Trujillo Alto weather in May
In May, Trujillo Alto sees average daytime highs of 28°C and overnight lows near 23°C, with 142 mm of rain across 21.9 wet days and about 12.9 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 14% of the time in May, and the air most often feels oppressive.
Daylight stretches from about 12 h 42 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Trujillo Alto's 11th-clearest and 8th-windiest month. For the whole year in context, see Trujillo Alto's year-round climate.
- Daytime high
- 28°
- 6th warmest
- Overnight low
- 23°
- 7th coldest
- Rainfall
- 142 mm
- 21.9 wet days
- Daylight
- 12 h 54 min
- 5:54 AM – 6:46 PM
- Cloud cover
- 69%
- 11th clearest
- Wind
- 10 km/h
- 8th windiest
- Solar energy
- 6.37 kWh/m²
- Travel score
- 4.2
- out of 10
Temperature in May
Day-to-day highs hold fairly steady near 28°C through the month.
A typical May day in Trujillo Alto reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, May runs on par with April and about 1°C cooler than June.
| 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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 23 |
| 2 | 28 | 23 |
| 3 | 28 | 23 |
| 4 | 28 | 23 |
| 5 | 28 | 23 |
| 6 | 28 | 23 |
| 7 | 28 | 23 |
| 8 | 28 | 23 |
| 9 | 28 | 23 |
| 10 | 28 | 23 |
| 11 | 28 | 23 |
| 12 | 28 | 23 |
| 13 | 28 | 23 |
| 14 | 28 | 23 |
| 15 | 28 | 23 |
| 16 | 28 | 23 |
| 17 | 28 | 23 |
| 18 | 29 | 23 |
| 19 | 29 | 23 |
| 20 | 29 | 24 |
| 21 | 29 | 24 |
| 22 | 29 | 24 |
| 23 | 29 | 24 |
| 24 | 29 | 24 |
| 25 | 29 | 24 |
| 26 | 29 | 24 |
| 27 | 29 | 24 |
| 28 | 29 | 24 |
| 29 | 29 | 24 |
| 30 | 29 | 24 |
| 31 | 29 | 24 |
How May really feels in Trujillo Alto
Once humidity and wind are folded in, May averages 8 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Trujillo Alto weather by month
How May compares with the rest of the year at a glance. May is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 22° | 49 | 15.7 | 11 | 6.0 |
| Feb | 27° / 21° | 39 | 13 | 11.4 | 6.2 |
| Mar | 27° / 22° | 55 | 14.8 | 11.9 | 6.0 |
| Apr | 28° / 22° | 87 | 17.7 | 12.4 | 5.3 |
| May | 28° / 23° | 142 | 21.9 | 12.9 | 4.2 |
| Jun | 29° / 24° | 99 | 20.8 | 13.1 | 4.0 |
| Jul | 29° / 24° | 110 | 21.8 | 13 | 3.9 |
| Aug | 30° / 25° | 127 | 24 | 12.6 | 3.6 |
| Sep | 29° / 24° | 168 | 25.2 | 12.1 | 3.4 |
| Oct | 29° / 24° | 156 | 24.9 | 11.6 | 3.6 |
| Nov | 28° / 23° | 124 | 22.3 | 11.1 | 4.5 |
| Dec | 27° / 22° | 59 | 16.5 | 10.9 | 5.8 |
Cloud cover in May
The sky is clear or mostly clear about 14% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 25% of May, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to cloud over as the month goes on.
| 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 (%) | 53 | 52 | 51 | 49 | 47 | 46 | 44 | 43 | 41 | 40 | 39 | 37 | 37 | 36 | 35 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 |
| Cloudier (%) | 47 | 48 | 49 | 51 | 53 | 54 | 56 | 57 | 59 | 60 | 61 | 63 | 63 | 64 | 65 | 65 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 66 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 53 | 47 |
| 2 | 52 | 48 |
| 3 | 51 | 49 |
| 4 | 49 | 51 |
| 5 | 47 | 53 |
| 6 | 46 | 54 |
| 7 | 44 | 56 |
| 8 | 43 | 57 |
| 9 | 41 | 59 |
| 10 | 40 | 60 |
| 11 | 39 | 61 |
| 12 | 37 | 63 |
| 13 | 37 | 63 |
| 14 | 36 | 64 |
| 15 | 35 | 65 |
| 16 | 35 | 65 |
| 17 | 34 | 66 |
| 18 | 34 | 66 |
| 19 | 34 | 66 |
| 20 | 33 | 67 |
| 21 | 33 | 67 |
| 22 | 33 | 67 |
| 23 | 33 | 67 |
| 24 | 33 | 67 |
| 25 | 33 | 67 |
| 26 | 33 | 67 |
| 27 | 33 | 67 |
| 28 | 33 | 67 |
| 29 | 33 | 67 |
| 30 | 34 | 66 |
| 31 | 34 | 66 |
Chance of precipitation in May
Trujillo Alto gets around 142 mm of rain over 21.9 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 71% and peaks near 74% on the wettest days. The odds climb 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 (%) | 65 | 66 | 66 | 67 | 68 | 68 | 69 | 69 | 70 | 70 | 70 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 72 | 72 | 73 | 73 | 74 | 74 | 74 | 74 | 74 |
| Rain chance (%) | |
|---|---|
| 1 | 65 |
| 2 | 66 |
| 3 | 66 |
| 4 | 67 |
| 5 | 68 |
| 6 | 68 |
| 7 | 69 |
| 8 | 69 |
| 9 | 70 |
| 10 | 70 |
| 11 | 70 |
| 12 | 71 |
| 13 | 71 |
| 14 | 71 |
| 15 | 71 |
| 16 | 71 |
| 17 | 71 |
| 18 | 71 |
| 19 | 71 |
| 20 | 71 |
| 21 | 71 |
| 22 | 71 |
| 23 | 72 |
| 24 | 72 |
| 25 | 73 |
| 26 | 73 |
| 27 | 74 |
| 28 | 74 |
| 29 | 74 |
| 30 | 74 |
| 31 | 74 |
Humidity in May
Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the oppressive band about 84% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 24 | 23 | 22 | 21 | 19 | 18 | 17 | 16 | 14 | 13 | 12 | 11 | 9 | 8 | 7 | 6 | 5 | 5 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Oppressive (%) | 73 | 74 | 75 | 76 | 78 | 79 | 80 | 80 | 82 | 83 | 84 | 85 | 86 | 87 | 87 | 88 | 88 | 88 | 88 | 89 | 89 | 88 | 89 | 88 | 88 | 87 | 86 | 85 | 86 | 85 | 85 |
| Miserable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 12 | 13 | 13 | 14 | 14 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 24 | 73 | 2 |
| 2 | 1 | 23 | 74 | 2 |
| 3 | 1 | 22 | 75 | 2 |
| 4 | 1 | 21 | 76 | 2 |
| 5 | 1 | 19 | 78 | 2 |
| 6 | 1 | 18 | 79 | 2 |
| 7 | 1 | 17 | 80 | 2 |
| 8 | 1 | 16 | 80 | 3 |
| 9 | 1 | 14 | 82 | 3 |
| 10 | 0 | 13 | 83 | 4 |
| 11 | 0 | 12 | 84 | 4 |
| 12 | 0 | 11 | 85 | 4 |
| 13 | 0 | 9 | 86 | 5 |
| 14 | 0 | 8 | 87 | 5 |
| 15 | 0 | 7 | 87 | 6 |
| 16 | 0 | 6 | 88 | 6 |
| 17 | 0 | 5 | 88 | 7 |
| 18 | 0 | 5 | 88 | 7 |
| 19 | 0 | 4 | 88 | 8 |
| 20 | 0 | 3 | 89 | 8 |
| 21 | 0 | 3 | 89 | 8 |
| 22 | 0 | 3 | 88 | 9 |
| 23 | 0 | 2 | 89 | 9 |
| 24 | 0 | 2 | 88 | 10 |
| 25 | 0 | 2 | 88 | 10 |
| 26 | 0 | 2 | 87 | 11 |
| 27 | 0 | 2 | 86 | 12 |
| 28 | 0 | 2 | 85 | 13 |
| 29 | 0 | 1 | 86 | 13 |
| 30 | 0 | 1 | 85 | 14 |
| 31 | 0 | 1 | 85 | 14 |
Wind in May
Winds average 10 km/h in May.
Across May, daily wind ranges from about 10 km/h on the calmest days to 11 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) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 |
| 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 42 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over May. Sunrise moves from 6:02 AM to 5:51 AM, and sunset from 6:41 PM to 6:52 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) | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 |
| Sunrise (AM) | 6:02 | 6:01 | 6:00 | 6:00 | 5:59 | 5:59 | 5:58 | 5:58 | 5:57 | 5:57 | 5:56 | 5:56 | 5:56 | 5:55 | 5:55 | 5:54 | 5:54 | 5:54 | 5:53 | 5:53 | 5:53 | 5:53 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:51 | 5:51 | 5:51 | 5:51 |
| Sunset (PM) | 6:41 | 6:41 | 6:42 | 6:42 | 6:42 | 6:43 | 6:43 | 6:43 | 6:44 | 6:44 | 6:44 | 6:45 | 6:45 | 6:45 | 6:46 | 6:46 | 6:46 | 6:47 | 6:47 | 6:48 | 6:48 | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:50 | 6:51 | 6:51 | 6:51 | 6:52 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.7 | 6:02 | 6:41 |
| 2 | 12.7 | 6:01 | 6:41 |
| 3 | 12.7 | 6:00 | 6:42 |
| 4 | 12.7 | 6:00 | 6:42 |
| 5 | 12.7 | 5:59 | 6:42 |
| 6 | 12.7 | 5:59 | 6:43 |
| 7 | 12.7 | 5:58 | 6:43 |
| 8 | 12.8 | 5:58 | 6:43 |
| 9 | 12.8 | 5:57 | 6:44 |
| 10 | 12.8 | 5:57 | 6:44 |
| 11 | 12.8 | 5:56 | 6:44 |
| 12 | 12.8 | 5:56 | 6:45 |
| 13 | 12.8 | 5:56 | 6:45 |
| 14 | 12.8 | 5:55 | 6:45 |
| 15 | 12.8 | 5:55 | 6:46 |
| 16 | 12.9 | 5:54 | 6:46 |
| 17 | 12.9 | 5:54 | 6:46 |
| 18 | 12.9 | 5:54 | 6:47 |
| 19 | 12.9 | 5:53 | 6:47 |
| 20 | 12.9 | 5:53 | 6:48 |
| 21 | 12.9 | 5:53 | 6:48 |
| 22 | 12.9 | 5:53 | 6:48 |
| 23 | 12.9 | 5:52 | 6:49 |
| 24 | 12.9 | 5:52 | 6:49 |
| 25 | 13.0 | 5:52 | 6:50 |
| 26 | 13.0 | 5:52 | 6:50 |
| 27 | 13.0 | 5:52 | 6:50 |
| 28 | 13.0 | 5:51 | 6:51 |
| 29 | 13.0 | 5:51 | 6:51 |
| 30 | 13.0 | 5:51 | 6:51 |
| 31 | 13.0 | 5:51 | 6:52 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 6.37 kWh/m².
For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.55 kWh/m² in June across the year — May's 6.37 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) | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.5 | Intense |
| 2 | 6.5 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.5 | Intense |
| 6 | 6.4 | Intense |
| 7 | 6.4 | Intense |
| 8 | 6.4 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.4 | Intense |
| 13 | 6.4 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.4 | Intense |
| 16 | 6.4 | Intense |
| 17 | 6.4 | Intense |
| 18 | 6.4 | Intense |
| 19 | 6.4 | Intense |
| 20 | 6.4 | Intense |
| 21 | 6.4 | Intense |
| 22 | 6.4 | Intense |
| 23 | 6.4 | Intense |
| 24 | 6.4 | Intense |
| 25 | 6.4 | Intense |
| 26 | 6.4 | Intense |
| 27 | 6.4 | Intense |
| 28 | 6.4 | Intense |
| 29 | 6.4 | Intense |
| 30 | 6.4 | Intense |
| 31 | 6.4 | Intense |
Hazard calendar for Trujillo Alto
None of Trujillo Alto's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Trujillo Alto sits in the Atlantic hurricane belt; the season peaks August–October.
Trujillo Alto sees seasonal dust haze (July), heaviest in July.
Is May a good time to visit Trujillo Alto?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Trujillo Alto for sightseeing.
What to pack for Trujillo Alto in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Trujillo Alto sees daytime highs around 28°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 22 days see rain.
Sea temperature near Trujillo Alto in May
The nearest coast averages about 27°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 33 km away) is warmest in September at about 29°C and coldest in February near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 27 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in Trujillo Alto in May
Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Trujillo Alto peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).
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) | 8 | 10 | 12 | 13 | 11 | 12 | 12 | 12 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in Trujillo Alto in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Trujillo Alto is worst in July — around 25 µg/m³ PM2.5 (moderate), about 4.7× the cleanest month (January, 5 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) | 5 | 7 | 7 | 9 | 14 | 24 | 25 | 20 | 15 | 15 | 8 | 5 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 5 | Good |
| Feb | 7 | Good |
| Mar | 7 | Good |
| Apr | 9 | Good |
| May | 14 | Moderate |
| Jun | 24 | Moderate |
| Jul | 25 | Moderate |
| Aug | 20 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 8 | Good |
| Dec | 5 | Good |
Where is Trujillo Alto?
Trujillo Alto sits at 18.4°N, 66.0°W, 20 m above sea level, in Puerto Rico. The nearest listed city is Carolina, 6.0 km away.
Topography around Trujillo Alto
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Trujillo Alto.
Within 3 km, the terrain around Trujillo Alto has only modest variations in elevation — a maximum elevation change of 211 m around an average of 65 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 573 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,308 m.
The land around Trujillo Alto is covered by trees (61%) and artificial surfaces (36%) within 3 km, trees (51%) and artificial surfaces (25%) within 16 km, and water (64%) and trees (28%) within 80 km.
Puerto Rico travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 78% of US
- price level, 2025
- GDP per capita
- $40,620
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2015
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 14.6
- per 100k, 2023
- Income group
- High
- World Bank
- 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 Trujillo Alto (18.3547°, -66.0074°, elevation 20 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).