nomadseason

April Weather in Castelo, Brazil

Last updated: August 22, 2025

In Castelo, Brazil, the average temperature in April hovers around 22°C (71°F), offering a pleasant climate for outdoor activities. Temperatures can vary notably, dipping to a minimum of 12°C (54°F) and soaring to a maximum of 32°C (90°F). Expect about 76 mm (3.0 in) of precipitation over approximately 12 days, contributing to an average humidity level of 85%, which adds a touch of warmth to the air.

April Temperature in Castelo

In April, in Castelo, the average temperature is 22°C (71°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 12°C (54°F). This makes Castelo an ideal destination for travelers looking to enjoy mild and pleasant weather.

April Weather in Castelo: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Castelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelo, April typically has an average temperature of 22°C (71°F), with highs reaching up to 32°C (90°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec767574716766646570727173
Data source: Temperature data for Castelo generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Castelo

In Castelo in April, the total precipitation amount is 76 mm (3.0 in), occurring over the course of 12 days.

April Precipitation Trends in Castelo

The chart displays monthly precipitation patterns in Castelo, 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 Castelo, April typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec86176131764624183350114167175
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Castelo

In Castelo in April, humidity is 85%. With an average temperature of 22°C (71°F), this humidity feels like a warm, enveloping blanket that can quickly lead to discomfort, making outdoor activities feel more taxing and sweat-inducing, so travelers should stay hydrated and plan for frequent breaks in shaded or air-conditioned areas.

April Average Humidity in Castelo

This chart illustrates the average monthly humidity levels in Castelo, 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 Castelo is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%85%86%85%82%81%79%75%72%67%69%72%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Castelo

In Castelo in April, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Castelo.

Maximum UV Index Levels in Castelo for April

The chart shows the monthly maximum UV Index (UVI) for Castelo 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 Castelo typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161514129781012141516
Data source: Castelo 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 Castelo Compares to Other Months

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

This table compares monthly weather conditions in Castelo, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)86 mm (3.4 inches)80%extreme
February Weather24°C (75°F)176 mm (6.9 inches)85%extreme
March Weather23°C (74°F)131 mm (5.1 inches)86%extreme
April Weather22°C (71°F)76 mm (3.0 inches)85%extreme
May Weather20°C (68°F)46 mm (1.8 inches)82%very high
June Weather19°C (67°F)24 mm (1.0 inches)81%high
July Weather18°C (64°F)18 mm (0.7 inches)79%very high
August Weather18°C (65°F)33 mm (1.3 inches)75%very high
September Weather21°C (70°F)50 mm (2.0 inches)72%extreme
October Weather22°C (72°F)114 mm (4.5 inches)66%extreme
November Weather22°C (71°F)167 mm (6.6 inches)69%extreme
December Weather23°C (74°F)175 mm (6.9 inches)72%extreme

Compare Castelo's Climate with Cities Worldwide