AI-generatedPuerto San Julián at a glance
- Best time
- Oct – Apr
- Warmest month
- Jan · 23°
- Warmest sea
- Feb · 12.4°
- Sunshine a year
- 2,150 h
- Rain a year
- 221 mm
- Climate
- Maritime
- Time zone
- UTC−3
- Elevation
- 22 m
Climate in Puerto San Julián
Puerto San Julián has a maritime climate with moderate summers and cool, often grey winters. January is the warmest month with average highs of 23 °C, while July is the coolest at 8 °C. With around 2,150 hours of sunshine a year, Puerto San Julián is moderately sunny; January is the sunniest month with 8.3 hours a day.
Holiday weather through the year
Best time to visit Puerto San Julián
The best time to visit Puerto San Julián is from October to April. The sea stays too cool for a classic beach holiday: even in February it only reaches 12.4 °C. For sightseeing, day trips and hiking, conditions are most comfortable from October to April. The wettest month is June with 24 mm of precipitation.
Puerto San Julián through the seasons
How the weather changes over the seasons, with averages for each.
Puerto San Julián in spring
Sep – Nov
Excellent
- 14–20 °C by day
- Sea 7 °C
- 6.6 h of sun a day
- 11 rainy days in all
Puerto San Julián in summer
Dec – Feb
Excellent
- 22–23 °C by day
- Sea 12 °C
- 7.9 h of sun a day
- 14 rainy days in all
Puerto San Julián in autumn
Mar – May
Good
- 12–20 °C by day
- Sea 11 °C
- 5.1 h of sun a day
- 13 rainy days in all
Puerto San Julián in winter
Jun – Aug
Poor
- 8–11 °C by day
- Sea 6 °C
- 4.0 h of sun a day
- 14 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Oct – Apr
15–28 °C and not too much rain
Find your perfect month
Tell us what you like and we rate every month in Puerto San Julián 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
Excellent
Best time to visit: October – April
Where to go in OctoberSea temperature in October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 8°
- Midday, 13:00: about 16°
- Afternoon, 16:00: about 17°
- Evening, 20:00: about 13°
- Night, 23:00: about 9°
06:3320:00
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 06:12–07:15 · evening 19:18–20:21
- Blue hour
- Morning 05:59–06:12 · evening 20:21–20:34
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 Puerto San Julián compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs rise from about 16° at the start of the month to 19° at the end. The sea warms from 6° to 8°. The days get 1.7 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 16° | 19° |
| Night-time low | 4° | 6° |
| Sea | 6° | 8° |
| Daylight | 12.6 h | 14.4 h |
What is the weather like in Puerto San Julián in October?
In October, Puerto San Julián is mild: daytime highs average 17 °C, and nights cool down to about 5 °C. The sea averages 6.8 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. Rain is rare: about 3 days bring 13 mm in total. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, October is an excellent month for a holiday in Puerto San Julián.
More details for October
- Daylight
- 13 h 28 min06:33 – 20:00
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 34 km/haverage daily peakAll months
- Cloud cover
- 51 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Sunscreen
- A jumper for the evenings
- Windproof jacket
Compare two months in Puerto San Julián
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 Puerto San Julián: score 97 against 92. In January, days are 6 °C warmer than in October. The sea is 5 °C warmer in January. January has one more rainy day. The sun shines 2 hours longer a day in January.
| Month | October | January |
|---|---|---|
| Holiday weather score | 92 | 97better |
| Daytime high | 17° | 23° |
| Night-time low | 5° | 10° |
| Sea | 6.8° | 11.7° |
| Sunshine | 6.5 h | 8.3 hbetter |
| Rainy days | 3better | 4 |
| Rainfall | 13 mm | 17 mm |
Based on the climate averages 1996–2025.
Puerto San Julián month by month
The typical weather for every month at a glance.
97January23° · Sea 12° · 8.3 h
In January, Puerto San Julián is warm: daytime highs average 23 °C, and nights cool down to about 10 °C. The sea averages 11.7 °C – swimming is only for the hardy. The sun shines for around 8.3 hours a day. Rain is rare: about 4 days bring 17 mm in total. It is often windy: on a typical day the wind peaks at around 35 km/h. All in all, January is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián in January93February23° · Sea 12° · 7.2 h
In February, Puerto San Julián is warm: daytime highs average 23 °C, and nights cool down to about 9 °C. The sea averages 12.4 °C – swimming is only for the hardy. The sun shines for around 7.2 hours a day. Rain is rare: about 5 days bring 22 mm in total. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, February is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián in February89March20° · Sea 12° · 6.0 h
In March, Puerto San Julián is mild: daytime highs average 20 °C, and nights cool down to about 8 °C. The sea averages 11.9 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Rain is rare: about 5 days bring 21 mm in total. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, March is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián in March84April17° · Sea 11° · 5.2 h
In April, Puerto San Julián is mild: daytime highs average 17 °C, and nights cool down to about 5 °C. The sea averages 10.6 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. Rain is rare: about 4 days bring 19 mm in total. It is often windy: on a typical day the wind peaks at around 33 km/h. All in all, April is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián in April54May12° · Sea 9° · 4.2 h
In May, Puerto San Julián is cool: daytime highs average 12 °C, and nights cool down to about 3 °C. The sea averages 9.1 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. Rain is rare: about 4 days bring 19 mm in total. It is often windy: on a typical day the wind peaks at around 32 km/h. All in all, May is a so-so month for a holiday in Puerto San Julián.
Puerto San Julián in May29June8° · Sea 8° · 3.6 h
In June, Puerto San Julián is cold: daytime highs average 8 °C, and nights cool down to about 0 °C. The sea averages 7.5 °C – swimming is only for the hardy. The sun is scarce, with only about 3.6 hours a day. Rain falls on about 5 days, adding up to 24 mm. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, June is not an ideal month for a holiday in Puerto San Julián.
Puerto San Julián in June32July8° · Sea 6° · 3.8 h
In July, Puerto San Julián is cold: daytime highs average 8 °C, and nights cool down to about 0 °C. The sea averages 6.2 °C – swimming is only for the hardy. The sun is scarce, with only about 3.8 hours a day. Rain is rare: about 4 days bring 19 mm in total. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, July is not an ideal month for a holiday in Puerto San Julián.
Puerto San Julián in July49August11° · Sea 6° · 4.5 h
In August, Puerto San Julián is cool: daytime highs average 11 °C, and nights cool down to about 1 °C. The sea averages 5.5 °C – swimming is only for the hardy. Expect around 4.5 hours of sunshine a day. Rain is rare: about 4 days bring 17 mm in total. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, August is a so-so month for a holiday in Puerto San Julián.
Puerto San Julián in August70September14° · Sea 6° · 5.2 h
In September, Puerto San Julián is cool: daytime highs average 14 °C, and nights cool down to about 3 °C. The sea averages 5.7 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. Rain is rare: about 3 days bring 14 mm in total. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, September is a good month for a holiday in Puerto San Julián.
Puerto San Julián in September92October17° · Sea 7° · 6.5 h
In October, Puerto San Julián is mild: daytime highs average 17 °C, and nights cool down to about 5 °C. The sea averages 6.8 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. Rain is rare: about 3 days bring 13 mm in total. It is often windy: on a typical day the wind peaks at around 34 km/h. All in all, October is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián in October96November20° · Sea 8° · 8.0 h
In November, Puerto San Julián is mild: daytime highs average 20 °C, and nights cool down to about 7 °C. The sea averages 8.4 °C – swimming is only for the hardy. The sun shines for around 8.0 hours a day. Rain is rare: about 4 days bring 15 mm in total. It is often windy: on a typical day the wind peaks at around 35 km/h. All in all, November is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián in November95December22° · Sea 10° · 8.2 h
In December, Puerto San Julián is warm: daytime highs average 22 °C, and nights cool down to about 9 °C. The sea averages 10.3 °C – swimming is only for the hardy. The sun shines for around 8.2 hours a day. Rain falls on about 5 days, adding up to 22 mm. It is often windy: on a typical day the wind peaks at around 35 km/h. All in all, December is an excellent month for a holiday in Puerto San Julián.
Puerto San Julián 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 Puerto San Julián
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 5°. The room should be heated.
The coolest nights are in July (0°), the warmest in January (10°). Nights fall below 8 °C on average from April to November, 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 | 97 | 23° | 10° | 11.7° | 8.3 h | 4 | 17 |
| FebruaryFeb | 93 | 23° | 9° | 12.4° | 7.2 h | 5 | 22 |
| MarchMar | 89 | 20° | 8° | 11.9° | 6.0 h | 5 | 21 |
| AprilApr | 84 | 17° | 5° | 10.6° | 5.2 h | 4 | 19 |
| MayMay | 54 | 12° | 3° | 9.1° | 4.2 h | 4 | 19 |
| JuneJun | 29 | 8° | 0° | 7.5° | 3.6 h | 5 | 24 |
| JulyJul | 32 | 8° | 0° | 6.2° | 3.8 h | 4 | 19 |
| AugustAug | 49 | 11° | 1° | 5.5° | 4.5 h | 4 | 17 |
| SeptemberSep | 70 | 14° | 3° | 5.7° | 5.2 h | 3 | 14 |
| OctoberOct | 92 | 17° | 5° | 6.8° | 6.5 h | 3 | 13 |
| NovemberNov | 96 | 20° | 7° | 8.4° | 8.0 h | 4 | 15 |
| DecemberDec | 95 | 22° | 9° | 10.3° | 8.2 h | 5 | 22 |
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
49.31° S, 67.73° W · 22 m · America/Argentina/Rio_Gallegos
Sea temperature
Sea temperature in Puerto San Julián
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 6.3 – 7.4 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Puerto San Julián ranges from 5.5 °C in August to 12.4 °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 11.7 and 13.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 11.7° | 10.9° | 12.9° | cold |
| FebruaryFeb | 12.4° | 11.7° | 13.2° | cold |
| MarchMar | 11.9° | 11.3° | 12.4° | cold |
| AprilApr | 10.6° | 10.0° | 11.1° | cold |
| MayMay | 9.1° | 8.6° | 9.6° | cold |
| JuneJun | 7.5° | 7.0° | 8.1° | cold |
| JulyJul | 6.2° | 5.3° | 6.7° | cold |
| AugustAug | 5.5° | 4.6° | 6.2° | cold |
| SeptemberSep | 5.7° | 5.1° | 6.2° | cold |
| OctoberOct | 6.8° | 6.3° | 7.4° | cold |
| NovemberNov | 8.4° | 7.8° | 9.3° | cold |
| DecemberDec | 10.3° | 9.5° | 11.3° | cold |
Sunshine
Sunshine hours in Puerto San Julián
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 6.5 of 13.5 hours of daylight in Puerto San Julián, 48 % of the daylight hours.
Sunshine hours: measured at the weather station 5 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 Puerto San Julián: 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, Puerto San Julián has about 3 rainy days with 13 mm of rain in total.
UV index
UV index in Puerto San Julián
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in December (UV 8).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 30 min
- Light brown skin
- about 45 min
- Olive skin
- about 60 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 Puerto San Julián
How breezy and how cloudy Puerto San Julián 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 Puerto San Julián typically peaks at 34 km/h during the day: Beaufort 5, fresh 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, and here it is that strong all year.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 51 % of the sky over Puerto San Julián: variable cloud, with about 6.5 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.
Heat & humidity
Heat and humidity in Puerto San Julián
How often the day gets hot in Puerto San Julián (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Puerto San Julián has about 0 hot days, with an average daytime high of 17 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Puerto San Julián
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Puerto San Julián 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.
Puerto San Julián has its best school-holiday weather during the Christmas holidays (score 96) and its weakest during the summer holidays (score 43).
- 86
Easter holidays
Mar – Apr
Excellent
- 18 °C by day
- Sea 11 °C
- 5.4 h of sun a day
- 4 rainy days a month
Good for: Sightseeing & walks
- 49
May half-term
May – Jun
Fair
- 11 °C by day
- Sea 9 °C
- 4.1 h of sun a day
- 5 rainy days a month
- 43
Summer holidays
Jul – Aug
Fair
- 10 °C by day
- Sea 6 °C
- 4.3 h of sun a day
- 4 rainy days a month
- 92
October half-term
Oct
Excellent
- 17 °C by day
- Sea 7 °C
- 6.5 h of sun a day
- 3 rainy days a month
Good for: Sightseeing & walks
- 96
Christmas holidays
Dec – Jan
ExcellentBest holidays
- 23 °C by day
- Sea 11 °C
- 8.3 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 16 h
- Distance
- 12,880 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: Argentina
- Currency
- Argentine Peso (ARS)
- Language
- Spanish
- Sockets
- Type C, I · 220 V
- Dialling code
- +54
- Emergency number
- 911
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
Puerto San Julián compared
Put Puerto San Julián side by side with another destination.
Puerto San Julián vs Río Gallegos
In October Puerto San Julián has the better holiday weather (score 92 vs 78). During the day Río Gallegos is 2 °C cooler than Puerto San Julián. The sea in Río Gallegos is 1 °C cooler.
| in October | Puerto San Julián | Río Gallegos |
|---|---|---|
| Holiday weather score | 92 | 78 |
| Daytime high | 17° | 15° |
| Sea | 7° | 6° |
| Sunshine | 7 h | 7 h |
| Rainy days | 3 | 6 |
| Best time | Oct – Apr | Oct – Mar |
Through the year
Best places in the country
Argentina in October: the best places
In October, Puerto San Julián ranks 5 among the 31 nearest destinations in this country.
- Trelew22°97
- 2Neuquén23°97
- 3Comodoro Rivadavia19°9°96
- 4San Juan28°95
- 5Puerto San JuliánThis page17°7°92
- 6Mendoza24°89
- 7Bahía Blanca23°88
- 8Córdoba27°87
Places nearby
Near Puerto San Julián
Other destinations close by.
Places with a similar climate
Places with a climate like Puerto San Julián
Destinations whose weather through the year is closest to Puerto San Julián's – good alternatives.
Frequently asked questions about Puerto San Julián
When is the best time to visit Puerto San Julián?
The best time to visit Puerto San Julián is from October to April. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Puerto San Julián?
The sea temperature in Puerto San Julián ranges from 5.5 °C in August to 12.4 °C in February. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Puerto San Julián in October?
Only if you don't mind cold water: in October the sea averages just 6.8 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Puerto San Julián?
January is the warmest month, with average highs of 23 °C and nights around 10 °C. July is the coolest month at 8 °C.
When does it rain most in Puerto San Julián?
The wettest month is June with 24 mm of precipitation. The driest month is October with 13 mm.
How many hours of sunshine does Puerto San Julián get?
Puerto San Julián gets around 2,150 hours of sunshine a year. The sunniest month is January with 8.3 hours a day; in June there are 3.6 hours a day.
What time zone is Puerto San Julián in?
Puerto San Julián is on UTC−3 all year.
How long is the flight from London to Puerto San Julián?
A nonstop flight from London to Puerto San Julián takes about 16 h, for a straight-line distance of about 12,880 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Puerto San Julián?
Puerto San Julián has its best school-holiday weather during the Christmas holidays (score 96) and its weakest during the summer holidays (score 43). Holiday ratings (0–100): Easter holidays 86, May half-term 49, summer holidays 43, October half-term 92, Christmas holidays 96.