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Isabel Segunda, Puerto Rico climate
Aw Tropical savanna (dry winter)
Isabel Segunda has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is August with an average daily high near 89°F, while the coldest is January averaging around 72°F at night. Around 48 inches of precipitation falls each year, peaking in May (6.4 inches) and easing off in February (1.7 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)Isabel Segunda climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 84 | 84 | 86 | 87 | 88 | 89 | 89 | 89 | 88 | 86 | 84 |
| Avg temp (°F) | 78 | 78 | 79 | 80 | 82 | 83 | 83 | 84 | 83 | 82 | 81 | 79 |
| Avg low (°F) | 72 | 72 | 73 | 74 | 76 | 78 | 78 | 78 | 77 | 76 | 75 | 73 |
| Precipitation (in) | 2.6 | 1.7 | 1.9 | 3.1 | 6.4 | 3.0 | 6.2 | 4.2 | 5.6 | 4.6 | 5.7 | 3.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 84 | 84 | 86 | 87 | 88 |
| Avg temp (°F) | 78 | 78 | 79 | 80 | 82 | 83 |
| Avg low (°F) | 72 | 72 | 73 | 74 | 76 | 78 |
| Precipitation (in) | 2.6 | 1.7 | 1.9 | 3.1 | 6.4 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 89 | 89 | 88 | 86 | 84 |
| Avg temp (°F) | 83 | 84 | 83 | 82 | 81 | 79 |
| Avg low (°F) | 78 | 78 | 77 | 76 | 75 | 73 |
| Precipitation (in) | 6.2 | 4.2 | 5.6 | 4.6 | 5.7 | 3.4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 11 | 10 | 11 | 13 | 13 | 15 | 14 | 15 | 15 | 15 | 15 |
| Days with high ≥ 90°F (days) | — | 0.1 | 0.0 | 0.7 | 3 | 6 | 9 | 10 | 9 | 8 | 2 | 0.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 11 | 10 | 11 | 13 | 13 |
| Days with high ≥ 90°F (days) | — | 0.1 | 0.0 | 0.7 | 3 | 6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 15 | 14 | 15 | 15 | 15 | 15 |
| Days with high ≥ 90°F (days) | 9 | 10 | 9 | 8 | 2 | 0.2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 43 | 41 | 42 | 43 | 58 | 56 | 51 | 49 | 55 | 52 | 51 | 45 |
| Relative humidity (%) | 77 | 76 | 75 | 76 | 79 | 79 | 79 | 79 | 80 | 80 | 79 | 78 |
| Wind speed (mph) | 9.8 | 9.8 | 9.1 | 8.8 | 8.8 | 9.6 | 10.2 | 9.5 | 8.2 | 7.9 | 8.9 | 9.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 43 | 41 | 42 | 43 | 58 | 56 |
| Relative humidity (%) | 77 | 76 | 75 | 76 | 79 | 79 |
| Wind speed (mph) | 9.8 | 9.8 | 9.1 | 8.8 | 8.8 | 9.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 49 | 55 | 52 | 51 | 45 |
| Relative humidity (%) | 79 | 79 | 80 | 80 | 79 | 78 |
| Wind speed (mph) | 10.2 | 9.5 | 8.2 | 7.9 | 8.9 | 9.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 20 years of daily observations at Roosevelt Roads, a weather station, about 24 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.