | 79 | 80 | 81 | 81 | 79 |
| Wind speed (mph) | 9.9 | 9.2 | 7.9 | 7.4 | 8.3 | 9.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 19 years of daily observations at Corozal Substn, a weather station, about 27 km from the city centre. The underlying daily records come from NOAA's global station network.
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.