Maranhão weather in March
March is one of the least pleasant months in Maranhão: highs of 28°C (83°F) and about 322 mm (12.7 in) of rain on average. Nights average 25°C (76°F) and cloud cover 82% (NASA POWER, 2001–2025 averages). The sea averages 30°C (86°F). It is the 2nd wettest month of the year and the 2nd coolest. Compared with February, it is about as warm and wetter; April brings highs of 28°C (82°F) and 357 mm (14.1 in) of rain.
Figures are long-term averages for São Luís, the largest city in Maranhão. See below for other places.
Is March a good time to visit Maranhão?
least pleasant month Weather score 34/100.
March is one of the least pleasant months for weather in Maranhão. For better conditions, consider Jul–Dec.
Does it rain a lot in Maranhão in March?
Yes, it is one of the rainy months: about 322 mm (12.7 in) falls in an average March. It is the 2nd wettest month of the year.
How warm is Maranhão in March?
Days average 28°C (83°F) and nights 25°C (76°F).
Maranhão weather by month
| Month | High | Low | Rain | Cloud | Sea | Weather |
|---|---|---|---|---|---|---|
| January | 30°C (85°F) | 25°C (76°F) | 191 mm | 73% | 30°C (85°F) | fair |
| February | 29°C (83°F) | 25°C (76°F) | 247 mm | 81% | 30°C (86°F) | least pleasant |
| March | 28°C (83°F) | 25°C (76°F) | 322 mm | 82% | 30°C (86°F) | least pleasant |
| April | 28°C (82°F) | 25°C (77°F) | 357 mm | 82% | 30°C (86°F) | least pleasant |
| May | 28°C (83°F) | 25°C (77°F) | 238 mm | 67% | 31°C (87°F) | least pleasant |
| June | 29°C (84°F) | 25°C (76°F) | 149 mm | 50% | 30°C (87°F) | fair |
| July | 29°C (84°F) | 24°C (76°F) | 88 mm | 38% | 30°C (86°F) | best |
| August | 31°C (87°F) | 24°C (76°F) | 23 mm | 26% | 30°C (85°F) | best |
| September | 32°C (89°F) | 25°C (76°F) | 23 mm | 25% | 29°C (84°F) | best |
| October | 31°C (89°F) | 25°C (77°F) | 15 mm | 34% | 29°C (84°F) | best |
| November | 31°C (88°F) | 25°C (78°F) | 17 mm | 46% | 29°C (84°F) | best |
| December | 31°C (87°F) | 25°C (78°F) | 47 mm | 58% | 29°C (84°F) | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine. Page updated . How we rate months
Weather across Maranhão in March
Weather can differ a lot within Maranhão: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| São Luís | 28°C (83°F) | 25°C (76°F) | 322 mm | least pleasant |
| Imperatriz | 29°C (85°F) | 23°C (73°F) | 233 mm | least pleasant |
| São José de Ribamar | 29°C (85°F) | 24°C (76°F) | 287 mm | least pleasant |
| Timon | 29°C (84°F) | 23°C (73°F) | 270 mm | least pleasant |
| Caxias | 29°C (84°F) | 23°C (73°F) | 270 mm | least pleasant |
| Paço do Lumiar | 28°C (83°F) | 25°C (76°F) | 322 mm | least pleasant |
| Codó | 29°C (84°F) | 23°C (73°F) | 290 mm | least pleasant |
| Açailândia | 28°C (83°F) | 22°C (71°F) | 262 mm | least pleasant |
| Bacabal | 29°C (85°F) | 23°C (74°F) | 295 mm | least pleasant |
| Balsas | 30°C (85°F) | 22°C (71°F) | 193 mm | least pleasant |
| Barra do Corda | 29°C (84°F) | 22°C (72°F) | 207 mm | least pleasant |
| Santa Inês | 29°C (84°F) | 23°C (73°F) | 312 mm | least pleasant |