AI-generatedRosario at a glance
- Best time
- Feb – Jun, Aug – Dec
- Warmest month
- Jan · 30°
- Sunshine a year
- 2,620 h
- Rain a year
- 980 mm
- Climate
- Subtropical
- Time zone
- UTC−3
- Elevation
- 38 m
Climate in Rosario
Rosario has a subtropical climate with warm summers and mild winters. January is the warmest month with average highs of 30 °C, while July is the coolest at 16 °C. With around 2,620 hours of sunshine a year, Rosario is sunny; January is the sunniest month with 9.6 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Excellent
Best time to visit: February – June, August – December
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 16°
- Midday, 13:00: about 23°
- Afternoon, 16:00: about 23°
- Evening, 20:00: about 19°
- Night, 23:00: about 16°
06:2319:14
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:07–06:56 · evening 18:41–19:29
- Blue hour
- Morning 05:57–06:07 · evening 19:29–19:39
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.
What is the weather like in Rosario in October?
In October, Rosario is warm: daytime highs average 24 °C, and nights cool down to about 13 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 9 rainy days and 97 mm in total. All in all, October is an excellent month for a holiday in Rosario.
More details for October
- Daylight
- 12 h 51 min06:23 – 19:14
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 2 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Time zone
- UTC−3America/Argentina/Cordoba
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %70 %
- Few rainy daysweight 30 %63 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Sunshine hours in Rosario
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 7.2 of 12.9 hours of daylight in Rosario, 56 % of the day.
Sunshine hours: measured at the weather station 14 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Rosario
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 it, 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.
Rain in Rosario: 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, Rosario has about 9 rainy days with 97 mm of rain in total.
Wind and clouds in Rosario
How breezy and how cloudy Rosario 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 Rosario typically peaks at 18 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 46 % of the sky over Rosario: variable cloud, with about 7.2 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 and humidity in Rosario
How often the day gets hot in Rosario (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, Rosario has about 2 hot days, with an average daytime high of 24 °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
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Rosario
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°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (10+ muggy days)
CoolOctober: nights around 13°. A duvet at night and a jumper for the evening. Muggy on about 2 days (dew point 18 °C or more).
The coolest nights are in July (7°), the warmest in January (20°). Tropical nights of 20 °C and more are the rule in January; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from February to March and from November to December. Nights fall below 8 °C on average in July, so the room should be heated. It is muggy (dew point 18 °C or more) on about 54 days a year, mostly from January to March.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 71 | 30° | 20° | 9.6 h | 8 | 96 |
| FebruaryFeb | 78 | 29° | 19° | 8.5 h | 9 | 119 |
| MarchMar | 86 | 27° | 18° | 7.6 h | 8 | 132 |
| AprilApr | 82 | 23° | 14° | 6.1 h | 8 | 99 |
| MayMay | 85 | 19° | 11° | 5.6 h | 6 | 58 |
| JuneJun | 76 | 16° | 8° | 4.9 h | 4 | 28 |
| JulyJul | 75 | 16° | 7° | 5.6 h | 5 | 34 |
| AugustAug | 90 | 18° | 8° | 6.3 h | 5 | 54 |
| SeptemberSep | 88 | 21° | 10° | 6.5 h | 6 | 57 |
| OctoberOct | 83 | 24° | 13° | 7.2 h | 9 | 97 |
| NovemberNov | 91 | 27° | 16° | 8.9 h | 8 | 111 |
| DecemberDec | 78 | 29° | 19° | 9.3 h | 8 | 97 |
Climate averages 1996–2025, 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
32.95° S, 60.64° W · 38 m · America/Argentina/Cordoba
Best time to visit Rosario
The best time to visit Rosario is from February to June and from August to December. For sightseeing, day trips and hiking, conditions are most comfortable from March to November. The wettest month is March with 132 mm of precipitation.
Rosario through the seasons
How the weather changes over the seasons, with averages for each.
Rosario in spring
Sep – Nov
Excellent
- 21–27 °C by day
- 8 h of sun a day
- 23 rainy days in all
Rosario in summer
Dec – Feb
Good
- 29–30 °C by day
- 9 h of sun a day
- 25 rainy days in all
Rosario in autumn
Mar – May
Excellent
- 19–27 °C by day
- 6 h of sun a day
- 22 rainy days in all
Rosario in winter
Jun – Aug
Excellent
- 16–18 °C by day
- 6 h of sun a day
- 14 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Rosario for you.
Your best months: April, September – October
Based on the climate averages; tap a month to see its details.
Compare two months in Rosario
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
November has the better holiday weather in Rosario: score 91 against 83. In November, days are 3 °C warmer than in October. November has one rainy day fewer. The sun shines 2 hours longer a day in November.
| Month | October | November |
|---|---|---|
| Weather score | 83 | 91better |
| Day high | 24° | 27° |
| Night low | 13° | 16° |
| Sunshine | 7.2 h | 8.9 hbetter |
| Rainy days | 9 | 8better |
| Rainfall | 97 mmbetter | 111 mm |
| Muggy days | 2better | 3 |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – Nov
15–28 °C and not too much rain
Rosario month by month
The typical weather for every month at a glance.
71January30° · 10 h
In January, Rosario is hot: daytime highs average 30 °C, and even at night it stays warm at around 20 °C. With around 10 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 96 mm. On about 17 days the thermometer climbs to 30 °C or more. All in all, January is a good month for a holiday in Rosario.
Rosario in January78February29° · 9 h
In February, Rosario is hot: daytime highs average 29 °C, and nights cool down to about 19 °C. The sun shines for around 9 hours a day. Rain falls on about 9 days, adding up to 119 mm. On about 10 days the thermometer climbs to 30 °C or more. All in all, February is a good month for a holiday in Rosario.
Rosario in February86March27° · 8 h
In March, Rosario is warm: daytime highs average 27 °C, and nights cool down to about 18 °C. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 132 mm. On about 5 days the thermometer climbs to 30 °C or more. All in all, March is an excellent month for a holiday in Rosario.
Rosario in March82April23° · 6 h
In April, Rosario is warm: daytime highs average 23 °C, and nights cool down to about 14 °C. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 99 mm. All in all, April is an excellent month for a holiday in Rosario.
Rosario in April85May19° · 6 h
In May, Rosario is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. Expect around 6 hours of sunshine a day. Rain falls on about 6 days, adding up to 58 mm. All in all, May is an excellent month for a holiday in Rosario.
Rosario in May76June16° · 5 h
In June, Rosario is mild: daytime highs average 16 °C, and nights cool down to about 8 °C. Expect around 5 hours of sunshine a day. Rain is rare: about 4 days bring 28 mm in total. All in all, June is a good month for a holiday in Rosario.
Rosario in June75July16° · 6 h
In July, Rosario is cool: daytime highs average 16 °C, and nights cool down to about 7 °C. Expect around 6 hours of sunshine a day. Rain is rare: about 5 days bring 34 mm in total. All in all, July is a good month for a holiday in Rosario.
Rosario in July90August18° · 6 h
In August, Rosario is mild: daytime highs average 18 °C, and nights cool down to about 8 °C. Expect around 6 hours of sunshine a day. Rain is rare: about 5 days bring 54 mm in total. All in all, August is an excellent month for a holiday in Rosario.
Rosario in August88September21° · 7 h
In September, Rosario is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. The sun shines for around 7 hours a day. Rain falls on about 6 days, adding up to 57 mm. All in all, September is an excellent month for a holiday in Rosario.
Rosario in September83October24° · 7 h
In October, Rosario is warm: daytime highs average 24 °C, and nights cool down to about 13 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 9 rainy days and 97 mm in total. All in all, October is an excellent month for a holiday in Rosario.
Rosario in October91November27° · 9 h
In November, Rosario is warm: daytime highs average 27 °C, and nights cool down to about 16 °C. The sun shines for around 9 hours a day. Rain falls on about 8 days, adding up to 111 mm. On about 6 days the thermometer climbs to 30 °C or more. All in all, November is an excellent month for a holiday in Rosario.
Rosario in November78December29° · 9 h
In December, Rosario is hot: daytime highs average 29 °C, and nights cool down to about 19 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 97 mm. On about 12 days the thermometer climbs to 30 °C or more. All in all, December is a good month for a holiday in Rosario.
Rosario in DecemberRosario compared
Put Rosario side by side with another destination.
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Rosario vs. Buenos Aires
In October the holiday weather in Rosario and Buenos Aires is about equally good (score 83 vs. 83). During the day Buenos Aires is 3 °C cooler than Rosario.
| in October | Rosario | Buenos Aires |
|---|---|---|
| Holiday score | 83 | 83 |
| Daytime high | 24° | 21° |
| Sea | – | 19° |
| Sunshine | 7 h | 7 h |
| Rainy days | 9 | 9 |
| Best time | Feb – Jun, Aug – Dec | Sep – May |
Through the year
Argentina in October: the best places
In October, Rosario ranks 3 of 10 destinations in this country.
- Mendoza23°89
- 2Córdoba24°87
- 3RosarioThis page24°83
- 4Buenos Aires21°19°83
- 5La Plata20°83
- 6Villa General Belgrano22°81
- 7Mar del Plata18°13°75
- 8Bariloche11°49
Planning a trip to Rosario
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Rosario 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.
Rosario has its best school-holiday weather during the summer holidays (score 85) and its weakest during the Christmas holidays (score 75).
- 83
Easter holidays
Mar – Apr
Excellent
- 24 °C by day
- 6.5 h of sun a day
- 8 rainy days a month
Good for: Sightseeing & walks
- 83
May half-term
May – Jun
Excellent
- 18 °C by day
- 5.5 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 85
Summer holidays
Jul – Aug
ExcellentBest holidays
- 17 °C by day
- 6.1 h of sun a day
- 5 rainy days a month
Good for: Sightseeing & walks
- 83
October half-term
Oct
Excellent
- 24 °C by day
- 7.2 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
- 75
Christmas holidays
Dec – Jan
Good
- 30 °C by day
- 9.5 h of sun a day
- 8 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 13 h 50 min
- Distance
- 11,070 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.
Frequently asked questions about Rosario
When is the best time to visit Rosario?
The best time to visit Rosario is from February to June and from August to December. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Rosario?
January is the warmest month, with average highs of 30 °C and nights around 20 °C. July is the coolest month at 16 °C.
When does it rain most in Rosario?
The wettest month is March with 132 mm of precipitation. The driest month is June with 28 mm.
How many hours of sunshine does Rosario get?
Rosario gets around 2,620 hours of sunshine a year. The sunniest month is January with 9.6 hours a day; in June there are 4.9 hours a day.
What time zone is Rosario in?
Rosario uses the time zone America/Argentina/Cordoba, at UTC−3 all year.
How long is the flight from London to Rosario?
A nonstop flight from London to Rosario takes about 13 h 50 min, for a straight-line distance of about 11,070 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Rosario?
Rosario has its best school-holiday weather during the summer holidays (score 85) and its weakest during the Christmas holidays (score 75). Holiday ratings (0–100): Easter holidays 83, May half-term 83, Summer holidays 85, October half-term 83, Christmas holidays 75.
Near Rosario
Other destinations close by.
Places with a climate like Rosario
Destinations whose weather through the year is closest to Rosario's – good alternatives.