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San JuanPRPuerto Rico | ||
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| Today Sat Oct 10 | ||
Sun Oct 11 | ||
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Tue Oct 13 | ||
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| Today Sat Oct 10 | Sun Oct 11 | Mon Oct 12 | Tue Oct 13 | Wed Oct 14 | Thu Oct 15 | Fri Oct 16 | Sat Oct 17 | Sun Oct 18 | Mon Oct 19 | Tue Oct 20 | Wed Oct 21 | Thu Oct 22 | Fri Oct 23 | ||
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San JuanPRPuerto Rico | |||||||||||||||
Heat Seeker Score
Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.
Use the detailed page for charts, component scores, and weather inputs behind every monthly ranking.
Calculations are based on the last 8 years of historical weather data.
San Juan has consistently warm temperatures throughout the year, with all months falling within or near the comfort range
The temperature is most comfortable from January to May, and from October to December
The months of June through September have maximum temperatures that exceed the comfort range and enter the discomfort range
August and September are the hottest months, with a maximum temperature of 87.0F and 87.2F respectively.
Maximum Temperatures
| Period | San Juan |
|---|---|
| Jan | 81.1°F |
| Feb | 81.0°F |
| Mar | 82.2°F |
| Apr | 83.7°F |
| May | 85.5°F |
| Jun | 86.9°F |
| Jul | 86.9°F |
| Aug | 87.3°F |
| Sep | 87.4°F |
| Oct | 86.2°F |
| Nov | 84.0°F |
| Dec | 81.9°F |
| Average | 84.5°F |
Minimum Temperatures
| Period | San Juan |
|---|---|
| Jan | 71.2°F |
| Feb | 71.2°F |
| Mar | 71.6°F |
| Apr | 72.9°F |
| May | 74.8°F |
| Jun | 76.5°F |
| Jul | 76.6°F |
| Aug | 77.2°F |
| Sep | 77.2°F |
| Oct | 76.3°F |
| Nov | 74.5°F |
| Dec | 72.7°F |
| Average | 74.4°F |
San Juan experiences relatively consistent sun hours throughout the year, with slightly higher averages from March to June
Precipitation is generally low, but it notably increases in September and October
Overall, the city enjoys a tropical climate with stable sunshine and a marked rainy season in the fall.
Sunny Weather
| Period | San Juan |
|---|---|
| Jan | 2.7 hours/day |
| Feb | 2.7 hours/day |
| Mar | 3.8 hours/day |
| Apr | 4.0 hours/day |
| May | 3.6 hours/day |
| Jun | 4.1 hours/day |
| Jul | 3.8 hours/day |
| Aug | 3.4 hours/day |
| Sep | 3.0 hours/day |
| Oct | 2.6 hours/day |
| Nov | 2.3 hours/day |
| Dec | 2.7 hours/day |
| Average | 3.2 hours/day |
Precipitation Levels
| Period | San Juan |
|---|---|
| Jan | 0.1in |
| Feb | 0.2in |
| Mar | 0.1in |
| Apr | 0.1in |
| May | 0.1in |
| Jun | 0.1in |
| Jul | 0.1in |
| Aug | 0.1in |
| Sep | 0.3in |
| Oct | 0.3in |
| Nov | 0.2in |
| Dec | 0.1in |
| Average | 0.2in |
Wind Speed
| Period | San Juan |
|---|---|
| Jan | 11.6mph |
| Feb | 12.9mph |
| Mar | 12.0mph |
| Apr | 11.8mph |
| May | 11.9mph |
| Jun | 13.1mph |
| Jul | 13.6mph |
| Aug | 12.8mph |
| Sep | 11.0mph |
| Oct | 9.9mph |
| Nov | 10.3mph |
| Dec | 11.4mph |
| Average | 11.9mph |
Humidity
| Period | San Juan |
|---|---|
| Jan | 80.2% |
| Feb | 78.7% |
| Mar | 77.4% |
| Apr | 77.2% |
| May | 78.2% |
| Jun | 77.8% |
| Jul | 78.5% |
| Aug | 78.7% |
| Sep | 79.3% |
| Oct | 79.9% |
| Nov | 81.4% |
| Dec | 80.2% |
| Average | 79.0% |
San Juan experiences a relatively small variation in sunrise and sunset times throughout the year due to its tropical location. The sunrise varies by about an hour and sunset by around 1.5 hours.
Day length in San Juan fluctuates between 11 and 13 hours, with the longest days occurring in June and the shortest in December. This limited range is characteristic of locations near the equator.
Sunrise Time
| Period | San Juan |
|---|---|
| Jan | 6:59 |
| Feb | 6:52 |
| Mar | 6:31 |
| Apr | 6:08 |
| May | 5:52 |
| Jun | 5:49 |
| Jul | 5:57 |
| Aug | 6:07 |
| Sep | 6:12 |
| Oct | 6:19 |
| Nov | 6:31 |
| Dec | 6:49 |
| Average | 6:18 |
Sunset Time
| Period | San Juan |
|---|---|
| Jan | 18:09 |
| Feb | 18:25 |
| Mar | 18:34 |
| Apr | 18:41 |
| May | 18:51 |
| Jun | 19:02 |
| Jul | 19:04 |
| Aug | 18:50 |
| Sep | 18:26 |
| Oct | 18:02 |
| Nov | 17:48 |
| Dec | 17:52 |
| Average | 18:30 |
Useful Day Length
| Period | San Juan |
|---|---|
| Jan | 11:09 hours |
| Feb | 11:25 hours |
| Mar | 11:34 hours |
| Apr | 11:41 hours |
| May | 11:51 hours |
| Jun | 12:02 hours |
| Jul | 12:04 hours |
| Aug | 11:50 hours |
| Sep | 11:26 hours |
| Oct | 11:02 hours |
| Nov | 10:48 hours |
| Dec | 10:52 hours |
| Average | 11:30 hours |
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