AI-generatedSan Antonio, Chile at a glance
- Best time
- Jan – Feb
- Warmest month
- Jan · 21°
- Warmest sea
- Feb · 16.1°
- Sunshine a year
- 2,380 h
- Rain a year
- 380 mm
- Climate
- Subtropical
- Time zone
- UTC−3 / UTC−4
- Elevation
- 39 m
Climate in San Antonio, Chile
San Antonio, Chile has a subtropical climate with warm summers and mild winters. January is the warmest month with average highs of 21 °C, while July is the coolest at 15 °C. With around 2,380 hours of sunshine a year, San Antonio, Chile is sunny; January is the sunniest month with 8.5 hours a day.
Holiday weather through the year
Best time to visit San Antonio, Chile
The best time to visit San Antonio, Chile is from January to February. The sea stays too cool for a classic beach holiday: even in February it only reaches 16.1 °C. For sightseeing, day trips and hiking, the weather is pleasant all year round. The wettest month is June with 115 mm of precipitation.
San Antonio, Chile through the seasons
How the weather changes over the seasons, with averages for each.
San Antonio, Chile in spring
Sep – Nov
Poor
- 17–19 °C by day
- Sea 13 °C
- 7.4 h of sun a day
- 6 rainy days in all
San Antonio, Chile in summer
Dec – Feb
Fair
- 20–21 °C by day
- Sea 15 °C
- 8.2 h of sun a day
- 1 rainy day in all
San Antonio, Chile in autumn
Mar – May
Poor
- 17–20 °C by day
- Sea 14 °C
- 5.7 h of sun a day
- 7 rainy days in all
San Antonio, Chile in winter
Jun – Aug
Poor
- 15–16 °C by day
- Sea 13 °C
- 4.7 h of sun a day
- 19 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
All year
15–28 °C and not too much rain
Find your perfect month
Tell us what you like and we rate every month in San Antonio, Chile for you.
Your best months: December – February
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: January – February
Where to go in OctoberSea temperature in October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 9°
- Midday, 13:00: about 17°
- Afternoon, 16:00: about 18°
- Evening, 20:00: about 14°
- Night, 23:00: about 11°
07:0619:58
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:50–07:39 · evening 19:25–20:14
- Blue hour
- Morning 06:41–06:50 · evening 20:14–20:23
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in San Antonio, Chile compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs rise from about 17° at the start of the month to 18° at the end. The sea warms from 12° to 13°. The days get 1.0 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 17° | 18° |
| Night-time low | 7° | 8° |
| Sea | 12° | 13° |
| Daylight | 12.4 h | 13.4 h |
What is the weather like in San Antonio, Chile in October?
In October, San Antonio, Chile is mild: daytime highs average 18 °C, and nights cool down to about 7 °C. The sea averages 12.5 °C – swimming is only for the hardy. The sun shines for around 7.4 hours a day. Rain is rare: about 2 days bring 14 mm in total. All in all, October is not an ideal month for a holiday in San Antonio, Chile.
More details for October
- Daylight
- 12 h 52 min07:06 – 19:58
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 41 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %73 %
- Few rainy daysweight 20 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Compare two months in San Antonio, Chile
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
January has the better holiday weather in San Antonio, Chile: score 50 against 35. In January, days are 3 °C warmer than in October. The sea is 3 °C warmer in January. January has 2 fewer rainy days. The sun shines an hour longer a day in January.
| Month | October | January |
|---|---|---|
| Holiday weather score | 35 | 50better |
| Daytime high | 18° | 21° |
| Night-time low | 7° | 12° |
| Sea | 12.5° | 15.6° |
| Sunshine | 7.4 h | 8.5 hbetter |
| Rainy days | 2 | 0better |
| Rainfall | 14 mm | 2 mmbetter |
Based on the climate averages 1996–2025.
San Antonio, Chile month by month
The typical weather for every month at a glance.
50January21° · Sea 16° · 8.5 h
In January, San Antonio, Chile is warm: daytime highs average 21 °C, and nights cool down to about 12 °C. The sea averages 15.6 °C – swimming is only for the hardy. The sun shines for around 8.5 hours a day. It hardly ever rains. All in all, January is a so-so month for a holiday in San Antonio, Chile – and yet one of the best months here.
San Antonio, Chile in January47February21° · Sea 16° · 7.8 h
In February, San Antonio, Chile is mild: daytime highs average 21 °C, and nights cool down to about 12 °C. The sea averages 16.1 °C – swimming is only for the hardy. The sun shines for around 7.8 hours a day. It hardly ever rains. All in all, February is a so-so month for a holiday in San Antonio, Chile – and yet one of the best months here.
San Antonio, Chile in February40March20° · Sea 16° · 6.8 h
In March, San Antonio, Chile is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. The sea averages 15.5 °C – swimming is only for the hardy. The sun shines for around 6.8 hours a day. It hardly ever rains. All in all, March is a so-so month for a holiday in San Antonio, Chile.
San Antonio, Chile in March30April19° · Sea 14° · 6.0 h
In April, San Antonio, Chile is mild: daytime highs average 19 °C, and nights cool down to about 9 °C. The sea averages 14.0 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. It hardly ever rains. All in all, April is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in April23May17° · Sea 13° · 4.3 h
In May, San Antonio, Chile is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sea averages 13.3 °C – swimming is only for the hardy. Expect around 4.3 hours of sunshine a day. Rain is rare: about 5 days bring 58 mm in total. All in all, May is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in May18June16° · Sea 13° · 4.0 h
In June, San Antonio, Chile is cool: daytime highs average 16 °C, and nights cool down to about 7 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 4.0 hours of sunshine a day. Rain falls on about 8 days, adding up to 115 mm. All in all, June is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in June23July15° · Sea 12° · 4.7 h
In July, San Antonio, Chile is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. The sea averages 12.4 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. Rain falls on about 6 days, adding up to 68 mm. All in all, July is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in July26August16° · Sea 12° · 5.5 h
In August, San Antonio, Chile is mild: daytime highs average 16 °C, and nights cool down to about 6 °C. The sea averages 12.3 °C – swimming is only for the hardy. Expect around 5.5 hours of sunshine a day. Rain falls on about 6 days, adding up to 68 mm. All in all, August is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in August31September17° · Sea 12° · 6.4 h
In September, San Antonio, Chile is mild: daytime highs average 17 °C, and nights cool down to about 7 °C. The sea averages 12.4 °C – swimming is only for the hardy. Expect around 6.4 hours of sunshine a day. Rain is rare: about 4 days bring 29 mm in total. All in all, September is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in September35October18° · Sea 13° · 7.4 h
In October, San Antonio, Chile is mild: daytime highs average 18 °C, and nights cool down to about 7 °C. The sea averages 12.5 °C – swimming is only for the hardy. The sun shines for around 7.4 hours a day. Rain is rare: about 2 days bring 14 mm in total. All in all, October is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in October38November19° · Sea 13° · 8.4 h
In November, San Antonio, Chile is mild: daytime highs average 19 °C, and nights cool down to about 9 °C. The sea averages 13.3 °C – swimming is only for the hardy. The sun shines for around 8.4 hours a day. It hardly ever rains. All in all, November is not an ideal month for a holiday in San Antonio, Chile.
San Antonio, Chile in November44December20° · Sea 15° · 8.4 h
In December, San Antonio, Chile is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. The sea averages 14.5 °C – swimming is only for the hardy. The sun shines for around 8.4 hours a day. It hardly ever rains. All in all, December is a so-so month for a holiday in San Antonio, Chile.
San Antonio, Chile in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in San Antonio, Chile
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 7°. The room should be heated.
The coolest nights are in July (6°), the warmest in January (12°). Nights fall below 8 °C on average from June to October, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 50 | 21° | 12° | 15.6° | 8.5 h | 0 | 2 |
| FebruaryFeb | 47 | 21° | 12° | 16.1° | 7.8 h | 0 | 1 |
| MarchMar | 40 | 20° | 11° | 15.5° | 6.8 h | 1 | 4 |
| AprilApr | 30 | 19° | 9° | 14.0° | 6.0 h | 2 | 14 |
| MayMay | 23 | 17° | 8° | 13.3° | 4.3 h | 5 | 58 |
| JuneJun | 18 | 16° | 7° | 13.0° | 4.0 h | 8 | 115 |
| JulyJul | 23 | 15° | 6° | 12.4° | 4.7 h | 6 | 68 |
| AugustAug | 26 | 16° | 6° | 12.3° | 5.5 h | 6 | 68 |
| SeptemberSep | 31 | 17° | 7° | 12.4° | 6.4 h | 4 | 29 |
| OctoberOct | 35 | 18° | 7° | 12.5° | 7.4 h | 2 | 14 |
| NovemberNov | 38 | 19° | 9° | 13.3° | 8.4 h | 1 | 4 |
| DecemberDec | 44 | 20° | 11° | 14.5° | 8.4 h | 0 | 2 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
33.59° S, 71.61° W · 39 m · America/Santiago
Sea temperature
Sea temperature in San Antonio, Chile
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 11.8 – 13.4 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in San Antonio, Chile ranges from 12.3 °C in August to 16.1 °C in February. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in February, while the air already peaks in January. The sea temperature varies from year to year: in February, eight out of ten years were between 14.4 and 17.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 15.6° | 14.6° | 16.8° | cold |
| FebruaryFeb | 16.1° | 14.4° | 17.2° | cold |
| MarchMar | 15.5° | 13.8° | 16.9° | cold |
| AprilApr | 14.0° | 12.7° | 16.0° | cold |
| MayMay | 13.3° | 12.6° | 14.5° | cold |
| JuneJun | 13.0° | 12.2° | 14.0° | cold |
| JulyJul | 12.4° | 11.8° | 13.2° | cold |
| AugustAug | 12.3° | 11.7° | 13.1° | cold |
| SeptemberSep | 12.4° | 11.7° | 13.1° | cold |
| OctoberOct | 12.5° | 11.8° | 13.4° | cold |
| NovemberNov | 13.3° | 12.4° | 14.1° | cold |
| DecemberDec | 14.5° | 13.5° | 15.6° | cold |
Sunshine
Sunshine hours in San Antonio, Chile
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.4 of 12.9 hours of daylight in San Antonio, Chile, 57 % of the daylight hours.
Sunshine hours: measured at the weather station 7 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in San Antonio, Chile: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, San Antonio, Chile has about 2 rainy days with 14 mm of rain in total.
UV index
UV index in San Antonio, Chile
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 9 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in December (UV 11).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 20 min
- Light brown skin
- about 25 min
- Olive skin
- about 35 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in San Antonio, Chile
How breezy and how cloudy San Antonio, Chile is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in San Antonio, Chile typically peaks at 23 km/h during the day: Beaufort 4, moderate breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: all year except May.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 41 % of the sky over San Antonio, Chile: mostly sunny, with about 7.4 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Planning a trip to San Antonio, Chile
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
San Antonio, Chile in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
San Antonio, Chile has its best school-holiday weather during the Christmas holidays (score 47) and its weakest during May half-term (score 22).
- 33
Easter holidays
Mar – Apr
Poor
- 19 °C by day
- Sea 14 °C
- 6.2 h of sun a day
- 2 rainy days a month
Good for: Sightseeing & walks
- 22
May half-term
May – Jun
Poor
- 17 °C by day
- Sea 13 °C
- 4.2 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 25
Summer holidays
Jul – Aug
Poor
- 16 °C by day
- Sea 12 °C
- 5.2 h of sun a day
- 6 rainy days a month
Good for: Sightseeing & walks
- 35
October half-term
Oct
Poor
- 18 °C by day
- Sea 13 °C
- 7.4 h of sun a day
- 2 rainy days a month
Good for: Sightseeing & walks
- 47
Christmas holidays
Dec – Jan
FairBest holidays
- 21 °C by day
- Sea 15 °C
- 8.5 h of sun a day
- 0 rainy days a month
Good for: Sightseeing & walks
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 14 h 35 min
- Distance
- 11,720 km
- Time zone
- UTC−3
- Jet lag
- About 3 days (4 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Chile
- Currency
- Chilean Peso (CLP)
- Language
- Spanish
- Sockets
- Type C, L · 220 V
- Traffic
- Drives on the right
- Dialling code
- +56
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
San Antonio, Chile compared
Put San Antonio, Chile side by side with another destination.
San Antonio vs Valparaíso
In October the holiday weather in San Antonio and Valparaíso is about equally good (score 35 vs 37). During the day Valparaíso is 1 °C warmer than San Antonio. The sea is about equally warm. Valparaíso gets one more hour of sunshine a day.
| in October | San Antonio | Valparaíso |
|---|---|---|
| Holiday weather score | 35 | 37 |
| Daytime high | 18° | 19° |
| Sea | 13° | 13° |
| Sunshine | 7 h | 8 h |
| Rainy days | 2 | 2 |
| Best time | Jan – Feb | Sep – May |
Through the year
Best places in the country
Chile in October: the best places
In October, San Antonio ranks 23 of 25 destinations in this country.
- San Pedro de Atacama25°100
- 2Calama25°100
- 3Antofagasta18°16°98
- 4Iquique25°18°97
- 5Valparaíso19°13°95
- 6Viña del Mar19°13°95
- 7Coquimbo18°14°92
- 8La Serena18°14°92
- 23San AntonioThis page18°13°35
Places nearby
Near San Antonio, Chile
Other destinations close by.
Places with a similar climate
Places with a climate like San Antonio, Chile
Destinations whose weather through the year is closest to San Antonio, Chile's – good alternatives.
Frequently asked questions about San Antonio, Chile
When is the best time to visit San Antonio, Chile?
The best time to visit San Antonio, Chile is from January to February. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in San Antonio, Chile?
The sea temperature in San Antonio, Chile ranges from 12.3 °C in August to 16.1 °C in February. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in San Antonio, Chile in October?
Only if you don't mind cold water: in October the sea averages just 12.5 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in San Antonio, Chile?
January is the warmest month, with average highs of 21 °C and nights around 12 °C. July is the coolest month at 15 °C.
When does it rain most in San Antonio, Chile?
The wettest month is June with 115 mm of precipitation. The driest month is February with 1 mm.
How many hours of sunshine does San Antonio, Chile get?
San Antonio, Chile gets around 2,380 hours of sunshine a year. The sunniest month is January with 8.5 hours a day; in June there are 4.0 hours a day.
What time zone is San Antonio, Chile in?
San Antonio, Chile is on UTC−3 in January and UTC−4 in July.
How long is the flight from London to San Antonio, Chile?
A nonstop flight from London to San Antonio, Chile takes about 14 h 35 min, for a straight-line distance of about 11,720 km. Most routes need a change of planes, which adds time.
Which school holidays are best for San Antonio, Chile?
San Antonio, Chile has its best school-holiday weather during the Christmas holidays (score 47) and its weakest during May half-term (score 22). Holiday ratings (0–100): Easter holidays 33, May half-term 22, summer holidays 25, October half-term 35, Christmas holidays 47.