Achocalla weather in September

In September, Achocalla sees average daytime highs of 15°C and overnight lows near 1°C, with 36 mm of precipitation across 12.5 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Achocalla's 5th-clearest and 1st-windiest month. For the whole year in context, see Achocalla's year-round climate.

Daytime high
15°
3rd warmest
Overnight low
5th coldest
Precipitation
36 mm
12.5 wet days
Daylight
11 h 54 min
6:30 AM – 6:24 PM
Cloud cover
49%
5th clearest
Wind
8 km/h
1st windiest
Solar energy
6.66 kWh/m²
Travel score
4.5
out of 10

Achocalla is human settlement.

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 15°C through the month.

A typical September day in Achocalla reaches about 15°C in the afternoon and slips back to 1°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, September runs on par with August and on par with October.

-5°10°15°20°151015202530
Avg high (°C)Avg low (°C)
1150
2150
3150
4150
5150
6150
7150
8151
9151
10151
11151
12151
13151
14151
15151
16151
17151
18151
19152
20152
21152
22152
23152
24152
25152
26152
27152
28152
29152
30152

How September really feels in Achocalla

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 28 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
28
wind chill below the day's low

The story in September is cold — wind chill drags the overnight "feels like" below the raw low.

Achocalla weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan14° / 13226.40.812.92.4
Feb14° / 11523.20.612.62.4
Mar14° / 8923.40.512.12.7
Apr14° / 4313.80.311.63.8
May15° / 165.40.511.25.0
Jun14° / -2°113.60.8114.9
Jul14° / -2°144.41.411.14.8
Aug14° / -1°216.91.411.44.8
Sep15° / 3612.5111.94.5
Oct16° / 5516.11.112.44.1
Nov16° / 5716.20.412.84.0
Dec15° / 11222.80.7133.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 30% of September, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28119
38020
48020
57921
67723
77723
87624
97426
107327
117129
127030
136931
146733
156634
166535
176436
186337
196238
206139
216040
225941
235941
245842
255743
265644
275545
285545
295446
305347

Chance of precipitation in September

Any precipitationSnow

Achocalla gets around 36 mm of rain and snow over 12.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 40% and peaks near 48% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1293
2303
3313
4323
5333
6343
7353
8364
9374
10384
11384
12394
13394
14404
15414
16424
17434
18433
19443
20453
21453
22453
23463
24463
25463
26463
27473
28473
29474
30484

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 8 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 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 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 24 minutes over September. Sunrise moves from 6:42 AM to 6:18 AM, and sunset from 6:22 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:426:22
211.76:416:23
311.76:416:23
411.76:406:23
511.76:396:23
611.76:386:23
711.86:376:23
811.86:366:23
911.86:366:23
1011.86:356:24
1111.86:346:24
1211.86:336:24
1311.96:326:24
1411.96:316:24
1511.96:316:24
1611.96:306:24
1711.96:296:24
1811.96:286:24
1912.06:276:24
2012.06:266:25
2112.06:256:25
2212.06:256:25
2312.06:246:25
2412.06:236:25
2512.16:226:25
2612.16:216:25
2712.16:206:25
2812.16:206:26
2912.16:196:26
3012.16:186:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.66 kWh/m².

For context, solar energy here swings from a low near 5.25 kWh/m² to a high of 7.08 kWh/m² in November across the year — September's 6.66 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
Planning a trip in September

Hazard calendar for Achocalla

In seasonPeak

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

Achocalla's rainy season runs December–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 Achocalla?

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

4.5
Sightseeing
5th-best month of the year
Beach & pool
never really warm enough

September is a reasonable time to visit Achocalla for sightseeing.

What to pack for Achocalla in September

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

In September, Achocalla sees daytime highs around 15°C and nights near 1°C. Pack sun protection. Worth having: a warm layer and rain gear. About 13 days see rain.

sun protectiona warm layerrain gear

UV index in Achocalla in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Achocalla peaks around February 8 at about 18 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 8UV 18Jul 11UV 9
UV index (midday)Level
Jan18Extreme
Feb19Extreme
Mar17Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul9Very high
Aug13Extreme
Sep14Extreme
Oct16Extreme
Nov17Extreme
Dec17Extreme
Location & terrain

Where is Achocalla?

Achocalla sits at 16.6°S, 68.2°W, 3,664 m above sea level, in Bolivia. The nearest listed city is La Paz, 8.0 km away.

CaranaviSorataCopacabanaQuime

Topography around Achocalla

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

Within 3 km, the terrain around Achocalla has large variations in elevation — a maximum elevation change of 609 m around an average of 3,706 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,610 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,653 m.

The land around Achocalla is covered by grassland (48%) and bare terrain (30%) within 3 km, grassland (47%) and artificial surfaces (29%) within 16 km, and grassland (60%) within 80 km.

3 km
609 m
16 km
1,610 m
80 km
5,653 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewater
September weather nearby: La Paz 8.0 km · Viacha 18 km · Laja 25 km · Tiahuanaco 56 km · Caranavi 103 km · Sorata 104 km · Copacabana 109 km · Quime 109 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 Achocalla (-16.5739°, -68.1511°, elevation 3,664 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).