Placilla weather in September

In September, Placilla sees average daytime highs of 15°C and overnight lows near 9°C, with 24 mm of rain across 2.7 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 5th-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 49% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Placilla's 8th-clearest and 4th-windiest month. For the whole year in context, see Placilla's year-round climate.

Daytime high: 15°; 9th warmest
Overnight low: 9°; 4th coldest
Rainfall: 24 mm; 2.7 wet days
Daylight: 11 h 48 min; 7:47 AM – 7:35 PM
Cloud cover: 45%; 8th clearest
Wind: 12 km/h; 4th windiest
Solar energy: 5.23 kWh/m²
Travel score: 5.6; out of 10

Placilla is city in Chile.

Density: 2,520/km²; people per km²

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

← August Placilla year-round climate October →Best places to visit in September

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

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 Placilla reaches about 15°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16
Avg low (°C)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	15	9
15	15	9
16	15	9
17	15	9
18	15	9
19	15	10
20	15	10
21	15	10
22	15	10
23	15	10
24	15	10
25	16	10
26	16	10
27	16	10
28	16	10
29	16	10
30	16	10

Placilla weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	21° / 15°	0	0.1	13.9	8.7
Feb	20° / 14°	1	0.2	13.2	8.7
Mar	20° / 13°	3	0.6	12.3	8.4
Apr	18° / 12°	14	1.9	11.2	7.3
May	16° / 10°	51	4	10.3	5.8
Jun	15° / 9°	106	6.5	9.9	4.7
Jul	14° / 8°	60	5	10	4.6
Aug	14° / 8°	53	4.5	10.8	4.9
Sep	15° / 9°	24	2.7	11.8	5.6
Oct	17° / 11°	13	1.7	12.8	6.6
Nov	18° / 12°	2	0.6	13.7	7.9
Dec	19° / 13°	3	0.3	14.1	8.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 37%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	59	58	59	59	60	61	61	62	62	62	63	63	64	64	64	64	64	65	65	65	64	64	64	64	64	64	64	64	65	65
Cloudier (%)	41	42	41	41	40	39	39	38	38	38	37	37	36	36	36	36	36	35	35	35	36	36	36	36	36	36	36	36	35	35

	Clearer (%)	Cloudier (%)
1	59	41
2	58	42
3	59	41
4	59	41
5	60	40
6	61	39
7	61	39
8	62	38
9	62	38
10	62	38
11	63	37
12	63	37
13	64	36
14	64	36
15	64	36
16	64	36
17	64	36
18	65	35
19	65	35
20	65	35
21	64	36
22	64	36
23	64	36
24	64	36
25	64	36
26	64	36
27	64	36
28	64	36
29	65	35
30	65	35

Chance of precipitation in September

Any precipitation

Placilla gets around 24 mm of rain over 2.7 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 9% and peaks near 14% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	14	13	13	13	12	12	12	11	11	11	10	10	10	9	9	9	8	8	8	7	7	7	7	7	7	7	7	7	8	8

	Rain chance (%)
1	14
2	13
3	13
4	13
5	12
6	12
7	12
8	11
9	11
10	11
11	10
12	10
13	10
14	9
15	9
16	9
17	8
18	8
19	8
20	7
21	7
22	7
23	7
24	7
25	7
26	7
27	7
28	7
29	8
30	8

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	12	light breeze
2	12	light breeze
3	12	light breeze
4	12	light breeze
5	12	light breeze
6	12	light breeze
7	12	light breeze
8	12	light breeze
9	12	light breeze
10	12	light breeze
11	12	light breeze
12	12	light breeze
13	12	light breeze
14	13	light breeze
15	13	light breeze
16	13	light breeze
17	13	light breeze
18	13	light breeze
19	13	light breeze
20	13	light breeze
21	13	light breeze
22	12	light breeze
23	12	light breeze
24	12	light breeze
25	12	light breeze
26	12	light breeze
27	12	light breeze
28	12	light breeze
29	12	light breeze
30	12	light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 18 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 60 minutes over September. Sunrise moves from 8:08 AM to 7:27 AM, and sunset from 7:24 PM to 7:44 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.3	11.3	11.3	11.4	11.4	11.5	11.5	11.5	11.6	11.6	11.6	11.7	11.7	11.7	11.8	11.8	11.8	11.9	11.9	11.9	12.0	12.0	12.0	12.1	12.1	12.1	12.2	12.2	12.3	12.3
Sunrise (AM)	8:08	8:06	8:05	8:03	8:02	8:01	7:59	7:58	7:57	7:55	7:54	7:52	7:51	7:49	7:48	7:47	7:45	7:44	7:42	7:41	7:40	7:38	7:37	7:35	7:34	7:32	7:31	7:30	7:28	7:27
Sunset (PM)	7:24	7:25	7:26	7:26	7:27	7:28	7:28	7:29	7:30	7:31	7:31	7:32	7:33	7:33	7:34	7:35	7:35	7:36	7:37	7:37	7:38	7:39	7:39	7:40	7:41	7:41	7:42	7:43	7:44	7:44

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	8:08	7:24
2	11.3	8:06	7:25
3	11.3	8:05	7:26
4	11.4	8:03	7:26
5	11.4	8:02	7:27
6	11.5	8:01	7:28
7	11.5	7:59	7:28
8	11.5	7:58	7:29
9	11.6	7:57	7:30
10	11.6	7:55	7:31
11	11.6	7:54	7:31
12	11.7	7:52	7:32
13	11.7	7:51	7:33
14	11.7	7:49	7:33
15	11.8	7:48	7:34
16	11.8	7:47	7:35
17	11.8	7:45	7:35
18	11.9	7:44	7:36
19	11.9	7:42	7:37
20	11.9	7:41	7:37
21	12.0	7:40	7:38
22	12.0	7:38	7:39
23	12.0	7:37	7:39
24	12.1	7:35	7:40
25	12.1	7:34	7:41
26	12.1	7:32	7:41
27	12.2	7:31	7:42
28	12.2	7:30	7:43
29	12.3	7:28	7:44
30	12.3	7:27	7:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.23 kWh/m².

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 8.9 kWh/m² in December across the year — September's 5.23 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	4.5	4.5	4.5	4.6	4.6	4.7	4.8	4.8	4.9	4.9	5.0	5.0	5.1	5.2	5.2	5.3	5.3	5.4	5.5	5.5	5.6	5.6	5.7	5.7	5.8	5.8	5.8	5.9	5.9	6.0
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.5	Bright
2	4.5	Bright
3	4.5	Bright
4	4.6	Bright
5	4.6	Bright
6	4.7	Bright
7	4.8	Bright
8	4.8	Bright
9	4.9	Bright
10	4.9	Bright
11	5.0	Bright
12	5.0	Bright
13	5.1	Bright
14	5.2	Bright
15	5.2	Bright
16	5.3	Bright
17	5.3	Bright
18	5.4	Bright
19	5.5	Bright
20	5.5	Bright
21	5.6	Bright
22	5.6	Bright
23	5.7	Bright
24	5.7	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.9	Bright
29	5.9	Bright
30	6.0	Bright

Planning a trip in September

Is September a good time to visit Placilla?

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

5.6

Sightseeing

9th-best month of the year

0.2

Beach & pool

9th-best month of the year

September is a reasonable time to visit Placilla for sightseeing.

What to pack for Placilla in September

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

In September, Placilla sees daytime highs around 15°C and nights near 9°C. Worth packing: a warm layer and sun protection.

a warm layersun protection

Sea temperature near Placilla in September

The nearest coast averages about 13°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 km away) is warmest in February at about 17°C and coldest in August near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	17	17	17	15	14	14	13	13	13	13	14	16
Comfort	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool

	Sea temperature (°C)	Comfort
Jan	17	Cool
Feb	17	Cool
Mar	17	Cool
Apr	15	Cool
May	14	Bracing
Jun	14	Bracing
Jul	13	Bracing
Aug	13	Bracing
Sep	13	Bracing
Oct	13	Bracing
Nov	14	Bracing
Dec	16	Cool

UV index in Placilla 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 Placilla peaks around January 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	12	10	5	3	3	3	4	6	9	11	12
Level	Extreme	Extreme	Extreme	High	Moderate	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	12	Extreme
Mar	10	Extreme
Apr	5	High
May	3	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	4	Moderate
Sep	6	High
Oct	9	Very high
Nov	11	Extreme
Dec	12	Extreme

Air quality in Placilla 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 Placilla is worst in July — around 100 µg/m³ PM2.5 (unhealthy), about 3.2× the cleanest month (February, 31 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	34	31	39	62	89	93	100	86	70	46	39	37
Level	Moderate	Moderate	Poor	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Poor

	PM2.5 (µg/m³)	Level
Jan	34	Moderate
Feb	31	Moderate
Mar	39	Poor
Apr	62	Unhealthy
May	89	Unhealthy
Jun	93	Unhealthy
Jul	100	Unhealthy
Aug	86	Unhealthy
Sep	70	Unhealthy
Oct	46	Poor
Nov	39	Poor
Dec	37	Poor

Location & terrain

Where is Placilla?

Placilla sits at 33.1°S, 71.6°W, 335 m above sea level, in Chile. The nearest listed city is Vina del Mar, 10 km away.

Topography around Placilla

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

Within 3 km, the terrain around Placilla has significant variations in elevation — a maximum elevation change of 275 m around an average of 357 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 598 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,320 m.

The land around Placilla is covered by trees (57%) and artificial surfaces (25%) within 3 km, trees (40%) within 16 km, and water (33%) and shrubs (24%) within 80 km.

3 km

275 m

trees 57%

16 km

598 m

trees 40%

80 km

2,320 m

water 33%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← August Placilla year-round climate October →Best places to visit in September

September weather nearby: Vina del Mar 10 km · Valparaiso 10 km · Quilpué 14 km · Villa Alemana 20 km · Concón 22 km · Casablanca 27 km · Limache 31 km · El Quisco 34 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

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 Placilla (-33.1144°, -71.5681°, elevation 335 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	15	9
15	15	9
16	15	9
17	15	9
18	15	9
19	15	10
20	15	10
21	15	10
22	15	10
23	15	10
24	15	10
25	16	10
26	16	10
27	16	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	59	41
2	58	42
3	59	41
4	59	41
5	60	40
6	61	39
7	61	39
8	62	38
9	62	38
10	62	38
11	63	37
12	63	37
13	64	36
14	64	36
15	64	36
16	64	36
17	64	36
18	65	35
19	65	35
20	65	35
21	64	36
22	64	36
23	64	36
24	64	36
25	64	36
26	64	36
27	64	36
28	64	36
29	65	35
30	65	35

	Rain chance (%)
1	14
2	13
3	13
4	13
5	12
6	12
7	12
8	11
9	11
10	11
11	10
12	10
13	10
14	9
15	9
16	9
17	8
18	8
19	8
20	7
21	7
22	7
23	7
24	7
25	7
26	7
27	7
28	7
29	8
30	8

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	15	9
15	15	9
16	15	9
17	15	9
18	15	9
19	15	10
20	15	10
21	15	10
22	15	10
23	15	10
24	15	10
25	16	10
26	16	10
27	16	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	59	41
2	58	42
3	59	41
4	59	41
5	60	40
6	61	39
7	61	39
8	62	38
9	62	38
10	62	38
11	63	37
12	63	37
13	64	36
14	64	36
15	64	36
16	64	36
17	64	36
18	65	35
19	65	35
20	65	35
21	64	36
22	64	36
23	64	36
24	64	36
25	64	36
26	64	36
27	64	36
28	64	36
29	65	35
30	65	35

	Rain chance (%)
1	14
2	13
3	13
4	13
5	12
6	12
7	12
8	11
9	11
10	11
11	10
12	10
13	10
14	9
15	9
16	9
17	8
18	8
19	8
20	7
21	7
22	7
23	7
24	7
25	7
26	7
27	7
28	7
29	8
30	8

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	15	9
15	15	9
16	15	9
17	15	9
18	15	9
19	15	10
20	15	10
21	15	10
22	15	10
23	15	10
24	15	10
25	16	10
26	16	10
27	16	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	59	41
2	58	42
3	59	41
4	59	41
5	60	40
6	61	39
7	61	39
8	62	38
9	62	38
10	62	38
11	63	37
12	63	37
13	64	36
14	64	36
15	64	36
16	64	36
17	64	36
18	65	35
19	65	35
20	65	35
21	64	36
22	64	36
23	64	36
24	64	36
25	64	36
26	64	36
27	64	36
28	64	36
29	65	35
30	65	35

	Rain chance (%)
1	14
2	13
3	13
4	13
5	12
6	12
7	12
8	11
9	11
10	11
11	10
12	10
13	10
14	9
15	9
16	9
17	8
18	8
19	8
20	7
21	7
22	7
23	7
24	7
25	7
26	7
27	7
28	7
29	8
30	8

	Dry (%)	Comfortable (%)
1	99	1
2	99	1
3	99	1
4	99	1
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0