April Weather in Buenos Aires, Costa Rica

Last updated: August 23, 2025

In Buenos Aires, Costa Rica, the average temperature in April hovers around 20°C (68°F). However, you can expect fluctuations, with minimums dipping to 13°C (57°F) and maximums reaching 28°C (82°F). Be prepared for a touch of rain, as the area receives about 113 mm (4.5 in) of precipitation over 20 days. With an average humidity of 67%, the air can feel a bit muggy, so plan accordingly!

April Temperature in Buenos Aires

In April in Buenos Aires, the average temperature is 20°C (68°F). Maximums can reach 28°C (82°F), while minimums can be as low as 13°C (57°F). It's a great time for travelers seeking comfortable weather to explore the attractions and enjoy outdoor activities.

April Weather in Buenos Aires: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Buenos Aires, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buenos Aires, April typically has an average temperature of 20°C (68°F), with highs reaching up to 28°C (82°F) and lows dropping to around 13°C (57°F).

Data source: Temperature data for Buenos Aires generated using information from the Copernicus Climate Change Service.

April Precipitation in Buenos Aires

In Buenos Aires in April, the total precipitation amount reaches 113 mm (4.5 in) over a span of 20 days.

April Precipitation Trends in Buenos Aires

The chart displays monthly precipitation patterns in Buenos Aires, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Buenos Aires, April typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 20 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Buenos Aires

In Buenos Aires in April humidity is 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.

April Average Humidity in Buenos Aires

This chart illustrates the average monthly humidity levels in Buenos Aires, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Buenos Aires is approximately 67%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Buenos Aires

In Buenos Aires in April, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Buenos Aires.

Maximum UV Index Levels in Buenos Aires for April

The chart shows the monthly maximum UV Index (UVI) for Buenos Aires in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Buenos Aires typically reaches 16, which falls under the extreme exposure category.

Data source: Buenos Aires April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How April Weather in Buenos Aires Compares to Other Months

Weather in Buenos Aires varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Buenos Aires, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Buenos Aires, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	50 mm (2.0 inches)	68%	extreme
February Weather	19°C (66°F)	42 mm (1.6 inches)	68%	extreme
March Weather	19°C (67°F)	35 mm (1.4 inches)	66%	extreme
April Weather	20°C (68°F)	113 mm (4.5 inches)	67%	extreme
May Weather	20°C (68°F)	397 mm (15.6 inches)	69%	extreme
June Weather	20°C (68°F)	288 mm (11.4 inches)	84%	extreme
July Weather	20°C (68°F)	237 mm (9.3 inches)	85%	extreme
August Weather	20°C (67°F)	354 mm (13.9 inches)	82%	extreme
September Weather	19°C (67°F)	299 mm (11.8 inches)	81%	extreme
October Weather	19°C (67°F)	490 mm (19.3 inches)	80%	extreme
November Weather	19°C (67°F)	304 mm (12.0 inches)	80%	extreme
December Weather	19°C (66°F)	86 mm (3.4 inches)	72%	extreme