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Cidra, Puerto Rico climate
Af Tropical rainforest
Cidra has a remarkably steady warm-temperate climate (Tropical rainforest, Köppen Af). The hottest month is August with an average daily high near 81°F, while the coldest is January averaging around 61°F at night. Around 62 inches of precipitation falls each year, peaking in September (9.3 inches) and easing off in February (2.9 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)Cidra climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 73 | 74 | 76 | 77 | 79 | 81 | 81 | 81 | 81 | 79 | 77 | 74 |
| Avg temp (°F) | 67 | 68 | 68 | 70 | 72 | 74 | 74 | 75 | 74 | 73 | 71 | 69 |
| Avg low (°F) | 61 | 61 | 61 | 63 | 65 | 67 | 67 | 68 | 68 | 67 | 65 | 63 |
| Precipitation (in) | 3.8 | 2.9 | 3.7 | 4.6 | 5.3 | 3.1 | 4.4 | 6.2 | 9.3 | 7.7 | 6.6 | 4.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 73 | 74 | 76 | 77 | 79 | 81 |
| Avg temp (°F) | 67 | 68 | 68 | 70 | 72 | 74 |
| Avg low (°F) | 61 | 61 | 61 | 63 | 65 | 67 |
| Precipitation (in) | 3.8 | 2.9 | 3.7 | 4.6 | 5.3 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 81 | 81 | 79 | 77 | 74 |
| Avg temp (°F) | 74 | 75 | 74 | 73 | 71 | 69 |
| Avg low (°F) | 67 | 68 | 68 | 67 | 65 | 63 |
| Precipitation (in) | 4.4 | 6.2 | 9.3 | 7.7 | 6.6 | 4.5 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 12 | 11 | 11 | 14 | 11 | 13 | 13 | 15 | 15 | 15 | 17 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.0 | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 12 | 11 | 11 | 14 | 11 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 13 | 13 | 15 | 15 | 15 | 17 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | — |
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 (%) | 80 | 77 | 74 | 75 | 78 | 80 | 80 | 80 | 81 | 82 | 83 | 82 |
| Wind speed (mph) | 8.4 | 8.6 | 8.2 | 8.1 | 8.1 | 8.7 | 9.3 | 8.5 | 7.2 | 6.8 | 7.4 | 8.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 56 | 56 | 57 | 56 | 67 | 64 |
| Relative humidity (%) | 80 | 77 | 74 | 75 | 78 | 80 |
| Wind speed (mph) | 8.4 | 8.6 | 8.2 | 8.1 | 8.1 | 8.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 59 | 63 | 59 | 59 | 55 |
| Relative humidity (%) | 80 | 80 | 81 | 82 | 83 | 82 |
| Wind speed (mph) | 9.3 | 8.5 | 7.2 | 6.8 | 7.4 | 8.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Aibonito 1 S, a weather station, about 12 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.