Tocopilla weather in September

In September, Tocopilla sees average daytime highs of 15°C and overnight lows near 14°C, with 2 mm of rain across 0.2 wet days and about 11.9 hours of daylight. It is the 12th-warmest and 11th-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 60% of the time in September, and the air most often feels comfortable.

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 Tocopilla's 2nd-clearest and 5th-windiest month. For the whole year in context, see Tocopilla's year-round climate.

Daytime high
15°
12th warmest
Overnight low
14°
2nd coldest
Rainfall
2 mm
0.2 wet days
Daylight
11 h 54 min
7:39 AM – 7:31 PM
Cloud cover
35%
2nd clearest
Wind
11 km/h
5th windiest
Solar energy
6.59 kWh/m²
Travel score
6.1
out of 10

Tocopilla is city in Chile.

Air quality
Moderate
PM2.5 13.9 µg/m³ · 2019
Density
3,195/km²
people per km²
Founded
1843

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 Tocopilla reaches about 15°C in the afternoon and slips back to 14°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 17°C. Set against its neighbours, September runs on par with August and on par with October.

10°13°15°18°20°151015202530
Avg high (°C)Avg low (°C)
11514
21514
31514
41514
51514
61514
71514
81514
91514
101514
111514
121514
131514
141514
151514
161514
171514
181514
191514
201514
211514
221514
231514
241514
251514
261514
271514
281514
291514
301514

Tocopilla weather by month

How September compares with the rest of the year at a glance. September is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 18°30.413.27.8
Feb20° / 19°30.712.88.0
Mar19° / 18°30.412.27.9
Apr18° / 17°30.611.57.5
May17° / 16°61.9116.9
Jun16° / 15°92.510.76.2
Jul16° / 14°7210.86.0
Aug15° / 14°40.511.26.0
Sep15° / 14°20.211.96.1
Oct15° / 14°10.112.56.1
Nov16° / 15°20.113.16.6
Dec18° / 17°20.213.37.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 18%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17822
27921
37921
47921
58020
68119
78119
88119
98218
108218
118218
128218
138218
148218
158218
168218
178218
188218
198218
208218
218218
228218
238218
248218
258218
268218
278218
288416
298416
308416

Chance of precipitation in September

Any precipitation

Tocopilla gets around 2 mm of rain over 0.2 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 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
180
190
200
210
220
230
240
250
260
270
280
290
300

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
139592
239601
338611
438611
539601
639601
739601
839601
939610
1039610
1139610
1239610
1339610
1439610
1538620
1638620
1738611
1837621
1936631
2036631
2135641
2235641
2334651
2434651
2534651
2633661
2732680
2832680
2931690
3030700

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

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 7:54 AM to 7:25 AM, and sunset from 7:27 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:547:27
211.67:537:27
311.67:527:28
411.67:517:28
511.67:507:28
611.77:497:29
711.77:487:29
811.77:477:29
911.77:467:29
1011.77:457:30
1111.87:447:30
1211.87:437:30
1311.87:427:31
1411.87:417:31
1511.97:407:31
1611.97:397:31
1711.97:387:32
1811.97:377:32
1911.97:367:32
2012.07:357:32
2112.07:347:33
2212.07:337:33
2312.07:327:33
2412.07:317:34
2512.17:307:34
2612.17:297:34
2712.17:287:35
2812.17:277:35
2912.27:267:35
3012.27:257:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.59 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 8.45 kWh/m² in December across the year — September's 6.59 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.1Intense
36.1Intense
46.1Intense
56.2Intense
66.2Intense
76.3Intense
86.3Intense
96.3Intense
106.4Intense
116.4Intense
126.4Intense
136.5Intense
146.5Intense
156.6Intense
166.6Intense
176.6Intense
186.7Intense
196.7Intense
206.8Intense
216.8Intense
226.8Intense
236.9Intense
246.9Intense
257.0Intense
267.0Intense
277.0Intense
287.1Intense
297.1Intense
307.1Intense
Planning a trip in September

Is September a good time to visit Tocopilla?

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

6.1
Sightseeing
9th-best month of the year
0.2
Beach & pool
12th-best month of the year

September is a reasonable time to visit Tocopilla for sightseeing.

What to pack for Tocopilla in September

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

In September, Tocopilla sees daytime highs around 15°C and nights near 14°C. Pack sun protection. Worth having: a warm layer.

sun protectiona warm layer

Sea temperature near Tocopilla in September

The nearest coast averages about 16°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 19 km away) is warmest in February at about 22°C and coldest in August near 16°C.

It's comfortable for a long swim from Dec 11 to Apr 10 — about 4 months when the water holds above 20°C.

14°16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar21Refreshing
Apr20Cool
May19Cool
Jun18Cool
Jul17Cool
Aug16Cool
Sep16Cool
Oct17Cool
Nov19Cool
Dec20Refreshing

UV index in Tocopilla in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tocopilla peaks around January 14 at about 16 (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 14UV 16Jul 10UV 6
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar14Extreme
Apr10Very high
May8Very high
Jun7High
Jul6High
Aug9Very high
Sep12Extreme
Oct14Extreme
Nov14Extreme
Dec15Extreme

Air quality in Tocopilla 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 Tocopilla is worst in May — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 10 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Tocopilla's WHO annual average of 13.9 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 2419 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar10Good
Apr13Moderate
May19Moderate
Jun19Moderate
Jul19Moderate
Aug17Moderate
Sep14Moderate
Oct12Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Tocopilla?

Tocopilla sits at 22.1°S, 70.2°W, 37 m above sea level, in Chile. The nearest listed city is Calama, 137 km away.

UyuniArica

Topography around Tocopilla

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

Within 3 km, the terrain around Tocopilla has large variations in elevation — a maximum elevation change of 908 m around an average of 193 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,970 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,278 m.

The land around Tocopilla is covered by bare terrain (54%) and water (37%) within 3 km, bare terrain (52%) and water (47%) within 16 km, and bare terrain (67%) and water (33%) within 80 km.

3 km
908 m
16 km
1,970 m
80 km
2,278 m
artificial surfacesbare terrainwater
September weather nearby: Calama 137 km · Antofagasta 175 km · Alto Hospicio 203 km · Pozo Almonte 209 km · Iquique 209 km · San Pedro de Atacama 224 km · Uyuni 394 km · Arica 402 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 Tocopilla (-22.092°, -70.1979°, elevation 37 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).