5-day weather forecast Buenos Aires 18-03-2026
Weather forecast Buenos Aires today 18.03.2026: patchy rain possible, temperature from 21 °C to 23 °C.
Precipitation probability 69%. Wind up to 7.39 m/s (gusts 10.14 m/s). Air humidity 74–92%, atmospheric pressure 760–762 mm Hg, UV index up to 9.4.
Sunset 19:11
| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 22 °C | 69% (0.05 mm/hr) | 100% | 92% | 760 mm Hg | SE 139° 6.89 (9.67) m/s | 0 |
| 01:00 | Patchy rain possible | 22 °C | 100% (0.11 mm/hr) | 100% | 92% | 761 mm Hg | SE 139° 6.19 (8.67) m/s | 0 |
| 02:00 | Patchy rain possible | 22 °C | 62% (0.01 mm/hr) | 100% | 92% | 761 mm Hg | SE 138° 6 (8.36) m/s | 0 |
| 03:00 |  Cloudy | 22 °C | 0% | 84% | 92% | 760 mm Hg | SE 132° 5.89 (8.22) m/s | 0 |
| 04:00 |  Overcast | 22 °C | 0% | 90% | 92% | 761 mm Hg | SE 132° 5.81 (7.97) m/s | 0 |
| 05:00 | Patchy rain possible | 21 °C | 87% (0.01 mm/hr) | 100% | 92% | 761 mm Hg | SE 129° 5.81 (7.97) m/s | 0 |
| 06:00 | Patchy rain possible | 21 °C | 87% (0.02 mm/hr) | 100% | 91% | 761 mm Hg | SE 131° 5.69 (7.86) m/s | 0 |
| 07:00 |  Patchy rain possible | 21 °C | 100% (0.07 mm/hr) | 100% | 91% | 761 mm Hg | SE 137° 5.5 (7.53) m/s | 0 |
| 08:00 | Patchy rain possible | 21 °C | 100% (0.14 mm/hr) | 100% | 91% | 761 mm Hg | SE 144° 5.5 (7.39) m/s | 0.5 |
| 09:00 | Patchy rain possible | 21 °C | 100% (0.1 mm/hr) | 98% | 90% | 762 mm Hg | SSE 147° 5.5 (7.36) m/s | 1.8 |
| 10:00 | Patchy rain possible | 21 °C | 66% (0.03 mm/hr) | 99% | 87% | 762 mm Hg | SE 138° 6 (7.86) m/s | 3.7 |
| 11:00 | Patchy rain possible | 22 °C | 64% (0.02 mm/hr) | 99% | 84% | 762 mm Hg | SE 128° 6.5 (8.25) m/s | 6.2 |
| 12:00 | Patchy rain possible | 23 °C | 100% (0.06 mm/hr) | 87% | 79% | 762 mm Hg | ESE 118° 6.89 (8.5) m/s | 8.3 |
| 13:00 | Patchy rain possible | 23 °C | 100% (0.05 mm/hr) | 88% | 77% | 762 mm Hg | ESE 109° 7.11 (8.61) m/s | 9.4 |
| 14:00 | Patchy rain possible | 23 °C | 61% (0.03 mm/hr) | 83% | 77% | 761 mm Hg | ESE 105° 7.11 (8.83) m/s | 8.4 |
| 15:00 |  Cloudy | 23 °C | 0% | 79% | 77% | 761 mm Hg | ESE 102° 7.39 (9.33) m/s | 6.3 |
| 16:00 | Cloudy | 23 °C | 0% | 66% | 75% | 761 mm Hg | ESE 102° 7.31 (8.81) m/s | 3.7 |
| 17:00 |  Partly cloudy | 23 °C | 0% | 54% | 74% | 761 mm Hg | E 100° 7.19 (8.81) m/s | 1.6 |
| 18:00 | Partly cloudy | 22 °C | 0% | 46% | 76% | 761 mm Hg | E 101° 7.39 (9.31) m/s | 0.4 |
| 19:00 | Partly cloudy | 22 °C | 0% | 54% | 78% | 761 mm Hg | ESE 103° 7 (9.36) m/s | 0 |
| 20:00 | Cloudy | 21 °C | 0% | 74% | 80% | 761 mm Hg | ESE 107° 7.11 (9.72) m/s | 0 |
| 21:00 |  Partly cloudy | 21 °C | 0% | 56% | 80% | 761 mm Hg | ESE 106° 7.31 (10) m/s | 0 |
| 22:00 | Cloudy | 21 °C | 0% | 69% | 82% | 761 mm Hg | E 100° 7.31 (10.14) m/s | 0 |
| 23:00 | Partly cloudy | 21 °C | 0% | 57% | 84% | 761 mm Hg | E 94° 6.89 (9.69) m/s | 0 |
Frequently asked questions about the weather in Buenos Aires
What is the weather in Buenos Aires today?
Today in Buenos Aires the temperature ranges from 21 °C to 23 °C, wind up to 7.39 m/s. Check the detailed hourly forecast above for more information.
Will it rain in Buenos Aires this week?
The precipitation probability in Buenos Aires today is 69%. View the full multi-day forecast above to see the rain chances for each upcoming day.
What is the wind speed in Buenos Aires today?
The wind speed in Buenos Aires today reaches up to 7.39 m/s with gusts up to 10.14 m/s. Check the detailed wind chart above for hourly wind data.
What is the humidity in Buenos Aires today?
The air humidity in Buenos Aires today ranges from 74% to 92%. View the humidity chart above for hourly details.
What is the UV index in Buenos Aires today?
The UV index in Buenos Aires today reaches up to 9.4. Check the UV index chart above for hourly values throughout the day.
What is the atmospheric pressure in Buenos Aires today?
The atmospheric pressure in Buenos Aires today ranges from 760 to 762 mm Hg. View the pressure chart above for hourly readings.
What is the cloud cover in Buenos Aires today?
Cloud cover in Buenos Aires today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.