May weather forecast
Brazil

May brings a further cooling trend to Brazil as the country delves deeper into the autumn season. The northeastern regions and the Amazon Basin still manage to hold temperatures above 30°C (86°F), but the heat is noticeably milder compared to the summer months.

The coastal cities, such as Rio de Janeiro, experience a further reduction in temperatures, typically ranging from 22.8°C (73°F) to 27.2°C (81°F). The sea temperatures along the north-central coast start to cool more substantially but remain enjoyable for beachgoers and swimmers.

In southern Brazil, the shift to a cooler climate becomes more evident. The highlands and mountains display an even more significant decrease in temperatures compared to April. This cooling trend signals the approach of the winter season, which becomes more apparent in the upcoming month of June.

May is typically less rainy across Brazil. While the Amazon region still receives a substantial amount of rainfall, it is less intense than in the earlier months. In contrast, the northeastern regions continue their arid conditions, further reinforcing the transition from the humid summer to a drier autumn season. The reduced humidity and cooler temperatures make May a pleasant time to explore Brazil's vast landscapes and rich biodiversity.

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• São Paulo - May »
  On the first day of May in São Paulo, sunrise is at 06:27 and sunset at 17:39. In São Paulo, in May, during 6 rainfall days, 71mm (2.8") of precipitation is typically accumulated.
• Rio de Janeiro - May »
  On the first day of May in Rio de Janeiro sunrise is at 06:12 and sunset at 17:26. In Rio de Janeiro, Brazil, in May, it is raining for 12.8 days, with typically 51mm (2.01") of accumulated precipitation.
• Brasília - May »
  On the last day of the month, sunrise is at 06:31 and sunset at 17:46 -03. The months with the lowest UV index are February, April through July and December, with an average maximum UV index of 5.
• Salvador - May »
  The most humid month in Salvador, Brazil, is May, with an average relative humidity of 83.1%. With an average relative humidity of 83.1%, May is the most humid month in Salvador.
• Fortaleza - May »
  The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. On the first day of May in Fortaleza sunrise is at 05:31 and sunset at 17:30.
• Belo Horizonte - May »
  In Belo Horizonte during the entire year, the rain falls for 116 days and collects up to 1491mm (58.7") of precipitation. On the last day of the month, in Belo Horizonte, sunrise is at 06:23 and sunset at 17:23 -03.
• Manaus - May »
  On the last day of the month, in Manaus sunrise is at 05:59 and sunset at 17:56 -04. The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth.
• Curitiba - May »
  In Curitiba, during May, the rain falls for 7 days and regularly aggregates up to 101mm (3.98") of precipitation. Curitiba, Brazil's weather in May often draws attention due to the notable dip in temperature and longer nights.
• Recife - May »
  In Recife in May, the average water temperature is 28.2°C (82.8°F). Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat.
• Porto Alegre - May »
  The weather in Porto Alegre in May transitions from warm to mild, with an average high temperature of 21.9°C (71.4°F). On the last day of the month, in Porto Alegre, sunrise is at 07:12 and sunset at 17:32 -03.
• Goiânia - May »
  On the first day of May in Goiânia, Brazil, sunrise is at 06:29 and sunset at 17:58. In Goiânia, during the entire year, the rain falls for 116 days and collects up to 1571mm (61.85") of precipitation.
• Guarulhos - May »
  In May, in Guarulhos, Brazil, the rain falls for 7 days. The transition into May in Guarulhos, Brazil, is marked with an average high-temperature of a still moderately hot 23°C (73.4°F), showing an insignificant shift from April's 25°C (77°F).