Villamontes weather in September

In September, Villamontes sees average daytime highs of 31°C and overnight lows near 17°C, with 18 mm of rain across 3.6 wet days and about 11.9 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 47% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Villamontes's 3rd-clearest and 1st-windiest month. For the whole year in context, see Villamontes's year-round climate.

Daytime high
31°
6th warmest
Overnight low
17°
5th coldest
Rainfall
18 mm
3.6 wet days
Daylight
11 h 54 min
6:12 AM – 6:05 PM
Cloud cover
47%
3rd clearest
Wind
7 km/h
1st windiest
Solar energy
5.2 kWh/m²
Travel score
5.4
out of 10

Villamontes is city in Bolivia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Villamontes reaches about 31°C in the afternoon and slips back to 17°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 39°C. Set against its neighbours, September runs about 3°C warmer than August and about 2°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13015
23015
33015
43015
53015
63016
73016
83016
93016
103016
113016
123016
133116
143116
153116
163117
173117
183117
193117
203117
213117
223117
233117
243117
253117
263118
273118
283218
293218
303218

How September really feels in Villamontes

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Villamontes weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°17316.513.13.0
Feb31° / 21°16414.312.73.7
Mar30° / 20°12313.912.24.4
Apr28° / 18°601011.56.0
May25° / 15°276.5117.3
Jun24° / 13°154.610.77.9
Jul24° / 11°133.410.88.2
Aug28° / 13°72.111.37.4
Sep31° / 17°183.611.95.4
Oct32° / 19°54912.53.9
Nov33° / 20°10111.5133.4
Dec33° / 21°14714.713.33.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26733
36634
46634
56535
66436
76436
86337
96337
106238
116238
126238
136337
146337
156337
166238
176238
186238
196238
206238
216040
226040
235941
245941
255743
265644
275545
285347
295248
305149

Chance of precipitation in September

Any precipitation

Villamontes gets around 18 mm of rain over 3.6 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 12% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
17
28
38
49
59
610
710
810
910
1010
1110
1210
1310
1410
1510
1611
1711
1811
1912
2012
2113
2213
2314
2415
2516
2617
2718
2818
2919
3020

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16622120
26523120
36523120
46423130
56423130
66423130
76324130
86324130
96324130
106225130
116225130
126225130
136125140
146125140
156025141
166025141
175925151
185925151
195725162
205824162
215624173
225524183
235324194
245323204
255123215
265023225
274823235
284624246
294524256
304324267

Wind in September

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

Across September, 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.

0246810151015202530
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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over September. Sunrise moves from 6:26 AM to 5:58 AM, and sunset from 6:01 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:266:01
211.66:256:01
311.66:256:01
411.66:246:02
511.76:236:02
611.76:226:02
711.76:216:02
811.76:206:03
911.76:196:03
1011.86:186:03
1111.86:176:03
1211.86:166:04
1311.86:156:04
1411.86:146:04
1511.96:136:04
1611.96:126:05
1711.96:116:05
1811.96:106:05
1911.96:096:05
2012.06:086:06
2112.06:076:06
2212.06:066:06
2312.06:056:06
2412.06:046:07
2512.16:036:07
2612.16:026:07
2712.16:016:07
2812.16:006:08
2912.25:596:08
3012.25:586:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.2 kWh/m².

For context, solar energy here swings from a low near 3.15 kWh/m² to a high of 5.9 kWh/m² in January across the year — September's 5.2 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Villamontes

In seasonPeak

None of Villamontes's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Villamontes's rainy season runs November–March, when most of the year's rain falls.

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

Is September a good time to visit Villamontes?

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

5.4
Sightseeing
6th-best month of the year
7.8
Beach & pool
2nd-best month of the year

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

What to pack for Villamontes in September

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

In September, Villamontes sees daytime highs around 31°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

UV index in Villamontes in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Villamontes peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 10UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr10Extreme
May8Very high
Jun6High
Jul6High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Villamontes in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Villamontes is worst in October — around 17 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (May, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1417 µg/m³May 245 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar7Good
Apr5Good
May5Good
Jun5Good
Jul5Good
Aug7Good
Sep14Moderate
Oct17Moderate
Nov11Good
Dec8Good
Location & terrain

Where is Villamontes?

Villamontes sits at 21.3°S, 63.5°W, 388 m above sea level, in Bolivia. The nearest listed city is Yacuiba, 87 km away.

YacuibaProfesor Salvador MazzaTarijaCamiriTartagalGeneral MosconiBermejoEmbarcación

Topography around Villamontes

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Villamontes.

Within 3 km, the terrain around Villamontes has only modest variations in elevation — a maximum elevation change of 152 m around an average of 408 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,339 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,850 m.

The land around Villamontes is covered by trees (56%) and artificial surfaces (27%) within 3 km, trees (84%) within 16 km, and trees (81%) within 80 km.

3 km
152 m
16 km
1,339 m
80 km
1,850 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Yacuiba 87 km · Profesor Salvador Mazza 90 km · Tarija 134 km · Camiri 136 km · Tartagal 144 km · General Mosconi 152 km · Bermejo 186 km · Embarcación 226 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 Villamontes (-21.2624°, -63.469°, elevation 388 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).