São Luís Weather in May

May in São Luís typically sees daytime highs of 30°C (86°F) and nighttime lows of 25°C (77°F). May falls within the rainy season, so heavy rainfall is to be expected.

Rainfall in São Luís in May

São Luís is in the rainy season in May, with rain on around 31 days and an average of 291 mm (11 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in São Luís in May

Daytime temperatures in São Luís reach 30°C (86°F) in May, dropping to 25°C (77°F) at night. This kind of day-to-night contrast is typical for this time of year. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in São Luís in May

With about 163 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.

If you're looking for dry conditions and comfortable temperatures, May may not be the ideal month to visit São Luís. Our weather planner can help you explore destinations with more pleasant weather conditions.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• September
• October
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For a detailed overview over the year and the best time to visit Brazil, check out our São Luís's climate page.

São Luís Temperature in May

Min Temperature 25°C (77°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 102%  

Precipitation 291 mm (11 in)  

Rainy days 31 days  

Humidity 89% *  

Sunshine 163 hours *  

Percentage Sunshine *  

What to Wear in São Luís in May

Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in São Luís in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Brazil, check out our São Luís's climate page.

More climate data for São Luís

Temperature Rainfall Sunshine Humidity

See the full São Luís climate overview or explore weather in Brazil.