Tristán Suárez weather in October

In October, Tristán Suárez sees average daytime highs of 21°C and overnight lows near 11°C, with 106 mm of rain across 9.4 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 22°C by the end. The sky is clear or mostly clear about 35% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 24 min by month's end. Set against the rest of the year, October is Tristán Suárez's 9th-clearest and 2nd-windiest month. For the whole year in context, see Tristán Suárez's year-round climate.

Daytime high
21°
7th warmest
Overnight low
11°
6th coldest
Rainfall
106 mm
9.4 wet days
Daylight
12 h 54 min
6:12 AM – 7:06 PM
Cloud cover
56%
9th clearest
Wind
14 km/h
2nd windiest
Solar energy
5.54 kWh/m²
Travel score
6.7
out of 10

Tristán Suárez is human settlement in Argentina.

Founded
1885

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 22°C by the end.

A typical October day in Tristán Suárez reaches about 21°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 26°C. Set against its neighbours, October runs about 3°C warmer than September and about 3°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12010
22010
32010
42010
52010
62010
72011
82011
92111
102111
112111
122111
132111
142111
152112
162112
172212
182212
192212
202212
212212
222212
232212
242212
252212
262212
272212
282212
292212
302312
312312

Tristán Suárez weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°897.914.16.0
Feb28° / 17°898.613.36.6
Mar26° / 16°817.212.37.4
Apr22° / 12°908.211.17.1
May18° / 596.110.26.4
Jun15° / 605.69.75.1
Jul14° / 596.19.94.6
Aug16° / 64610.75.8
Sep18° / 72711.86.4
Oct21° / 11°1069.412.96.7
Nov24° / 14°948.413.87.2
Dec28° / 16°868.614.36.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54555
64555
74555
84654
94654
104654
114753
124852
134852
144852
154852
164951
174951
184951
194951
204951
214951
224951
235050
245050
255050
265149
275149
285149
295248
305248
315347

Chance of precipitation in October

Any precipitation

Tristán Suárez gets around 106 mm of rain over 9.4 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
328
428
529
629
729
830
930
1030
1130
1230
1330
1430
1530
1630
1730
1830
1930
2030
2130
2230
2330
2430
2530
2629
2729
2829
2929
3029
3130

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1781840
2771940
3762040
4752050
5742150
6722260
7712261
8692371
9682381
10672481
11662491
12662491
136425101
146425101
156425101
166226111
176226111
186226111
196027121
206027121
216027121
225927131
235927131
245828131
255828131
265828131
275629141
285629141
295629141
305430151
315430151

Wind in October

Winds average 14 km/h in October.

Across October, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over October. Sunrise moves from 6:33 AM to 5:56 AM, and sunset from 6:54 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:336:54
212.46:316:54
312.46:306:55
412.56:296:56
512.56:276:57
612.56:266:58
712.66:246:58
812.66:236:59
912.66:227:00
1012.76:207:01
1112.76:197:02
1212.86:187:03
1312.86:167:04
1412.86:157:04
1512.96:147:05
1612.96:127:06
1712.96:117:07
1813.06:107:08
1913.06:097:09
2013.06:087:10
2113.16:067:11
2213.16:057:11
2313.16:047:12
2413.26:037:13
2513.26:027:14
2613.26:017:15
2713.36:007:16
2813.35:597:17
2913.35:587:18
3013.45:577:19
3113.45:567:20

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.54 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 7.48 kWh/m² in December across the year — October's 5.54 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.1Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
256.0Bright
266.0Intense
276.1Intense
286.1Intense
296.1Intense
306.2Intense
316.2Intense
Planning a trip in October

Is October a good time to visit Tristán Suárez?

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

6.7
Sightseeing
4th-best month of the year
4.2
Beach & pool
7th-best month of the year

October is a reasonable time to visit Tristán Suárez for sightseeing.

What to pack for Tristán Suárez in October

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

In October, Tristán Suárez sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear and sun protection. About 9 days see rain.

rain gearsun protection

Sea temperature near Tristán Suárez in October

The nearest coast averages about 18°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 34 km away) is warmest in January at about 25°C and coldest in July near 13°C.

It's comfortable for a long swim from Nov 9 to Apr 20 — about 5.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar23Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Tristán Suárez in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tristán Suárez peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 14UV 12Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Tristán Suárez in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Tristán Suárez is worst in August — around 17 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1316 µg/m³Dec 129 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar11Good
Apr12Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug17Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Tristán Suárez?

Tristán Suárez sits at 34.9°S, 58.6°W, 12 m above sea level, in Argentina. The nearest listed city is La Unión, 3.0 km away.

Topography around Tristán Suárez

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

Within 3 km, the terrain around Tristán Suárez has only modest variations in elevation — a maximum elevation change of 23 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 53 m; within 80 km, only modest variations in elevation — a maximum elevation change of 70 m.

The land around Tristán Suárez is covered by artificial surfaces (37%), grassland (36%) and trees (22%) within 3 km, grassland (45%) and artificial surfaces (20%) within 16 km, and grassland (35%) and cropland (29%) within 80 km.

3 km
23 m
16 km
53 m
80 km
70 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: La Unión 3.0 km · Ezeiza 6.0 km · Burzaco 17 km · Adrogué 19 km · Pontevedra 20 km · San Vicente 20 km · Lomas de Zamora 21 km · Isidro Casanova 21 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus 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 Tristán Suárez (-34.8898°, -58.5676°, elevation 12 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).