San Vicente weather in September

In September, San Vicente sees average daytime highs of 18°C and overnight lows near 6°C, with 64 mm of rain across 7.4 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is San Vicente's 8th-clearest and 7th-windiest month. For the whole year in context, see San Vicente's year-round climate.

Daytime high
18°
8th warmest
Overnight low
5th coldest
Rainfall
64 mm
7.4 wet days
Daylight
11 h 48 min
7:45 AM – 7:32 PM
Cloud cover
54%
8th clearest
Wind
5 km/h
7th windiest
Solar energy
4.71 kWh/m²
Travel score
6.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 19°C by the end.

A typical September day in San Vicente reaches about 18°C in the afternoon and slips back to 6°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, September runs about 2°C warmer than August and about 3°C cooler than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1176
2176
3176
4176
5176
6176
7176
8176
9176
10176
11186
12186
13186
14186
15186
16186
17186
18186
19186
20186
21186
22197
23197
24197
25197
26197
27197
28197
29197
30197

San Vicente weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 15°51147.8
Feb28° / 15°61.113.38.2
Mar26° / 13°131.512.38.8
Apr21° / 463.811.27.8
May17° / 1047.210.25.9
Jun14° / 1759.99.74.2
Jul14° / 1168.89.94.2
Aug16° / 100810.75.1
Sep18° / 647.411.86.2
Oct21° / 445.812.97.3
Nov24° / 11°193.513.88.4
Dec27° / 13°131.614.38.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 50%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54753
64753
74852
84951
94951
104951
115050
125050
135050
145149
155149
165149
175149
185149
195149
205149
215149
225149
235149
245149
255050
265050
275050
285149
295149
305248

Chance of precipitation in September

Any precipitation

San Vicente gets around 64 mm of rain over 7.4 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 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
128
228
328
428
528
628
727
827
926
1026
1125
1225
1325
1424
1524
1623
1723
1823
1922
2022
2123
2223
2323
2423
2523
2623
2724
2824
2924
3024

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 (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 12 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over September. Sunrise moves from 8:07 AM to 7:25 AM, and sunset from 7:21 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.28:077:21
211.38:057:22
311.38:047:23
411.48:027:24
511.48:017:24
611.48:007:25
711.57:587:26
811.57:577:26
911.57:557:27
1011.67:547:28
1111.67:527:29
1211.67:517:29
1311.77:497:30
1411.77:487:31
1511.87:467:32
1611.87:457:32
1711.87:447:33
1811.97:427:34
1911.97:417:34
2011.97:397:35
2112.07:387:36
2212.07:367:37
2312.07:357:37
2412.17:337:38
2512.17:327:39
2612.27:307:40
2712.27:297:40
2812.27:277:41
2912.37:267:42
3012.37:257:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.71 kWh/m².

For context, solar energy here swings from a low near 2.11 kWh/m² to a high of 8.81 kWh/m² in December across the year — September's 4.71 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
13.9Moderate
24.0Moderate
34.0Bright
44.1Bright
54.1Bright
64.2Bright
74.2Bright
84.3Bright
94.4Bright
104.4Bright
114.5Bright
124.5Bright
134.6Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.5Bright
Planning a trip in September

Hazard calendar for San Vicente

In seasonPeak

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

San Vicente's rainy season runs May–August, 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 San Vicente?

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

6.2
Sightseeing
8th-best month of the year
2.0
Beach & pool
8th-best month of the year

September is a reasonable time to visit San Vicente for sightseeing.

What to pack for San Vicente in September

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

In September, San Vicente sees daytime highs around 18°C and nights near 6°C. Worth packing: a warm layer and sun protection. About 7 days see rain.

a warm layersun protection

UV index in San Vicente in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Vicente peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 17UV 13Jun 16UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr5Moderate
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in San Vicente 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 San Vicente is worst in May — around 41 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (November, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 2040 µg/m³Nov 2319 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb22Moderate
Mar22Moderate
Apr29Moderate
May41Poor
Jun37Poor
Jul37Poor
Aug35Moderate
Sep32Moderate
Oct24Moderate
Nov19Moderate
Dec19Moderate
Location & terrain

Where is San Vicente?

San Vicente sits at 34.4°S, 71.1°W, 210 m above sea level, in Chile. The nearest listed city is San Vicente de Tagua Tagua, 1.0 km away.

Topography around San Vicente

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

Within 3 km, the terrain around San Vicente has significant variations in elevation — a maximum elevation change of 315 m around an average of 217 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,044 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,896 m.

The land around San Vicente is covered by cropland (37%) and trees (26%) within 3 km, trees (32%), cropland (31%) and shrubs (22%) within 16 km, and trees (29%) and grassland (26%) within 80 km.

3 km
315 m
16 km
1,044 m
80 km
4,896 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainsnow and icewater
September weather nearby: San Vicente de Tagua Tagua 1.0 km · Rengo 21 km · Chimbarongo 31 km · Santa Cruz 35 km · Rancagua 43 km · Machalí 49 km · Graneros 52 km · Curicó 63 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

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 San Vicente (-34.4333°, -71.0833°, elevation 210 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).