5-day weather forecast Buenos Aires 21-03-2026

Weather forecast Buenos Aires Saturday 21 March 21.03.2026: patchy rain possible, temperature from 18 °C to 24 °C.

Precipitation probability 60%. Wind up to 7.81 m/s (gusts 11.33 m/s). Air humidity 86–96%, atmospheric pressure 753–760 mm Hg, UV index up to 6.

Sunrise 06:55
Sunset 19:11

Chart

Table

Type of temperature:

°C

°F

← Fri, 20 Mar

Sat, 21 Mar, 2026

Sun, 22 Mar →

Forecast from 18 °C to 24 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	21	21	22	22	22	22	22	22	22	22	22	23	23	24	24	24	23	23	22	20	20	19	18	18
Precipitation (mm/hr)	0.04	0.05	0.11	0.02	0.02	0.08	0.06	0.02	0.02	0.1	0.05	0.19	0.25	0.23	1.13	1.6	0.83	0.2	0.09	0.03	0.01	0.01	0.01	0

Cloud cover

Cloud cover
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	98	100	100	70	72	97	100	100	100	100	100	100	100	98	98	100	100	92	100	95	97	97	92	87

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	4.89	5.31	7.69	7.19	6	4.19	3.39	3.39	3.39	4.69	4.81	5	4.5	4.31	3.81	4.69	5.19	5.5	6.5	7.81	7.11	6.11	5.31	5.11
Wind gust (m/s)	7.08	7.75	11.33	10.78	8.92	6.17	4.97	5	4.94	6.67	6.81	7.03	6.25	6.03	5.5	7.28	7.61	7.89	9.36	11.33	10.33	8.86	6.94	6.69

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	95	96	96	94	94	94	94	94	94	94	94	93	93	91	89	89	91	91	91	92	89	89	88	86

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	755	754	754	753	754	754	754	755	755	755	755	755	755	755	755	755	755	755	756	757	758	759	760	760

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.1	0.6	6	6	6	6	6	6	6	6	6	5	0	0	0	0

← Fri, 20 Mar

Sat, 21 Mar, 2026

Sun, 22 Mar →

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.

Learn more about our methodology →

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