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Weather forecast for São Luís indicates rain and cloudy skies this week

Por Equipe Editorial CifraNET · 29/06/2026
Weather forecast for São Luís indicates rain and cloudy skies this week
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São Luís will have a week of moderate rain and partly cloudy skies between Monday (29) and Sunday (5). Temperatures vary between minimums of 25°C and maximums of 30°C throughout the period.

The probability of rain remains high every day, with volumes ranging between 4 and 14 millimeters. Ultraviolet indices reach high levels, requiring attention to sun exposure, and winds blow at moderate speed throughout the week.

Temperature for the next few days in São Luís

- Monday, June 29th: Minimum of 25°C and maximum of 30°C.
- Tuesday, June 30th: Minimum of 26°C and maximum of 30°C.
- Wednesday, July 1st: Minimum of 26°C and maximum of 30°C.
- Thursday, July 2nd: Minimum of 26°C and maximum of 30°C.
- Friday, July 3rd: Minimum of 26°C and maximum of 30°C.
- Saturday, July 4th: Minimum of 26°C and maximum of 30°C.
- Sunday, July 5th: Minimum of 26°C and maximum of 30°C.

Weather forecast in São Luís
Monday, June 29:
On Monday, the day will be partly cloudy with moderate rain. Temperatures vary between a minimum of 25°C and a maximum of 30°C. The thermal sensation throughout the day varies between 26°C in the morning, 33°C during the day, 26°C in the afternoon and 26°C at night. The probability of rain is 100%, with an approximate volume of 13.47 mm. Air humidity will be 68%. Winds blow at 5.91 m/s and the ultraviolet index reaches 9.17, classified as high.

Tuesday, June 30:
On Tuesday, the scenario continues with partly cloudy skies and moderate rain. Temperatures vary between a minimum of 26°C and a maximum of 30°C. The thermal sensation is around 29°C in the morning, 31°C during the day, 30°C in the afternoon and 27°C at night. The probability of rain is 100%, with a volume of 11.63 mm. The relative humidity will be 73%. The winds blow at 5.72 m/s and the ultraviolet index reaches 10.24, a very high level.

Wednesday, July 1st:
Wednesday, the first day of July, continues the trend of partly cloudy skies with moderate rain. Temperatures vary between a minimum of 26°C and a maximum of 30°C. The thermal sensation is 27°C in the morning, 33°C during the day, 30°C in the afternoon and 27°C at night. The probability of rain remains at 100%, with a volume of 10.72 mm. Air humidity drops to 65%. The winds blow at 6.22 m/s and the ultraviolet index is 10.08, a very high level.

Thursday, July 2:
On Thursday, the sky remains partly cloudy with moderate rain. Temperatures vary between a minimum of 26°C and a maximum of 30°C. The thermal sensation will be 26°C in the morning, 33°C during the day, 30°C in the afternoon and 26°C at night. The probability of rain is 100%, with a volume of 7.76 mm. Air humidity continues to fall, reaching 63%. Winds blow at 6 m/s and the ultraviolet index reaches 10.22, a very high level.

Friday, July 3rd:
On Friday, the forecast is for rain with clear skies at times. Temperatures vary between a minimum of 26°C and a maximum of 30°C. The thermal sensation is 26°C in the morning, 33°C during the day, 30°C in the afternoon and 30°C at night. The probability of rain is 100%, with a volume of 9.6 mm. Air humidity will be 66%. Winds blow at 6.33 m/s. The ultraviolet index drops to 4.29, classified as moderate.

Saturday, July 4th:
On Saturday, the day will be partly cloudy with light rain. Temperatures vary between a minimum of 26°C and a maximum of 30°C. The thermal sensation will be 27°C in the morning, 34°C during the day, 30°C in the afternoon and 26°C at night. The probability of rain is 99%, with a volume of 4.11 mm, the lowest of the week. Air humidity will be 66%. The winds gain intensity, reaching 7.04 m/s. The ultraviolet index is 5, moderate level.

Sunday, July 5th:
On Sunday, the forecast indicates light rain in the morning, with partly cloudy skies in the afternoon. Temperatures vary between a minimum of 26°C and a maximum of 30°C. The thermal sensation will be 27°C in the morning, 32°C during the day, 30°C in the afternoon and 29°C at night. The probability of rain is 100%, with a volume of 7.41 mm. Air humidity will be 62%, the lowest of the week. Winds blow at 7 m/s and the ultraviolet index is 5, a moderate level.

Will it rain in São Luís?
The week in São Luís will be marked by moderate rain on practically every day, with a probability of precipitation equal to or greater than 99% throughout the entire period. The most significant volume of rain is forecast for Monday, June 29th, with 13.47 mm, while the lowest volume occurs on Saturday, July 4th, with 4.11 mm. Ultraviolet indices reach very high levels between Tuesday and Thursday, with values above 10, requiring protection from the sun. From Friday onwards, UV indices fall to a moderate level. Temperatures remain stable throughout the week, without significant variations between days.

The information contained in this text is from Open Weather. The texts generated by Artificial Intelligence on CNN Brasil are based on information collected and checked by journalists. Click here to find out more

Source: CNN

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