The climate of Maranhão: when to go in Maranhão

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Maranhão has a tropical climate with two distinct seasons based on rainfall. High temperatures and high humidity occur during the rainy season. While during the dry season the temperatures are always high but the humidity is lower.

Along the coast, rainfall is greater and the dry season is limited to a short period between August and November. In the northwest part of the coast the climate of Maranhão tends to become equatorial, and the dry season is further reduced. In São Luís do Maranhão there are on average more than 2,200 mm of rain per year, most of which falls between January and May. The rainiest months are March and April.

Inland the dry season lasts longer and rainfall tends to decrease. In these regions there are between 1,600 mm and 1,200 mm of rain per year, the dry season is from May to October or from June to November according to the regions. The rains fall mainly between December and April or May, the rainiest month is March.

Temperatures are stable in every season with small variations. In Maranhão the average maximum temperatures tend to be a few degrees higher in the inland regions than the coast, they vary between 29 ° C and 31 ° C along the coast and between 31 ° C and 34 ° C / 36 ° C in the interior. The average minimum temperatures have even lower variations and vary between 22 ° C and 24 ° C along the coast and 19 ° C / 20 ° C and 22 ° C / 23 ° C in the interior.

The sea water temperature remains stable throughout the year between 27 ° C and 28 ° C.

WHEN TO GO TO MARANHÃO

The best time to visit the Maranhão are the months of the dry season, that is, those between August and November along the coast, and between May / June and October / November in the inland regions.

THE CLIMATE OF MARANHÃO: CLIMATE TABLES

CLIMATE TABLES: SÃO LUIS DO MARANHÃO

SÃO LUIS DO MARANHÃO (4 meters)
Month	Average low (°C)	Average high (°C)	Precip. (mm)	Precip. days
January	23,5	30,0	244,2	13
February	23,1	29,4	373,0	17
March	23,0	29,4	428,0	23
April	23,1	29,6	475,9	22
May	23,1	30,1	316,5	20
June	22,9	30,4	173,3	13
July	22,6	30,2	131,1	10
August	23,0	30,7	29,4	4
September	23,5	31,0	23,3	2
October	23,7	31,2	7,6	1
November	24,0	31,4	10,5	1
December	24,0	31,1	77,2	4
YEAR	23,3	30,4	2290,0	130

CLIMATE TABLES: CAIXAS

CAIXAS (66 meters)
Month	Average low (°C)	Average high (°C)	Precip. (mm)	Precip. days
January	22	32	242
February	22	32	274
March	22	31	341
April	22	31	273
May	22	31	137
June	21	31	32
July	20	32	14
August	20	34	16
September	22	35	13
October	23	36	27
November	23	35	52
December	23	34	136
YEAR			1557

CLIMATE TABLES: IMPERATRIZ

IMPERATRIZ (95 meters)
Month	Average low (°C)	Average high (°C)	Precip. (mm)	Precip. days
January	22,2	31,1	215,5	15
February	22,2	31,1	209,3	15
March	22,2	31,2	314,5	17
April	22,4	31,6	208,1	13
May	21,8	32,3	63,5	7
June	20,2	33,8	80,4	3
July	19,4	33,5	6,5	1
August	19,9	34,4	8,4	1
September	21,4	34,1	30,2	3
October	22,4	33,2	75,6	6
November	22,3	32,7	115,2	8
December	22,2	31,4	205,7	13
YEAR	21,6	32,5	1533,3	102

CLIMATE TABLES: BALSAS

BALSAS (283 meters)
Month	Average low (°C)	Average high (°C)	Precip. (mm)	Precip. days
January	22	30	187
February	22	31	191
March	22	31	230
April	22	31	138
May	21	32	41
June	19	33	9
July	19	33	6
August	20	34	3
September	22	35	27
October	21	33	83
November	22	32	160
December	21	31	141
YEAR			1216

CLIMATE TABLES: THE TEMPERATURE OF THE SEA WATER

SÃO LUIS DO MARANHÃO
Month	Sea water temperature °C
January	28
February	28
March	28
April	28
May	28
June	28
July	27
August	27
September	27
October	27
November	27
December	28