Yes

you do need a jacket based on the weather in Mariano Acosta, Buenos Aires Province, Argentina 1 second ago

Why? Because it's pretty chilly!
53°F12°C & Mostly Cloudy

Wind is 3 mph5 km/h from the East, gusting to 7 mph11 km/h
May 25
2am54°F12°C4 mph6 km/h EastPartly Cloudy
3am53°F12°C4 mph6 km/h EastPartly Cloudy
4am53°F12°C4 mph6 km/h EastPartly Cloudy
5am53°F12°C4 mph6 km/h EastPartly Cloudy
6am54°F12°C4 mph6 km/h EastMostly Cloudy
7am55°F13°C4 mph7 km/h EastMostly Cloudy
8am56°F14°C5 mph7 km/h EastCloudy
9am59°F15°C6 mph9 km/h EastMostly Cloudy
10am62°F17°C8 mph13 km/h NortheastDrizzle
11am64°F18°C8 mph14 km/h NortheastMostly Cloudy
12pm65°F18°C9 mph14 km/h NortheastMostly Cloudy
1pm66°F19°C8 mph13 km/h NortheastMostly Cloudy
DateLowHighWindDayNight
May 2453°F12°C66°F19°C7 mph11 km/h from EastMostly CloudyThunderstorms
May 2561°F16°C68°F20°C5 mph9 km/h from NortheastThunderstormsThunderstorms
May 2649°F9°C64°F18°C16 mph25 km/h from SouthThunderstormsPartly Cloudy
May 2743°F6°C53°F12°C12 mph19 km/h from SouthwestPartly CloudyPartly Cloudy
May 2839°F4°C58°F14°C6 mph9 km/h from SouthwestPartly CloudyMostly Clear
May 2940°F5°C59°F15°C6 mph9 km/h from NorthwestMostly CloudyPartly Cloudy
May 3042°F6°C57°F14°C8 mph13 km/h from SouthwestMostly ClearMostly Clear

No

Low of 61°F16°C, High of 68°F20°C
Wind: 5 mph9 km/h
Precipitation: 77% rain

Support This Page