Puerto Rico weather in March
In March, Puerto Rico sees average daytime highs of 30°C and overnight lows near 20°C, with 137 mm of rain across 11.9 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.
Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 42% of the time in March, and the air most often feels muggy.
Daylight stretches from about 12 h 36 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is Puerto Rico's 5th-clearest and 12th-windiest month. For the whole year in context, see Puerto Rico's year-round climate.
- Daytime high
- 30°
- 4th warmest
- Overnight low
- 20°
- 9th coldest
- Rainfall
- 137 mm
- 11.9 wet days
- Daylight
- 12 h 12 min
- 6:44 AM – 6:56 PM
- Cloud cover
- 52%
- 5th clearest
- Wind
- 7 km/h
- 12th windiest
- Solar energy
- 5.11 kWh/m²
- Travel score
- 4.9
- out of 10
Puerto Rico is capital city of the Libertador General San Martín Department, in the Misiones Province of Argentina.
- Founded
- 1919
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Highs ease over the month, from about 31°C in the first days to 29°C by the end.
A typical March day in Puerto Rico reaches about 30°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, March runs about 1°C cooler than February and about 3°C warmer than April.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 31 | 20 |
| 2 | 31 | 20 |
| 3 | 31 | 20 |
| 4 | 31 | 20 |
| 5 | 31 | 20 |
| 6 | 31 | 20 |
| 7 | 31 | 20 |
| 8 | 31 | 20 |
| 9 | 31 | 20 |
| 10 | 31 | 20 |
| 11 | 30 | 20 |
| 12 | 30 | 20 |
| 13 | 30 | 20 |
| 14 | 30 | 20 |
| 15 | 30 | 20 |
| 16 | 30 | 20 |
| 17 | 30 | 20 |
| 18 | 30 | 20 |
| 19 | 30 | 19 |
| 20 | 30 | 19 |
| 21 | 30 | 19 |
| 22 | 30 | 19 |
| 23 | 29 | 19 |
| 24 | 29 | 19 |
| 25 | 29 | 19 |
| 26 | 29 | 19 |
| 27 | 29 | 19 |
| 28 | 29 | 19 |
| 29 | 29 | 19 |
| 30 | 29 | 18 |
| 31 | 29 | 18 |
How March really feels in Puerto Rico
Once humidity and wind are folded in, March averages 16 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Puerto Rico weather by month
How March compares with the rest of the year at a glance. March is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 32° / 21° | 151 | 14.9 | 13.5 | 3.7 |
| Feb | 31° / 21° | 154 | 14.4 | 12.9 | 4.0 |
| Mar | 30° / 20° | 137 | 11.9 | 12.2 | 4.9 |
| Apr | 27° / 17° | 141 | 9.7 | 11.4 | 6.5 |
| May | 23° / 14° | 162 | 9.2 | 10.7 | 7.0 |
| Jun | 21° / 12° | 154 | 9.1 | 10.3 | 6.7 |
| Jul | 21° / 11° | 125 | 9.1 | 10.5 | 6.9 |
| Aug | 24° / 13° | 90 | 7.6 | 11.1 | 7.6 |
| Sep | 26° / 15° | 153 | 10.2 | 11.8 | 6.8 |
| Oct | 28° / 17° | 206 | 13.2 | 12.6 | 5.8 |
| Nov | 30° / 18° | 167 | 11.4 | 13.3 | 5.1 |
| Dec | 31° / 20° | 181 | 14 | 13.7 | 4.1 |
Cloud cover in March
The sky is clear or mostly clear about 42% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 42%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 55 | 56 | 56 | 57 | 58 | 59 | 58 | 58 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 58 | 57 | 58 | 58 | 58 | 58 | 58 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 58 |
| Cloudier (%) | 45 | 44 | 44 | 43 | 42 | 41 | 42 | 42 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 43 | 42 | 42 | 42 | 42 | 42 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 55 | 45 |
| 2 | 56 | 44 |
| 3 | 56 | 44 |
| 4 | 57 | 43 |
| 5 | 58 | 42 |
| 6 | 59 | 41 |
| 7 | 58 | 42 |
| 8 | 58 | 42 |
| 9 | 59 | 41 |
| 10 | 59 | 41 |
| 11 | 59 | 41 |
| 12 | 59 | 41 |
| 13 | 58 | 42 |
| 14 | 58 | 42 |
| 15 | 58 | 42 |
| 16 | 58 | 42 |
| 17 | 58 | 42 |
| 18 | 57 | 43 |
| 19 | 58 | 42 |
| 20 | 58 | 42 |
| 21 | 58 | 42 |
| 22 | 58 | 42 |
| 23 | 58 | 42 |
| 24 | 59 | 41 |
| 25 | 58 | 42 |
| 26 | 58 | 42 |
| 27 | 58 | 42 |
| 28 | 58 | 42 |
| 29 | 58 | 42 |
| 30 | 58 | 42 |
| 31 | 58 | 42 |
Chance of precipitation in March
Puerto Rico gets around 137 mm of rain over 11.9 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 38% and peaks near 47% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 40 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 35 | 34 | 34 |
| Rain chance (%) | |
|---|---|
| 1 | 47 |
| 2 | 46 |
| 3 | 45 |
| 4 | 44 |
| 5 | 43 |
| 6 | 42 |
| 7 | 41 |
| 8 | 40 |
| 9 | 40 |
| 10 | 39 |
| 11 | 39 |
| 12 | 38 |
| 13 | 38 |
| 14 | 38 |
| 15 | 38 |
| 16 | 38 |
| 17 | 37 |
| 18 | 37 |
| 19 | 37 |
| 20 | 37 |
| 21 | 36 |
| 22 | 36 |
| 23 | 36 |
| 24 | 36 |
| 25 | 36 |
| 26 | 35 |
| 27 | 35 |
| 28 | 35 |
| 29 | 35 |
| 30 | 34 |
| 31 | 34 |
Humidity in March
Most of March feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the muggy band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 75% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 |
| Comfortable (%) | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 |
| Humid (%) | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 19 |
| Muggy (%) | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 37 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 | 44 |
| Oppressive (%) | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 23 | 23 | 23 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 4 | 16 | 29 | 49 | 1 |
| 2 | 0 | 4 | 16 | 30 | 48 | 1 |
| 3 | 0 | 4 | 17 | 31 | 47 | 1 |
| 4 | 0 | 4 | 17 | 32 | 46 | 1 |
| 5 | 0 | 3 | 17 | 33 | 45 | 1 |
| 6 | 0 | 3 | 18 | 34 | 44 | 1 |
| 7 | 0 | 3 | 18 | 35 | 43 | 1 |
| 8 | 0 | 3 | 18 | 36 | 42 | 1 |
| 9 | 0 | 3 | 18 | 37 | 41 | 1 |
| 10 | 0 | 3 | 19 | 37 | 40 | 1 |
| 11 | 0 | 3 | 19 | 38 | 40 | 1 |
| 12 | 0 | 3 | 19 | 39 | 39 | 1 |
| 13 | 0 | 3 | 19 | 40 | 38 | 1 |
| 14 | 0 | 3 | 19 | 40 | 37 | 1 |
| 15 | 0 | 4 | 19 | 41 | 36 | 1 |
| 16 | 0 | 4 | 19 | 41 | 35 | 1 |
| 17 | 0 | 5 | 19 | 42 | 34 | 0 |
| 18 | 1 | 5 | 19 | 42 | 33 | 0 |
| 19 | 1 | 6 | 19 | 42 | 32 | 0 |
| 20 | 1 | 6 | 19 | 42 | 31 | 0 |
| 21 | 1 | 7 | 19 | 43 | 30 | 0 |
| 22 | 2 | 7 | 19 | 43 | 29 | 0 |
| 23 | 2 | 8 | 19 | 43 | 28 | 0 |
| 24 | 2 | 9 | 19 | 43 | 27 | 0 |
| 25 | 2 | 9 | 19 | 44 | 26 | 0 |
| 26 | 3 | 9 | 19 | 44 | 25 | 0 |
| 27 | 3 | 10 | 18 | 44 | 25 | 0 |
| 28 | 3 | 10 | 18 | 44 | 24 | 0 |
| 29 | 4 | 10 | 18 | 44 | 23 | 0 |
| 30 | 4 | 10 | 18 | 44 | 23 | 0 |
| 31 | 5 | 10 | 19 | 44 | 23 | 0 |
Wind in March
Winds average 7 km/h in March, the calmest month.
Across March, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 8 | calm |
Sunrise & sunset in March
Daylight runs from about 12 h 36 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 48 minutes over March. Sunrise moves from 6:35 AM to 6:51 AM, and sunset from 7:11 PM to 6:39 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 |
| Sunrise (AM) | 6:35 | 6:36 | 6:37 | 6:37 | 6:38 | 6:38 | 6:39 | 6:40 | 6:40 | 6:41 | 6:41 | 6:42 | 6:42 | 6:43 | 6:43 | 6:44 | 6:44 | 6:45 | 6:45 | 6:46 | 6:46 | 6:47 | 6:47 | 6:48 | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 |
| Sunset (PM) | 7:11 | 7:10 | 7:09 | 7:08 | 7:07 | 7:06 | 7:05 | 7:04 | 7:03 | 7:02 | 7:01 | 7:00 | 6:59 | 6:58 | 6:57 | 6:56 | 6:55 | 6:53 | 6:52 | 6:51 | 6:50 | 6:49 | 6:48 | 6:47 | 6:46 | 6:44 | 6:43 | 6:42 | 6:41 | 6:40 | 6:39 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.6 | 6:35 | 7:11 |
| 2 | 12.6 | 6:36 | 7:10 |
| 3 | 12.5 | 6:37 | 7:09 |
| 4 | 12.5 | 6:37 | 7:08 |
| 5 | 12.5 | 6:38 | 7:07 |
| 6 | 12.5 | 6:38 | 7:06 |
| 7 | 12.4 | 6:39 | 7:05 |
| 8 | 12.4 | 6:40 | 7:04 |
| 9 | 12.4 | 6:40 | 7:03 |
| 10 | 12.4 | 6:41 | 7:02 |
| 11 | 12.3 | 6:41 | 7:01 |
| 12 | 12.3 | 6:42 | 7:00 |
| 13 | 12.3 | 6:42 | 6:59 |
| 14 | 12.3 | 6:43 | 6:58 |
| 15 | 12.2 | 6:43 | 6:57 |
| 16 | 12.2 | 6:44 | 6:56 |
| 17 | 12.2 | 6:44 | 6:55 |
| 18 | 12.1 | 6:45 | 6:53 |
| 19 | 12.1 | 6:45 | 6:52 |
| 20 | 12.1 | 6:46 | 6:51 |
| 21 | 12.1 | 6:46 | 6:50 |
| 22 | 12.0 | 6:47 | 6:49 |
| 23 | 12.0 | 6:47 | 6:48 |
| 24 | 12.0 | 6:48 | 6:47 |
| 25 | 12.0 | 6:48 | 6:46 |
| 26 | 11.9 | 6:49 | 6:44 |
| 27 | 11.9 | 6:49 | 6:43 |
| 28 | 11.9 | 6:50 | 6:42 |
| 29 | 11.8 | 6:50 | 6:41 |
| 30 | 11.8 | 6:51 | 6:40 |
| 31 | 11.8 | 6:51 | 6:39 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 5.11 kWh/m².
For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.44 kWh/m² in December across the year — March's 5.11 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.5 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.4 | Bright |
| 7 | 5.4 | Bright |
| 8 | 5.4 | Bright |
| 9 | 5.3 | Bright |
| 10 | 5.3 | Bright |
| 11 | 5.3 | Bright |
| 12 | 5.3 | Bright |
| 13 | 5.2 | Bright |
| 14 | 5.2 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.0 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.7 | Bright |
| 29 | 4.7 | Bright |
| 30 | 4.7 | Bright |
| 31 | 4.6 | Bright |
Is March a good time to visit Puerto Rico?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Puerto Rico for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Puerto Rico in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Puerto Rico sees daytime highs around 30°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.
UV index in Puerto Rico in March
Clear-sky midday UV in March peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Puerto Rico peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 13 | 12 | 8 | 6 | 4 | 4 | 6 | 8 | 8 | 11 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 12 | Extreme |
| Apr | 8 | Very high |
| May | 6 | High |
| Jun | 4 | Moderate |
| Jul | 4 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Air quality in Puerto Rico in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Puerto Rico is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 9 | 7 | 8 | 7 | 7 | 10 | 16 | 19 | 11 | 8 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 7 | Good |
| Apr | 8 | Good |
| May | 7 | Good |
| Jun | 7 | Good |
| Jul | 10 | Good |
| Aug | 16 | Moderate |
| Sep | 19 | Moderate |
| Oct | 11 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Puerto Rico?
Puerto Rico sits at 26.8°S, 55.0°W, 188 m above sea level, in Argentina. The nearest listed city is Jardín América, 33 km away.
Topography around Puerto Rico
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Puerto Rico.
Within 3 km, the terrain around Puerto Rico has only modest variations in elevation — a maximum elevation change of 161 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, significant variations in elevation — a maximum elevation change of 550 m.
The land around Puerto Rico is covered by trees (52%) and grassland (24%) within 3 km, trees (59%) and cropland (21%) within 16 km, and trees (65%) and cropland (24%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Puerto Rico (-26.8089°, -55.0215°, elevation 188 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).