When to go · São Luís
São Luís in December
Mixed month. Outside the best window (Aug–Nov (driest, sunniest)). Across Brazil: Summer rains start; New Year's Eve on Copacabana fills Rio; book everything early.
Key facts
- Verdict
- Mixed
- Temperature
- 32°C (90°F)90°F (32°C) / 25°C (77°F)77°F (25°C)
- average high / low
- Rain days
- 8
- Crowds
- High
- Brazil overall
- Prices
- High
- Brazil overall
Verdict
Outside the best window (Aug–Nov (driest, sunniest)). Across Brazil: Summer rains start; New Year's Eve on Copacabana fills Rio; book everything early.
Is another month better than December?
December is rated mixed. These months rate higher:
Weather in December
- São LuísHighs around 32.2 °C (90 °F), lows around 25 °C (77 °F), rain on about 8 daysHighs around 90 °F (32.2 °C), lows around 77 °F (25 °C), rain on about 8 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas big impact
25 Dec · Brazil
Family holiday; summer travel peak starts.
Crowds and prices
- Crowds · Brazil overall
- High
- Prices · Brazil overall
- High
Brazil overall: Summer rains start; New Year's Eve on Copacabana fills Rio; book everything early.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in São Luís, side by side.
Verdict
Dec: Mixed
Aug: Great (better)
Daytime high
Dec: 32.2 °C (90 °F)90 °F (32.2 °C)
Aug: 32 °C (90 °F)90 °F (32 °C)
Night low
Dec: 25 °C (77 °F)77 °F (25 °C)
Aug: 24.7 °C (76 °F)76 °F (24.7 °C)
Rain days
Dec: 8
Aug: 5 (better)
Crowds
Dec: High
Aug: Medium
Prices
Dec: High
Aug: Medium
Festivals listed
Dec: 1
Aug: 0
December: Outside the best window (Aug–Nov (driest, sunniest)). Across Brazil: Summer rains start; New Year's Eve on Copacabana fills Rio; book everything early.
August: Inside São Luís's best window: Aug–Nov (driest, sunniest).
São Luís: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen