São Luís in January
In January, São Luís averages 30°C (85°F) during the day and 25°C (76°F) at night, with frequent rain — about 30 days of the month see precipitation (238 mm total).
High seasonConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
January offers comfortable temperatures in São Luís, with some rain to plan around.
How January compares to the rest of the year in São Luís
January is in the middle of the year for warmth in São Luís (9th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 1°C below the annual average (30°C). January runs 1°C cooler than December (31°C) and cools 1°C in February (29°C).
January sunrise & sunset in São Luís
Times shown for São Luís local time (America/Fortaleza), calculated for the 15th of January. They shift by a few minutes day to day across the month.
Photography light in São Luís — January
Golden-hour and blue-hour windows for the 15th of January, in São Luís's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — São Luís in January
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on January's tier (High season) and São Luís's popularity.
Crowds & pricing — January in São Luís
This is a busy month in São Luís — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: Southern Hemisphere summer holidays
Sun & mosquito risk — January in São Luís
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
São Luís in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 30°C / 85°F | 25°C / 76°F | 238 mm | 30 | — |
| February | 29°C / 84°F | 24°C / 76°F | 327 mm | 28 | — |
| March | 29°C / 84°F | 24°C / 75°F | 473 mm | 31 | — |
| April | 29°C / 85°F | 24°C / 76°F | 370 mm | 30 | — |
| May | 30°C / 85°F | 24°C / 76°F | 249 mm | 31 | — |
| June | 30°C / 85°F | 24°C / 76°F | 126 mm | 29 | — |
| July | 30°C / 86°F | 24°C / 76°F | 74 mm | 29 | — |
| August | 31°C / 88°F | 25°C / 77°F | 39 mm | 27 | — |
| September | 32°C / 89°F | 25°C / 78°F | 29 mm | 25 | — |
| October | 32°C / 89°F | 26°C / 78°F | 33 mm | 23 | — |
| November | 32°C / 89°F | 26°C / 78°F | 73 mm | 22 | — |
| December | 31°C / 88°F | 26°C / 78°F | 117 mm | 26 | — |
Other cities with similar January weather
🌍 See the full ranked list of climate twins for São Luís in January →
Frequently asked questions
How hot is São Luís in January?
In January, São Luís averages a high of 30°C (85°F) and a low of 25°C (76°F) — generally hot.
Does it rain a lot in São Luís in January?
January is quite rainy in São Luís, with about 30 rainy days on average.
Is January a good time to visit São Luís?
January is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for São Luís in January?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full January packing list for São Luís for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.