Riberalta weather in August

In August, Riberalta sees average daytime highs of 32°C and overnight lows near 21°C, with 40 mm of rain across 6.3 wet days and about 11.6 hours of daylight. It is the 2nd-warmest and 10th-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 60% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of August to 11 h 48 min by month's end. Set against the rest of the year, August is Riberalta's 2nd-clearest and 1st-windiest month. For the whole year in context, see Riberalta's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
21°
3rd coldest
Rainfall
40 mm
6.3 wet days
Daylight
11 h 36 min
6:39 AM – 6:17 PM
Cloud cover
39%
2nd clearest
Wind
7 km/h
1st windiest
Solar energy
5.33 kWh/m²
Travel score
4.7
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical August day in Riberalta reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, August runs about 2°C warmer than July and on par with September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53121
63121
73221
83221
93221
103221
113221
123221
133221
143221
153221
163221
173221
183221
193221
203221
213221
223221
233222
243222
253222
263222
273222
283222
293222
303222
313222

How August really feels in Riberalta

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.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Riberalta weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°26927.712.62.9
Feb30° / 23°25825.212.42.8
Mar30° / 23°25527.912.12.8
Apr30° / 23°17423.311.83.3
May29° / 22°8115.711.54.5
Jun30° / 21°34711.45.7
Jul30° / 20°244.811.45.8
Aug32° / 21°406.311.64.7
Sep32° / 23°8413.711.93.6
Oct32° / 23°15920.812.23.0
Nov31° / 23°22223.612.52.9
Dec30° / 23°2612712.62.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 24%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18119
28119
38020
48020
57921
67921
77921
87723
97723
107723
117723
127624
137624
147624
157624
167624
177624
187624
197624
207624
217624
227624
237624
247525
257525
267426
277327
287327
297327
307228
317129

Chance of precipitation in August

Any precipitation

Riberalta gets around 40 mm of rain over 6.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
113
213
313
413
514
614
715
816
917
1018
1119
1220
1320
1421
1521
1621
1722
1822
1922
2023
2123
2224
2324
2425
2526
2627
2728
2828
2929
3031
3132

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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 50% of days. Sticky, muggy-or-worse air turns up on roughly 79% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1461338381
2461338381
3461338391
4461337391
5461336401
6461335411
7461434411
8461433421
9461431442
10461430452
11461429452
12461428462
13461427472
14461427482
15461326492
16451326502
17451325503
18451224523
19451224523
20451123543
21451122553
22351021574
23351021574
24351020584
2535919595
2635919595
2735918596
2835817616
2935816626
3035815627
3125814647

Wind in August

Winds average 7 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 30 min at the start of August to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over August. Sunrise moves from 6:45 AM to 6:31 AM, and sunset from 6:16 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:456:16
211.56:456:16
311.56:446:16
411.56:446:16
511.56:446:16
611.56:436:16
711.66:436:16
811.66:436:17
911.66:426:17
1011.66:426:17
1111.66:426:17
1211.66:416:17
1311.66:416:17
1411.66:406:17
1511.66:406:17
1611.66:396:17
1711.66:396:17
1811.76:386:17
1911.76:386:17
2011.76:376:17
2111.76:376:18
2211.76:366:18
2311.76:366:18
2411.76:356:18
2511.76:356:18
2611.76:346:18
2711.76:336:18
2811.76:336:18
2911.86:326:18
3011.86:326:18
3111.86:316:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.33 kWh/m².

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 — August's 5.33 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in August

Hazard calendar for Riberalta

In seasonPeak

None of Riberalta's seasonal hazards are active in August. 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.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Riberalta?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.7
Sightseeing
3rd-best month of the year
7.3
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Riberalta for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Riberalta in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Riberalta sees daytime highs around 32°C and nights near 21°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Riberalta in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 22UV 15Sep 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Extreme
Jun9Very high
Jul8Very high
Aug7High
Sep4Moderate
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Riberalta in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateSep 1455 µg/m³May 218 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb13Moderate
Mar13Moderate
Apr10Good
May8Good
Jun8Good
Jul15Moderate
Aug40Poor
Sep58Unhealthy
Oct27Moderate
Nov14Moderate
Dec11Good
Location & terrain

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.

Nova MamoréPlácido de CastroSenador GuiomardRio BrancoPorto AcreBuritis

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.

3 km
51 m
16 km
83 m
80 km
101 m
treesshrubsgrasslandartificial surfaceswaterwetland
August weather nearby: Guayaramerín 79 km · Guajará Mirim 82 km · Nova Mamoré 104 km · Plácido de Castro 145 km · Senador Guiomard 208 km · Rio Branco 224 km · Porto Acre 226 km · Buritis 259 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
Roman Catholic 65%Protestant 20%none 6%other 5%

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).