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São Luís will end May with a week marked by rain every day

São Luís will have a week marked by rain every day, from Monday, 25th, to Sunday, May 31st. Temperatures vary between minimums of 25°C and maximums of 30°C throughout the period. Air humidity rises progressively, reachin...

Publicado em 25/05/2026 5 min de leitura
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São Luís will end May with a week marked by rain every day
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São Luís will have a week marked by rain every day, from Monday, 25th, to Sunday, May 31st. Temperatures vary between minimums of 25°C and maximums of 30°C throughout the period. Air humidity rises progressively, reaching 84% on Saturday, and winds maintain moderate speed throughout the week. Ultraviolet radiation levels remain high, especially at the beginning of the week.


Temperature for the next few days in São Luís


- Monday, May 25th: minimum of 25°C and maximum of 30°C.
- Tuesday, May 26th: minimum of 25°C and maximum of 29°C.
- Wednesday, May 27th: minimum of 25°C and maximum of 29°C.
- Thursday, May 28th: minimum of 25°C and maximum of 28°C.
- Friday, May 29th: minimum of 26°C and maximum of 28°C.
- Saturday, May 30th: minimum of 26°C and maximum of 27°C.
- Sunday, May 31st: minimum of 25°C and maximum of 28°C.

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Weather forecast in São Luís
Monday, May 25:
On Monday, the day will be partly cloudy with light rain. Temperatures vary between a maximum of 30°C and a minimum of 25°C. The thermal sensation reaches 32°C during the day, drops to 31°C in the afternoon and at night it is around 27°C. Air humidity will be 65%. The probability of rain is 100%, with an estimated volume of 1.63 mm. Winds blow at 5.48 m/s. The UV index will be very high, with a value of 11.


Tuesday, May 26:
On Tuesday, the day will be partly cloudy with moderate rain. Temperatures vary between a maximum of 29°C and a minimum of 25°C. The thermal sensation reaches 32°C during the day, drops to 31°C in the afternoon and remains at 29°C at night. Air humidity will be 68%. The probability of rain is 100%, with an estimated volume of 6.37 mm. Winds blow at 5.52 m/s. The UV index will be very high, with a value of 11.


Wednesday, May 27:
On Wednesday, the day will be partly cloudy with moderate rain. Temperatures vary between a maximum of 29°C and a minimum of 25°C. The thermal sensation reaches 32°C during the day, remains at 31°C in the afternoon and drops to 27°C at night. Air humidity will be 72%. The probability of rain is 100%, with an estimated volume of 10.57 mm. Winds blow at 5.26 m/s. The UV index will be very high, with a value of 11.

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Toque agora.


Thursday, May 28:
On Thursday, the day will have moderate rain. Temperatures vary between a maximum of 28°C and a minimum of 25°C. The thermal sensation reaches 33°C during the day, drops significantly to 26°C in the afternoon and remains at 27°C at night. Air humidity will be 78%. The probability of rain is 100%, with an estimated volume of 13.85 mm. Winds blow at 5.75 m/s. The UV index will be very high, with a value of 11.


Friday, May 29:
On Friday, the day will be partly cloudy with moderate rain. Temperatures vary between a maximum of 28°C and a minimum of 26°C. The thermal sensation reaches 33°C during the day, falling to 26°C in the afternoon and at night. Air humidity will be 81%. The probability of rain is 100%, with an estimated volume of 19.54 mm. Winds blow at 6.51 m/s. The UV ray index will be moderate, with a value of 5.


Saturday, May 30:
On Saturday, the day will have moderate rain. Temperatures vary between a maximum of 27°C and a minimum of 26°C, with the lowest temperature range of the week. The thermal sensation reaches 30°C during the day, drops to 27°C in the afternoon and stays at 26°C at night. Air humidity will be 84%, the highest level of the week. The probability of rain is 100%, with an estimated volume of 38.91 mm, the highest of the period. Winds blow at 6.71 m/s. The UV ray index will be moderate, with a value of 5.


Sunday, May 31:
On Sunday, the day will be partly cloudy with moderate rain. Temperatures vary between a maximum of 28°C and a minimum of 25°C. The thermal sensation reaches 32°C during the day, drops to 26°C in the afternoon and remains at that level at night. Air humidity will be 78%. The probability of rain is 100%, with an estimated volume of 12.39 mm. Winds blow at 6.49 m/s.

The UV ray index will be moderate, with a value of 5.


Will it rain in São Luís?
The forecast indicates rain every day of the week in São Luís, with no window of dry weather in the period. The volume of precipitation shows an increasing trend over the days, with emphasis on Saturday, the 30th, when the estimate reaches 38.91 mm - the highest accumulated of the week.


Air humidity also increases progressively, rising from 65% on Monday and reaching 84% on Saturday. The winds intensify slightly at the end of the week, with a maximum speed of 6.71 m/s on Saturday.


Ultraviolet radiation levels are very high from Monday to Thursday, with values around 11, which requires attention and the use of sun protection even on cloudy days. As of Friday, the index drops to a moderate level.


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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