Laja weather in September

In September, Laja sees average daytime highs of 16°C and overnight lows near 2°C, with 30 mm of precipitation across 8.7 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 16°C through the month. The sky is clear or mostly clear about 46% 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 Laja's 5th-clearest and 1st-windiest month. For the whole year in context, see Laja's year-round climate.

Daytime high
16°
3rd warmest
Overnight low
5th coldest
Precipitation
30 mm
8.7 wet days
Daylight
11 h 54 min
6:31 AM – 6:25 PM
Cloud cover
44%
5th clearest
Wind
8 km/h
1st windiest
Solar energy
7.01 kWh/m²
Travel score
5.5
out of 10

Laja is human settlement 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 16°C through the month.

A typical September day in Laja reaches about 16°C in the afternoon and slips back to 2°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 19°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

-5°10°15°20°151015202530
Avg high (°C)Avg low (°C)
1161
2161
3161
4161
5161
6161
7161
8161
9161
10162
11162
12162
13162
14162
15162
16162
17162
18162
19162
20162
21163
22163
23163
24163
25173
26173
27173
28173
29173
30173

How September really feels in Laja

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 19 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
19
wind chill below the day's low

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

Laja 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° / 19427.41.212.92.4
Feb14° / 17224.50.912.62.4
Mar14° / 13325.10.512.12.7
Apr14° / 5114.60.211.63.8
May15° / 134.20.511.25.3
Jun14° / -1°82.40.7115.4
Jul14° / -1°102.81.111.15.3
Aug15° / 154.1111.45.7
Sep16° / 308.71.111.95.5
Oct17° / 5313.6112.44.9
Nov17° / 64150.112.84.5
Dec15° / 13723.70.9133.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 28% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18713
28614
38614
48515
58416
68416
78218
88119
98020
107921
117822
127723
137525
147426
157327
167228
177129
187030
196931
206832
216733
226634
236634
246535
256535
266436
276337
286337
296238
306139

Chance of precipitation in September

Any precipitationSnow

Laja gets around 30 mm of rain and snow over 8.7 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 28% and peaks near 35% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1203
2203
3213
4223
5223
6233
7244
8254
9254
10264
11264
12264
13274
14274
15274
16284
17284
18294
19304
20304
21313
22323
23323
24333
25333
26333
27343
28343
29353
30354

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 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
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
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:43 AM to 6:19 AM, and sunset from 6:23 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:436:23
211.76:426:24
311.76:416:24
411.76:416:24
511.76:406:24
611.86:396:24
711.86:386:24
811.86:376:24
911.86:376:24
1011.86:366:24
1111.86:356:25
1211.86:346:25
1311.96:336:25
1411.96:326:25
1511.96:316:25
1611.96:316:25
1711.96:306:25
1811.96:296:25
1912.06:286:25
2012.06:276:26
2112.06:266:26
2212.06:266:26
2312.06:256:26
2412.06:246:26
2512.16:236:26
2612.16:226:26
2712.16:216:26
2812.16:216:27
2912.16:206:27
3012.16:196:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 7.01 kWh/m².

For context, solar energy here swings from a low near 5.43 kWh/m² to a high of 7.55 kWh/m² in November across the year — September's 7.01 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.9Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
137.0Intense
147.0Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.2Intense
247.2Intense
257.2Intense
267.2Intense
277.2Intense
287.3Intense
297.3Intense
307.3Intense
Planning a trip in September

Hazard calendar for Laja

In seasonPeak

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

Laja's monsoon runs December–March, when most of the year's rain falls.

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

Is September a good time to visit Laja?

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

5.5
Sightseeing
2nd-best month of the year
Beach & pool
never really warm enough

September is a reasonable time to visit Laja for sightseeing.

What to pack for Laja in September

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

In September, Laja sees daytime highs around 16°C and nights near 2°C. Pack sun protection. Worth having: a warm layer and rain gear. About 9 days see rain.

sun protectiona warm layerrain gear

UV index in Laja in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Laja peaks around January 24 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 24UV 19Jul 10UV 10
UV index (midday)Level
Jan19Extreme
Feb19Extreme
Mar17Extreme
Apr15Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug13Extreme
Sep15Extreme
Oct17Extreme
Nov17Extreme
Dec18Extreme
Location & terrain

Where is Laja?

Laja sits at 16.5°S, 68.4°W, 3,856 m above sea level, in Bolivia. The nearest listed city is Viacha, 16 km away.

CopacabanaSorataIsla del SolCaranavi

Topography around Laja

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

Within 3 km, the terrain around Laja has only modest variations in elevation — a maximum elevation change of 128 m around an average of 3,853 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 463 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,611 m.

The land around Laja is covered by grassland (61%) and cropland (33%) within 3 km, grassland (54%) and cropland (38%) within 16 km, and grassland (62%) within 80 km.

3 km
128 m
16 km
463 m
80 km
5,611 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewaterwetland
September weather nearby: Viacha 16 km · La Paz 25 km · Achocalla 25 km · Tiahuanaco 32 km · Copacabana 85 km · Sorata 89 km · Isla del Sol 99 km · Caranavi 117 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 Laja (-16.5333°, -68.3833°, elevation 3,856 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).