San Antonio weather in October

In October, San Antonio sees average daytime highs of 29°C and overnight lows near 19°C, with 198 mm of rain across 12 wet days and about 12.6 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 38% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of October to 13 hours by month's end. Set against the rest of the year, October is San Antonio's 11th-clearest and 3rd-windiest month. For the whole year in context, see San Antonio's year-round climate.

Daytime high
29°
6th warmest
Overnight low
19°
7th coldest
Rainfall
198 mm
12 wet days
Daylight
12 h 36 min
6:17 AM – 6:53 PM
Cloud cover
54%
11th clearest
Wind
14 km/h
3rd windiest
Solar energy
5.58 kWh/m²
Travel score
5.4
out of 10

San Antonio is city in the Central Department, Paraguay.

Density
2,424/km²
people per km²
Founded
1903

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical October day in San Antonio reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 35°C. Set against its neighbours, October runs about 2°C warmer than September and about 1°C cooler than November.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42818
52818
62818
72818
82818
92919
102919
112919
122919
132919
142919
152919
162919
172919
182919
192919
202919
212919
222919
232919
242920
252920
262920
272920
282920
292920
302920
312920

How October really feels in San Antonio

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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Antonio weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°12212.413.43.5
Feb32° / 23°14712.312.93.8
Mar31° / 21°12110.812.24.6
Apr28° / 19°1559.411.46.2
May24° / 16°1428.910.87.1
Jun23° / 14°1128.610.47.0
Jul23° / 13°797.710.67.4
Aug25° / 14°686.811.17.7
Sep27° / 16°1138.711.86.9
Oct29° / 19°1981212.65.4
Nov30° / 20°18811.113.24.9
Dec32° / 22°16512.613.63.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35347
45347
55347
65248
75248
85248
95248
105248
115248
125248
135248
145149
155149
165149
175050
185050
195050
205050
215050
225149
235149
245149
255347
265347
275347
285347
295347
305347
315347

Chance of precipitation in October

Any precipitation

San Antonio gets around 198 mm of rain over 12 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 39% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
337
437
537
638
738
838
939
1039
1139
1240
1340
1440
1540
1641
1741
1841
1941
2040
2140
2240
2339
2439
2539
2639
2739
2838
2938
3038
3138

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1202126285
2192126295
3182026306
4172026316
5161926327
6151825347
7141825358
8141825368
9131724379
10121724389
111216233910
121116233911
131016234011
14915224112
15915224213
16815224213
17814224214
18714224215
19714224215
20714224216
21613224117
22613214118
23713214019
24713213919
25714213820
26714213821
27714213721
28714203622
29714203523
30714203523
31714203424

Wind in October

Winds average 14 km/h in October.

Across October, daily wind ranges from about 13 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
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in October

DaylightNight

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

Days grow by about 48 minutes over October. Sunrise moves from 6:32 AM to 6:05 AM, and sunset from 6:46 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:326:46
212.36:316:47
312.36:306:47
412.36:296:48
512.36:286:48
612.46:276:49
712.46:266:49
812.46:256:49
912.46:246:50
1012.56:236:50
1112.56:226:51
1212.56:216:51
1312.56:206:52
1412.66:196:52
1512.66:186:53
1612.66:176:53
1712.66:166:54
1812.76:156:55
1912.76:146:55
2012.76:136:56
2112.76:136:56
2212.86:126:57
2312.86:116:57
2412.86:106:58
2512.86:096:59
2612.86:096:59
2712.96:087:00
2812.96:077:00
2912.96:067:01
3012.96:067:02
3113.06:057:02

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.58 kWh/m².

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 6.74 kWh/m² in January across the year — October's 5.58 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.2Bright
35.2Bright
45.2Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.4Bright
105.4Bright
115.4Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
296.0Bright
306.0Bright
316.0Intense
Planning a trip in October

Is October a good time to visit San Antonio?

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

5.4
Sightseeing
7th-best month of the year
6.7
Beach & pool
5th-best month of the year

October is a reasonable time to visit San Antonio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Antonio in October

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

In October, San Antonio sees daytime highs around 29°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in San Antonio in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — 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 Antonio peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateVery highExtremeJan 18UV 14Jun 23UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar11Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5Moderate
Aug5Moderate
Sep8Very high
Oct7Very high
Nov12Extreme
Dec13Extreme

Air quality in San Antonio 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 San Antonio is worst in September — around 33 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 933 µg/m³Dec 1312 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar18Moderate
Apr13Moderate
May13Moderate
Jun14Moderate
Jul17Moderate
Aug32Moderate
Sep33Moderate
Oct21Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is San Antonio?

San Antonio sits at 25.4°S, 57.5°W, 123 m above sea level, in Paraguay. The nearest listed city is Nemby, 3.0 km away.

Topography around San Antonio

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

Within 3 km, the terrain around San Antonio has only modest variations in elevation — a maximum elevation change of 119 m around an average of 105 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 155 m; within 80 km, significant variations in elevation — a maximum elevation change of 529 m.

The land around San Antonio is covered by trees (59%) and artificial surfaces (26%) within 3 km, trees (56%), grassland (20%) and artificial surfaces (20%) within 16 km, and grassland (51%) and trees (42%) within 80 km.

3 km
119 m
16 km
155 m
80 km
529 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Nemby 3.0 km · Villa Elisa 8.0 km · Fernando de la Mora 10 km · San Lorenzo 10 km · Lambaré 10 km · Capiatá 13 km · Asuncion 18 km · Itauguá 20 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 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 Antonio (-25.4213°, -57.5472°, elevation 123 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).