San Juan weather in August
In August, San Juan sees average daytime highs of 30°C and overnight lows near 22°C, with 154 mm of rain across 21.8 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 13% of the time in August, and the air most often feels oppressive.
Daylight stretches from about 11 h 48 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is San Juan's 1st-clearest and 9th-windiest month. For the whole year in context, see San Juan's year-round climate.
- Daytime high
- 30°
- 4th warmest
- Overnight low
- 22°
- 2nd coldest
- Rainfall
- 154 mm
- 21.8 wet days
- Daylight
- 11 h 54 min
- 6:01 AM – 5:53 PM
- Cloud cover
- 66%
- 1st clearest
- Wind
- 4 km/h
- 9th windiest
- Solar energy
- 4.77 kWh/m²
- Travel score
- 3.6
- out of 10
San Juan is human settlement.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 30°C through the month.
A typical August day in San Juan reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, August runs about 1°C warmer than July and on par with September.
| 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) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 22 |
| 2 | 30 | 22 |
| 3 | 30 | 22 |
| 4 | 30 | 22 |
| 5 | 30 | 22 |
| 6 | 30 | 22 |
| 7 | 30 | 22 |
| 8 | 30 | 22 |
| 9 | 30 | 22 |
| 10 | 30 | 22 |
| 11 | 30 | 22 |
| 12 | 30 | 22 |
| 13 | 30 | 22 |
| 14 | 30 | 22 |
| 15 | 30 | 22 |
| 16 | 30 | 22 |
| 17 | 30 | 22 |
| 18 | 30 | 23 |
| 19 | 30 | 23 |
| 20 | 30 | 23 |
| 21 | 30 | 23 |
| 22 | 30 | 23 |
| 23 | 30 | 23 |
| 24 | 30 | 23 |
| 25 | 30 | 23 |
| 26 | 30 | 23 |
| 27 | 30 | 23 |
| 28 | 30 | 23 |
| 29 | 30 | 23 |
| 30 | 30 | 23 |
| 31 | 30 | 23 |
How August really feels in San Juan
Once humidity and wind are folded in, August averages 31 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 August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Juan weather by month
How August compares with the rest of the year at a glance. August is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 252 | 25.9 | 12.2 | 3.0 |
| Feb | 30° / 24° | 233 | 24.5 | 12.1 | 2.9 |
| Mar | 30° / 24° | 304 | 28.4 | 12 | 2.8 |
| Apr | 30° / 23° | 294 | 27.3 | 11.9 | 2.9 |
| May | 29° / 23° | 271 | 26.7 | 11.8 | 3.2 |
| Jun | 29° / 23° | 219 | 25 | 11.8 | 3.4 |
| Jul | 29° / 22° | 166 | 23.3 | 11.8 | 3.8 |
| Aug | 30° / 22° | 154 | 21.8 | 11.9 | 3.6 |
| Sep | 31° / 23° | 179 | 23.5 | 12 | 3.2 |
| Oct | 31° / 23° | 201 | 25.9 | 12.1 | 2.9 |
| Nov | 30° / 24° | 235 | 25.8 | 12.2 | 2.9 |
| Dec | 30° / 24° | 263 | 27.2 | 12.2 | 2.9 |
Cloud cover in August
The sky is clear or mostly clear about 13% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 64%.
| 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 (%) | 41 | 41 | 40 | 41 | 41 | 40 | 40 | 39 | 38 | 38 | 37 | 36 | 36 | 36 | 36 | 35 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 33 | 33 | 32 | 32 | 32 | 31 | 31 |
| Cloudier (%) | 59 | 59 | 60 | 59 | 59 | 60 | 60 | 61 | 62 | 62 | 63 | 64 | 64 | 64 | 64 | 65 | 66 | 66 | 66 | 66 | 67 | 67 | 67 | 68 | 67 | 67 | 68 | 68 | 68 | 69 | 69 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 41 | 59 |
| 3 | 40 | 60 |
| 4 | 41 | 59 |
| 5 | 41 | 59 |
| 6 | 40 | 60 |
| 7 | 40 | 60 |
| 8 | 39 | 61 |
| 9 | 38 | 62 |
| 10 | 38 | 62 |
| 11 | 37 | 63 |
| 12 | 36 | 64 |
| 13 | 36 | 64 |
| 14 | 36 | 64 |
| 15 | 36 | 64 |
| 16 | 35 | 65 |
| 17 | 34 | 66 |
| 18 | 34 | 66 |
| 19 | 34 | 66 |
| 20 | 34 | 66 |
| 21 | 33 | 67 |
| 22 | 33 | 67 |
| 23 | 33 | 67 |
| 24 | 32 | 68 |
| 25 | 33 | 67 |
| 26 | 33 | 67 |
| 27 | 32 | 68 |
| 28 | 32 | 68 |
| 29 | 32 | 68 |
| 30 | 31 | 69 |
| 31 | 31 | 69 |
Chance of precipitation in August
San Juan gets around 154 mm of rain over 21.8 wet days in August, the driest month. 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 76% 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 (%) | 70 | 70 | 69 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | 70 | 70 | 71 | 71 | 72 | 73 | 73 | 74 | 74 | 75 | 75 | 75 | 76 | 76 |
| Rain chance (%) | |
|---|---|
| 1 | 70 |
| 2 | 70 |
| 3 | 69 |
| 4 | 69 |
| 5 | 68 |
| 6 | 68 |
| 7 | 68 |
| 8 | 68 |
| 9 | 68 |
| 10 | 68 |
| 11 | 68 |
| 12 | 68 |
| 13 | 68 |
| 14 | 69 |
| 15 | 69 |
| 16 | 69 |
| 17 | 69 |
| 18 | 70 |
| 19 | 70 |
| 20 | 71 |
| 21 | 71 |
| 22 | 72 |
| 23 | 73 |
| 24 | 73 |
| 25 | 74 |
| 26 | 74 |
| 27 | 75 |
| 28 | 75 |
| 29 | 75 |
| 30 | 76 |
| 31 | 76 |
Humidity in August
Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the oppressive band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 99% 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 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 |
| Oppressive (%) | 77 | 76 | 76 | 75 | 75 | 74 | 74 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 72 | 72 | 71 | 72 | 71 | 70 | 70 | 69 | 69 | 69 | 69 | 68 | 67 | 67 | 67 | 66 |
| Miserable (%) | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 30 | 30 | 31 | 32 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 4 | 77 | 18 |
| 2 | 1 | 4 | 76 | 19 |
| 3 | 1 | 4 | 76 | 19 |
| 4 | 1 | 4 | 75 | 20 |
| 5 | 1 | 4 | 75 | 20 |
| 6 | 1 | 4 | 74 | 21 |
| 7 | 1 | 4 | 74 | 21 |
| 8 | 1 | 4 | 73 | 22 |
| 9 | 1 | 4 | 73 | 22 |
| 10 | 1 | 4 | 73 | 22 |
| 11 | 1 | 4 | 73 | 22 |
| 12 | 1 | 4 | 72 | 23 |
| 13 | 1 | 4 | 72 | 23 |
| 14 | 1 | 4 | 72 | 23 |
| 15 | 1 | 4 | 72 | 23 |
| 16 | 1 | 4 | 72 | 23 |
| 17 | 1 | 4 | 72 | 23 |
| 18 | 1 | 4 | 71 | 24 |
| 19 | 1 | 3 | 72 | 24 |
| 20 | 1 | 3 | 71 | 25 |
| 21 | 1 | 3 | 70 | 26 |
| 22 | 1 | 3 | 70 | 26 |
| 23 | 1 | 3 | 69 | 27 |
| 24 | 1 | 3 | 69 | 27 |
| 25 | 0 | 3 | 69 | 28 |
| 26 | 0 | 3 | 69 | 28 |
| 27 | 0 | 3 | 68 | 29 |
| 28 | 0 | 3 | 67 | 30 |
| 29 | 0 | 3 | 67 | 30 |
| 30 | 0 | 2 | 67 | 31 |
| 31 | 0 | 2 | 66 | 32 |
Wind in August
Winds average 4 km/h in August.
Across August, daily wind ranges from about 4 km/h on the calmest days to 4 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) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 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 | 4 | calm |
| 2 | 4 | calm |
| 3 | 4 | calm |
| 4 | 4 | calm |
| 5 | 4 | calm |
| 6 | 4 | calm |
| 7 | 4 | calm |
| 8 | 4 | calm |
| 9 | 4 | calm |
| 10 | 4 | calm |
| 11 | 4 | calm |
| 12 | 4 | calm |
| 13 | 4 | calm |
| 14 | 4 | calm |
| 15 | 4 | calm |
| 16 | 4 | calm |
| 17 | 4 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
| 29 | 4 | calm |
| 30 | 4 | calm |
| 31 | 4 | calm |
Sunrise & sunset in August
Daylight runs from about 11 h 48 min at the start of August to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over August. Sunrise moves from 6:04 AM to 5:55 AM, and sunset from 5:54 PM to 5:51 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) | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:03 | 6:03 | 6:03 | 6:03 | 6:03 | 6:02 | 6:02 | 6:02 | 6:02 | 6:01 | 6:01 | 6:01 | 6:00 | 6:00 | 6:00 | 5:59 | 5:59 | 5:59 | 5:58 | 5:58 | 5:57 | 5:57 | 5:57 | 5:56 | 5:56 | 5:55 |
| Sunset (PM) | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:54 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:53 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:51 | 5:51 | 5:51 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 6:04 | 5:54 |
| 2 | 11.8 | 6:04 | 5:54 |
| 3 | 11.8 | 6:04 | 5:54 |
| 4 | 11.8 | 6:04 | 5:54 |
| 5 | 11.8 | 6:04 | 5:54 |
| 6 | 11.8 | 6:03 | 5:54 |
| 7 | 11.8 | 6:03 | 5:54 |
| 8 | 11.9 | 6:03 | 5:54 |
| 9 | 11.9 | 6:03 | 5:54 |
| 10 | 11.9 | 6:03 | 5:54 |
| 11 | 11.9 | 6:02 | 5:54 |
| 12 | 11.9 | 6:02 | 5:54 |
| 13 | 11.9 | 6:02 | 5:54 |
| 14 | 11.9 | 6:02 | 5:54 |
| 15 | 11.9 | 6:01 | 5:54 |
| 16 | 11.9 | 6:01 | 5:53 |
| 17 | 11.9 | 6:01 | 5:53 |
| 18 | 11.9 | 6:00 | 5:53 |
| 19 | 11.9 | 6:00 | 5:53 |
| 20 | 11.9 | 6:00 | 5:53 |
| 21 | 11.9 | 5:59 | 5:53 |
| 22 | 11.9 | 5:59 | 5:53 |
| 23 | 11.9 | 5:59 | 5:52 |
| 24 | 11.9 | 5:58 | 5:52 |
| 25 | 11.9 | 5:58 | 5:52 |
| 26 | 11.9 | 5:57 | 5:52 |
| 27 | 11.9 | 5:57 | 5:52 |
| 28 | 11.9 | 5:57 | 5:52 |
| 29 | 11.9 | 5:56 | 5:51 |
| 30 | 11.9 | 5:56 | 5:51 |
| 31 | 11.9 | 5:55 | 5:51 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 4.77 kWh/m².
For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 5.14 kWh/m² in September across the year — August's 4.77 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) | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| 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 | 4.5 | Bright |
| 2 | 4.5 | Bright |
| 3 | 4.5 | Bright |
| 4 | 4.5 | Bright |
| 5 | 4.5 | Bright |
| 6 | 4.6 | Bright |
| 7 | 4.6 | Bright |
| 8 | 4.6 | Bright |
| 9 | 4.6 | Bright |
| 10 | 4.6 | Bright |
| 11 | 4.7 | Bright |
| 12 | 4.7 | Bright |
| 13 | 4.7 | Bright |
| 14 | 4.7 | Bright |
| 15 | 4.7 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.8 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 5.0 | Bright |
| 28 | 5.0 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.0 | Bright |
| 31 | 5.0 | Bright |
Is August a good time to visit San Juan?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a weaker month for outdoor sightseeing in San Juan.
What to pack for San Juan in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, San Juan sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.
UV index in San Juan in August
Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Juan peaks around February 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 at about 9 (very 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) | 15 | 16 | 15 | 12 | 13 | 11 | 10 | 9 | 12 | 12 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 16 | Extreme |
| Mar | 15 | Extreme |
| Apr | 12 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in San Juan in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in San Juan is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (June, 9 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) | 14 | 15 | 15 | 12 | 10 | 9 | 10 | 13 | 15 | 10 | 11 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 15 | Moderate |
| Mar | 15 | Moderate |
| Apr | 12 | Moderate |
| May | 10 | Good |
| Jun | 9 | Good |
| Jul | 10 | Good |
| Aug | 13 | Moderate |
| Sep | 15 | Moderate |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 12 | Moderate |
Where is San Juan?
San Juan sits at 3.8°S, 73.3°W, 99 m above sea level, in Peru. The nearest listed city is Belen, 4.0 km away.
Topography around San Juan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Juan.
Within 3 km, the terrain around San Juan has only modest variations in elevation — a maximum elevation change of 37 m around an average of 94 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 78 m; within 80 km, only modest variations in elevation — a maximum elevation change of 116 m.
The land around San Juan is covered by trees (53%) and artificial surfaces (30%) within 3 km, trees (79%) within 16 km, and trees (96%) within 80 km.
Peru travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 220 V · 60 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $9,684
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 49%
- of population, 2024
- Homicide rate
- 8.6
- per 100k, 2021
- Road deaths
- 13.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 519
- 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 San Juan (-3.7761°, -73.2814°, elevation 99 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).