5-day weather forecast Buenos Aires 18-05-2026
Weather forecast Buenos Aires Monday, May 18 18.05.2026: sunny, temperature from 8 °C to 15 °C.
No precipitation expected. Wind up to 3.81 m/s (gusts 6.33 m/s). Air humidity 41–69%, atmospheric pressure 767–770 mm Hg, UV index up to 3.2.
Sunrise 07:43
Sunset 17:57
Sunset 17:57
Waxing Crescent2% illuminated
Moonrise 09:59 · Moonset 19:31
Moonrise 09:59 · Moonset 19:31
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 10 °C | 0% | 0% | 60% | 770 mm Hg | SW 225° 2.81 (4.53) m/s | 0 |
| 01:00 | Clear | 10 °C | 0% | 0% | 61% | 770 mm Hg | SW 226° 2.81 (4.56) m/s | 0 |
| 02:00 | Clear | 9 °C | 0% | 0% | 62% | 770 mm Hg | SW 228° 2.89 (4.67) m/s | 0 |
| 03:00 | Clear | 9 °C | 0% | 0% | 63% | 770 mm Hg | SW 233° 3 (4.83) m/s | 0 |
| 04:00 | Clear | 9 °C | 0% | 0% | 65% | 770 mm Hg | WSW 240° 3 (4.86) m/s | 0 |
| 05:00 | Clear | 9 °C | 0% | 0% | 66% | 770 mm Hg | WSW 243° 3.11 (5) m/s | 0 |
| 06:00 | Clear | 8 °C | 0% | 0% | 67% | 770 mm Hg | WSW 245° 3 (4.89) m/s | 0 |
| 07:00 | Clear | 8 °C | 0% | 0% | 68% | 770 mm Hg | WSW 246° 3 (4.86) m/s | 0 |
| 08:00 |  Sunny | 8 °C | 0% | 0% | 69% | 770 mm Hg | WSW 245° 3 (4.78) m/s | 0 |
| 09:00 | Sunny | 9 °C | 0% | 0% | 66% | 770 mm Hg | WSW 252° 3 (4.36) m/s | 0.4 |
| 10:00 | Sunny | 10 °C | 0% | 0% | 61% | 770 mm Hg | WSW 258° 2.89 (3.78) m/s | 1.1 |
| 11:00 | Sunny | 11 °C | 0% | 0% | 56% | 770 mm Hg | W 268° 2.81 (3.53) m/s | 2.1 |
| 12:00 | Sunny | 12 °C | 0% | 0% | 51% | 770 mm Hg | W 275° 2.81 (3.47) m/s | 3 |
| 13:00 | Sunny | 13 °C | 0% | 0% | 47% | 770 mm Hg | W 280° 2.69 (3.36) m/s | 3.2 |
| 14:00 | Sunny | 14 °C | 0% | 0% | 44% | 769 mm Hg | WNW 282° 2.61 (3.25) m/s | 2.8 |
| 15:00 | Sunny | 15 °C | 0% | 0% | 42% | 768 mm Hg | W 281° 2.39 (3.08) m/s | 1.9 |
| 16:00 | Sunny | 15 °C | 0% | 0% | 41% | 767 mm Hg | W 281° 2.31 (3.03) m/s | 0.9 |
| 17:00 | Sunny | 15 °C | 0% | 0% | 43% | 767 mm Hg | WNW 283° 2.11 (3) m/s | 0.3 |
| 18:00 | Clear | 14 °C | 0% | 0% | 48% | 767 mm Hg | WNW 289° 2.11 (3.42) m/s | 0 |
| 19:00 | Clear | 13 °C | 0% | 0% | 50% | 767 mm Hg | WNW 299° 2.39 (3.97) m/s | 0 |
| 20:00 | Clear | 13 °C | 0% | 0% | 52% | 767 mm Hg | NW 311° 2.39 (4.03) m/s | 0 |
| 21:00 | Clear | 13 °C | 0% | 0% | 54% | 767 mm Hg | NW 316° 2.61 (4.39) m/s | 0 |
| 22:00 | Clear | 12 °C | 0% | 0% | 56% | 767 mm Hg | NW 316° 3 (5.06) m/s | 0 |
| 23:00 | Clear | 12 °C | 0% | 0% | 60% | 767 mm Hg | NW 313° 3.81 (6.33) m/s | 0 |
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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.