When to go · São Luís
São Luís, month by month
The best months for São Luís: Aug, Sep, Oct, Nov. Months to avoid: Feb, Mar, Apr, May.
Month by month
- JanuaryMixedOutside the best window (Aug–Nov (driest, sunniest)). Across Brazil: Peak summer holidays: hot, humid, stormy in Rio; beaches and flights full; Northeast dry and sunny.31.1 °C (88 °F) / 24.2 °C (76 °F), 20 rain days88 °F (31.1 °C) / 76 °F (24.2 °C), 20 rain daysCrowds: High · 1 festival or holiday
- FebruaryAvoidListed as a month to avoid: Feb–May (heaviest rain).30.6 °C (87 °F) / 24 °C (75 °F), 22 rain days87 °F (30.6 °C) / 75 °F (24 °C), 22 rain daysCrowds: High · 1 festival or holiday
- MarchAvoidListed as a month to avoid: Feb–May (heaviest rain).30.3 °C (87 °F) / 23.8 °C (75 °F), 25 rain days87 °F (30.3 °C) / 75 °F (23.8 °C), 25 rain daysCrowds: Medium · 1 festival or holiday
- AprilAvoidListed as a month to avoid: Feb–May (heaviest rain).30.6 °C (87 °F) / 23.8 °C (75 °F), 24 rain days87 °F (30.6 °C) / 75 °F (23.8 °C), 24 rain daysCrowds: Medium
- MayAvoidListed as a month to avoid: Feb–May (heaviest rain).31.3 °C (88 °F) / 23.9 °C (75 °F), 21 rain days88 °F (31.3 °C) / 75 °F (23.9 °C), 21 rain daysCrowds: Low
- JuneGoodOutside the best window (Aug–Nov (driest, sunniest)). Across Brazil: Festa Junina bonfires and forró in the Northeast; Parintins festival in the Amazon; Pantanal dry season begins.31.5 °C (89 °F) / 23.5 °C (74 °F), 15 rain days89 °F (31.5 °C) / 74 °F (23.5 °C), 15 rain daysCrowds: Medium · 1 festival or holiday
- JulyGoodOutside the best window (Aug–Nov (driest, sunniest)). Across Brazil: School holidays: Iguaçu and the Pantanal busy; Lençóis lagoons full; Rio dry and clear.31.5 °C (89 °F) / 23.4 °C (74 °F), 11 rain days89 °F (31.5 °C) / 74 °F (23.4 °C), 11 rain daysCrowds: High
- AugustGreatInside São Luís's best window: Aug–Nov (driest, sunniest).32 °C (90 °F) / 24.7 °C (76 °F), 5 rain days90 °F (32 °C) / 76 °F (24.7 °C), 5 rain daysCrowds: Medium
- SeptemberGreatInside São Luís's best window: Aug–Nov (driest, sunniest).32.3 °C (90 °F) / 24.4 °C (76 °F), 3 rain days90 °F (32.3 °C) / 76 °F (24.4 °C), 3 rain daysCrowds: Medium
- OctoberGreatInside São Luís's best window: Aug–Nov (driest, sunniest).32.5 °C (91 °F) / 24.7 °C (76 °F), 3 rain days91 °F (32.5 °C) / 76 °F (24.7 °C), 3 rain daysCrowds: Medium
- NovemberGreatInside São Luís's best window: Aug–Nov (driest, sunniest).33.5 °C (92 °F) / 24.9 °C (77 °F), 4 rain days92 °F (33.5 °C) / 77 °F (24.9 °C), 4 rain daysCrowds: Medium
- DecemberMixedOutside the best window (Aug–Nov (driest, sunniest)). Across Brazil: Summer rains start; New Year's Eve on Copacabana fills Rio; book everything early.32.2 °C (90 °F) / 25 °C (77 °F), 8 rain days90 °F (32.2 °C) / 77 °F (25 °C), 8 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in São Luís, side by side.
Verdict
Aug: Great
Sep: Great
Daytime high
Aug: 32 °C (90 °F)90 °F (32 °C)
Sep: 32.3 °C (90 °F)90 °F (32.3 °C)
Night low
Aug: 24.7 °C (76 °F)76 °F (24.7 °C)
Sep: 24.4 °C (76 °F)76 °F (24.4 °C)
Rain days
Aug: 5
Sep: 3 (better)
Crowds
Aug: Medium
Sep: Medium
Prices
Aug: Medium
Sep: Medium
Festivals listed
Aug: 0
Sep: 0
August: Inside São Luís's best window: Aug–Nov (driest, sunniest).
September: Inside São Luís's best window: Aug–Nov (driest, sunniest).
São Luís: figures are long-term averages from this guide, not a forecast.