Riberalta weather in September
In September, Riberalta sees average daytime highs of 32°C and overnight lows near 23°C, with 84 mm of rain across 13.7 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 35% of the time in September, and the air most often feels oppressive.
Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Riberalta's 4th-clearest and 2nd-windiest month. For the whole year in context, see Riberalta's year-round climate.
- Daytime high
- 32°
- 1st warmest
- Overnight low
- 23°
- 5th coldest
- Rainfall
- 84 mm
- 13.7 wet days
- Daylight
- 11 h 54 min
- 6:20 AM – 6:17 PM
- Cloud cover
- 56%
- 4th clearest
- Wind
- 7 km/h
- 2nd windiest
- Solar energy
- 5.61 kWh/m²
- Travel score
- 3.6
- out of 10
Riberalta is city of Bolivia.
- Density
- 4,929/km²
- people per km²
- Founded
- 1897
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 32°C through the month.
A typical September day in Riberalta reaches about 32°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 35°C. Set against its neighbours, September runs on par with August and on par with October.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 32 | 22 |
| 2 | 32 | 22 |
| 3 | 32 | 22 |
| 4 | 32 | 22 |
| 5 | 32 | 22 |
| 6 | 32 | 22 |
| 7 | 32 | 22 |
| 8 | 32 | 22 |
| 9 | 32 | 22 |
| 10 | 32 | 23 |
| 11 | 32 | 23 |
| 12 | 32 | 23 |
| 13 | 32 | 23 |
| 14 | 32 | 23 |
| 15 | 32 | 23 |
| 16 | 32 | 23 |
| 17 | 32 | 23 |
| 18 | 32 | 23 |
| 19 | 32 | 23 |
| 20 | 32 | 23 |
| 21 | 32 | 23 |
| 22 | 32 | 23 |
| 23 | 32 | 23 |
| 24 | 32 | 23 |
| 25 | 32 | 23 |
| 26 | 32 | 23 |
| 27 | 32 | 23 |
| 28 | 32 | 23 |
| 29 | 32 | 23 |
| 30 | 32 | 23 |
How September really feels in Riberalta
Once humidity and wind are folded in, September averages 30 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Riberalta weather by month
How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 23° | 269 | 27.7 | 12.6 | 2.9 |
| Feb | 30° / 23° | 258 | 25.2 | 12.4 | 2.8 |
| Mar | 30° / 23° | 255 | 27.9 | 12.1 | 2.8 |
| Apr | 30° / 23° | 174 | 23.3 | 11.8 | 3.3 |
| May | 29° / 22° | 81 | 15.7 | 11.5 | 4.5 |
| Jun | 30° / 21° | 34 | 7 | 11.4 | 5.7 |
| Jul | 30° / 20° | 24 | 4.8 | 11.4 | 5.8 |
| Aug | 32° / 21° | 40 | 6.3 | 11.6 | 4.7 |
| Sep | 32° / 23° | 84 | 13.7 | 11.9 | 3.6 |
| Oct | 32° / 23° | 159 | 20.8 | 12.2 | 3.0 |
| Nov | 31° / 23° | 222 | 23.6 | 12.5 | 2.9 |
| Dec | 30° / 23° | 261 | 27 | 12.6 | 2.8 |
Cloud cover in September
The sky is clear or mostly clear about 35% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 44%. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 70 | 70 | 68 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 51 | 50 | 50 | 48 | 46 | 46 | 44 | 43 | 43 | 42 | 41 |
| Cloudier (%) | 30 | 30 | 32 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 49 | 50 | 50 | 52 | 54 | 54 | 56 | 57 | 57 | 58 | 59 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 70 | 30 |
| 2 | 70 | 30 |
| 3 | 68 | 32 |
| 4 | 68 | 32 |
| 5 | 67 | 33 |
| 6 | 66 | 34 |
| 7 | 65 | 35 |
| 8 | 64 | 36 |
| 9 | 63 | 37 |
| 10 | 62 | 38 |
| 11 | 61 | 39 |
| 12 | 60 | 40 |
| 13 | 59 | 41 |
| 14 | 58 | 42 |
| 15 | 57 | 43 |
| 16 | 56 | 44 |
| 17 | 55 | 45 |
| 18 | 54 | 46 |
| 19 | 53 | 47 |
| 20 | 51 | 49 |
| 21 | 50 | 50 |
| 22 | 50 | 50 |
| 23 | 48 | 52 |
| 24 | 46 | 54 |
| 25 | 46 | 54 |
| 26 | 44 | 56 |
| 27 | 43 | 57 |
| 28 | 43 | 57 |
| 29 | 42 | 58 |
| 30 | 41 | 59 |
Chance of precipitation in September
Riberalta gets around 84 mm of rain over 13.7 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 45% and peaks near 58% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 43 | 44 | 46 | 47 | 48 | 49 | 50 | 51 | 51 | 52 | 53 | 55 | 56 | 57 | 58 | 58 |
| Rain chance (%) | |
|---|---|
| 1 | 33 |
| 2 | 34 |
| 3 | 35 |
| 4 | 36 |
| 5 | 37 |
| 6 | 38 |
| 7 | 39 |
| 8 | 39 |
| 9 | 40 |
| 10 | 40 |
| 11 | 41 |
| 12 | 41 |
| 13 | 42 |
| 14 | 42 |
| 15 | 43 |
| 16 | 44 |
| 17 | 46 |
| 18 | 47 |
| 19 | 48 |
| 20 | 49 |
| 21 | 50 |
| 22 | 51 |
| 23 | 51 |
| 24 | 52 |
| 25 | 53 |
| 26 | 55 |
| 27 | 56 |
| 28 | 57 |
| 29 | 58 |
| 30 | 58 |
Humidity in September
Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 92% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 2 | 2 | 2 | 2 | 2 | 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 |
| Comfortable (%) | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 |
| Humid (%) | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Muggy (%) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 |
| Oppressive (%) | 65 | 66 | 67 | 67 | 67 | 68 | 68 | 68 | 69 | 68 | 69 | 69 | 69 | 68 | 68 | 68 | 67 | 67 | 66 | 68 | 67 | 67 | 67 | 67 | 68 | 67 | 67 | 67 | 68 | 67 |
| Miserable (%) | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 13 | 14 | 15 | 16 | 16 | 17 | 18 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 22 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 2 | 5 | 8 | 13 | 65 | 7 |
| 2 | 2 | 4 | 7 | 13 | 66 | 8 |
| 3 | 2 | 4 | 7 | 12 | 67 | 8 |
| 4 | 2 | 4 | 7 | 12 | 67 | 8 |
| 5 | 2 | 4 | 7 | 12 | 67 | 8 |
| 6 | 1 | 4 | 7 | 12 | 68 | 8 |
| 7 | 1 | 4 | 7 | 12 | 68 | 8 |
| 8 | 1 | 3 | 7 | 12 | 68 | 9 |
| 9 | 1 | 3 | 6 | 12 | 69 | 9 |
| 10 | 1 | 3 | 6 | 12 | 68 | 10 |
| 11 | 1 | 3 | 6 | 11 | 69 | 10 |
| 12 | 1 | 3 | 5 | 11 | 69 | 11 |
| 13 | 1 | 3 | 5 | 11 | 69 | 11 |
| 14 | 1 | 3 | 5 | 11 | 68 | 12 |
| 15 | 1 | 3 | 4 | 11 | 68 | 13 |
| 16 | 1 | 3 | 4 | 11 | 68 | 13 |
| 17 | 1 | 3 | 4 | 11 | 67 | 14 |
| 18 | 1 | 3 | 4 | 11 | 67 | 15 |
| 19 | 0 | 3 | 4 | 11 | 66 | 16 |
| 20 | 0 | 2 | 4 | 10 | 68 | 16 |
| 21 | 0 | 2 | 4 | 10 | 67 | 17 |
| 22 | 0 | 2 | 3 | 10 | 67 | 18 |
| 23 | 0 | 2 | 3 | 9 | 67 | 18 |
| 24 | 0 | 2 | 3 | 9 | 67 | 19 |
| 25 | 0 | 2 | 3 | 8 | 68 | 19 |
| 26 | 0 | 2 | 3 | 8 | 67 | 20 |
| 27 | 0 | 2 | 3 | 8 | 67 | 20 |
| 28 | 0 | 2 | 3 | 7 | 67 | 21 |
| 29 | 0 | 1 | 3 | 7 | 68 | 21 |
| 30 | 0 | 1 | 3 | 7 | 67 | 22 |
Wind in September
Winds average 7 km/h in September.
Across September, daily wind ranges from about 6 km/h on the calmest days to 7 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 |
| 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 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
Sunrise & sunset in September
Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over September. Sunrise moves from 6:30 AM to 6:11 AM, and sunset from 6:17 PM to 6:16 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:30 | 6:30 | 6:29 | 6:28 | 6:28 | 6:27 | 6:26 | 6:26 | 6:25 | 6:24 | 6:24 | 6:23 | 6:22 | 6:22 | 6:21 | 6:20 | 6:20 | 6:19 | 6:18 | 6:18 | 6:17 | 6:16 | 6:16 | 6:15 | 6:14 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 |
| Sunset (PM) | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 6:30 | 6:17 |
| 2 | 11.8 | 6:30 | 6:17 |
| 3 | 11.8 | 6:29 | 6:17 |
| 4 | 11.8 | 6:28 | 6:17 |
| 5 | 11.8 | 6:28 | 6:17 |
| 6 | 11.8 | 6:27 | 6:17 |
| 7 | 11.8 | 6:26 | 6:17 |
| 8 | 11.9 | 6:26 | 6:17 |
| 9 | 11.9 | 6:25 | 6:17 |
| 10 | 11.9 | 6:24 | 6:17 |
| 11 | 11.9 | 6:24 | 6:17 |
| 12 | 11.9 | 6:23 | 6:17 |
| 13 | 11.9 | 6:22 | 6:17 |
| 14 | 11.9 | 6:22 | 6:17 |
| 15 | 11.9 | 6:21 | 6:17 |
| 16 | 11.9 | 6:20 | 6:17 |
| 17 | 12.0 | 6:20 | 6:17 |
| 18 | 12.0 | 6:19 | 6:17 |
| 19 | 12.0 | 6:18 | 6:17 |
| 20 | 12.0 | 6:18 | 6:16 |
| 21 | 12.0 | 6:17 | 6:16 |
| 22 | 12.0 | 6:16 | 6:16 |
| 23 | 12.0 | 6:16 | 6:16 |
| 24 | 12.0 | 6:15 | 6:16 |
| 25 | 12.0 | 6:14 | 6:16 |
| 26 | 12.0 | 6:14 | 6:16 |
| 27 | 12.1 | 6:13 | 6:16 |
| 28 | 12.1 | 6:12 | 6:16 |
| 29 | 12.1 | 6:12 | 6:16 |
| 30 | 12.1 | 6:11 | 6:16 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 5.61 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 5.61 kWh/m² in September across the year — September's 5.61 kWh/m² sits near the top of that range.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.6 |
| 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 |
| 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 | 5.5 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.6 | Bright |
| 11 | 5.6 | Bright |
| 12 | 5.6 | Bright |
| 13 | 5.6 | Bright |
| 14 | 5.6 | Bright |
| 15 | 5.6 | Bright |
| 16 | 5.6 | Bright |
| 17 | 5.6 | Bright |
| 18 | 5.6 | Bright |
| 19 | 5.6 | Bright |
| 20 | 5.6 | Bright |
| 21 | 5.6 | Bright |
| 22 | 5.7 | Bright |
| 23 | 5.7 | Bright |
| 24 | 5.7 | Bright |
| 25 | 5.7 | Bright |
| 26 | 5.7 | Bright |
| 27 | 5.7 | Bright |
| 28 | 5.7 | Bright |
| 29 | 5.7 | Bright |
| 30 | 5.6 | Bright |
Hazard calendar for Riberalta
None of Riberalta's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Riberalta's rainy season runs October–April, when most of the year's rain falls.
Is September a good time to visit Riberalta?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a weaker month for outdoor sightseeing in Riberalta.
What to pack for Riberalta in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Riberalta sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.
UV index in Riberalta in September
Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Riberalta peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 12 at about 5 (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) | 15 | 15 | 14 | 12 | 10 | 9 | 8 | 7 | 4 | 12 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 12 | Extreme |
| May | 10 | Extreme |
| Jun | 9 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | High |
| Sep | 4 | Moderate |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Riberalta in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Riberalta is worst in September — around 58 µg/m³ PM2.5 (unhealthy), about 7.3× the cleanest month (May, 8 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) | 12 | 13 | 13 | 10 | 8 | 8 | 15 | 40 | 58 | 27 | 14 | 11 |
| Level | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Poor | Unhealthy | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 13 | Moderate |
| Mar | 13 | Moderate |
| Apr | 10 | Good |
| May | 8 | Good |
| Jun | 8 | Good |
| Jul | 15 | Moderate |
| Aug | 40 | Poor |
| Sep | 58 | Unhealthy |
| Oct | 27 | Moderate |
| Nov | 14 | Moderate |
| Dec | 11 | Good |
Where is Riberalta?
Riberalta sits at 11.0°S, 66.1°W, 145 m above sea level, in Bolivia. The nearest listed city is Guayaramerín, 79 km away.
Topography around Riberalta
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Riberalta.
Within 3 km, the terrain around Riberalta has only modest variations in elevation — a maximum elevation change of 51 m around an average of 135 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 83 m; within 80 km, only modest variations in elevation — a maximum elevation change of 101 m.
The land around Riberalta is covered by artificial surfaces (41%), grassland (27%) and trees (21%) within 3 km, trees (71%) within 16 km, and trees (91%) within 80 km.
Bolivia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 50 Hz
- Prices
- ≈ 40% of US
- price level, 2025
- GDP per capita
- $5,148
- 2025
- Happiness
- 5.8 / 10
- World Happiness, 2025
- Homicide rate
- 4.4
- per 100k, 2023
- Road deaths
- 21.1
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 521
- 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 Riberalta (-11.0103°, -66.0526°, elevation 145 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).