August weather forecast
Brazil

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Weather in August

In August, the winter season persists in Brazil. However, the northeastern regions and the Amazon Basin begin to experience a slight rise in temperatures, with values typically exceeding 30°C (86°F). While the nights continue to be cool, the increasing daytime temperatures hint at the approaching end of the winter season.

The coastal cities, including Rio de Janeiro, remain in a stable temperature range of 22.8°C (73°F) to 27.2°C (81°F). The sea temperatures along the north-central coast begin to warm up subtly, making coastal activities increasingly enjoyable as the month progresses.

In contrast, southern Brazil continues to experience the chill of winter. The highlands and mountainous regions south of the Tropic of Capricorn record low temperatures, with frosts and occasional snowfall. Though not as cold as July, August still presents a predominantly cold climate in the south.

In terms of precipitation, Brazil sees a transition in August. The Amazon region's rainfall remains steady but less than in the earlier winter months. Meanwhile, the northeastern regions maintain their dry conditions, but the signs of the imminent wet season begin to surface. The cooler temperatures coupled with the gradual increase in rainfall across the country set the stage for the transition from winter to spring in the ensuing month of September.

  • São Paulo - August »
    The month with the least rainfall in São Paulo is August, when the rain falls for 4 days and typically collects 40mm (1.57") of precipitation. With an average relative humidity of 74%, August is the least humid month in São Paulo, Brazil.
  • Rio de Janeiro - August »
    With an average relative humidity of 76%, August is the least humid month in Rio de Janeiro, Brazil. On the first day of August in Rio de Janeiro, sunrise is at 06:26 and sunset at 17:31.
  • Brasília - August »
    In Brasília in August, during 1.9 rainfall days, 2mm (0.08") of precipitation is typically accumulated. On the first day of August in Brasília sunrise is at 06:35 and sunset at 18:00.
  • Salvador - August »
    On the first day of August in Salvador sunrise is at 05:53 and sunset at 17:26. On the first day of August in Salvador, Brazil, sunrise is at 05:53 and sunset at 17:26.
  • Fortaleza - August »
    In Fortaleza, Brazil, in August, during 5 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Fortaleza in August, during 5 rainfall days, 22mm (0.87") of precipitation is typically accumulated.
  • Belo Horizonte - August »
    The month with the least rainfall in Belo Horizonte is August, when the rain falls for 4 days and typically collects 14mm (0.55") of precipitation. The least humid month in Belo Horizonte, Brazil, is August, with an average relative humidity of 64.5%.
  • Manaus - August »
    The month with the least rainfall in Manaus is August, when the rain falls for 6 days and typically collects 47mm (1.85") of precipitation. August and September, with an average relative humidity of 77%, are the least humid months in Manaus, Brazil.
  • Curitiba - August »
    The months with the lowest humidity in Curitiba are January, April and August, with an average relative humidity of 79%. As August sets in Curitiba citizens feel a noticeable change to warmer days that punctuate the city's weather.
  • Recife - August »
    August and September, with an average sea temperature of 26.4°C (79.5°F), are months with the coldest seawater in Recife. As Recife welcomes August, the average high-temperature records at a still moderately hot 27.5°C (81.5°F), marking an insignificant deviation from the prior month.
  • Porto Alegre - August »
    August is the month with the coldest seawater in Porto Alegre, with an average sea temperature of 15.8°C (60.4°F). The month with the coldest seawater in Porto Alegre is August, with an average sea temperature of 15.8°C (60.4°F).
  • Goiânia - August »
    The least humid month in Goiânia is August, with an average relative humidity of 47%. On the first day of August in Goiânia, sunrise is at 06:42 and sunset at 18:04.
  • Guarulhos - August »
    Guarulhos transitions into August recording an average high-temperature of a still pleasant 22°C (71.6°F), closely aligning with the preceding month's temperature. On the last day of August, in Guarulhos, sunrise is at 06:17 and sunset at 17:55 -03.
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