São Luís monthly weather averages

Contents

Average daytime temperature
Average rainfall
Average daily sunshine
Day / night temperatures
Sea temperature
Wind speed
Relative humidity
Quick weather stats
Location map

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at São Luís

São Luís average temperature chart (Celsius)

São Luís average temperature chart (Fahrenheit)

Average monthly temperatures in São Luís (degrees centigrade and fahrenheit)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
°C	30.5	29.8	29.7	29.9	30.3	30.6	30.5	31.1	31.5	31.8	31.8	31.5
°F	86.9	85.7	85.4	85.9	86.6	87.1	86.9	88	88.7	89.2	89.2	88.7

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

São Luís monthly rainfall chart (inches)

Average monthly rainfall in São Luís (mm and inches)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
mm	224	325	390	431	294	155	121	35	18	10	13	85
inches	8.8	12.8	15.4	16.9	11.6	6.1	4.8	1.4	0.7	0.4	0.5	3.3
Rainy days	26	28	31	30	31	20	18	9	6	4	6	12

Average annual rainfall in São Luís: 2053.167mm (808.3 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in São Luís

Average daily sunshine São Luís
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hrs sunshine	6.5	4.4	3.8	4.2	5.7	7.7	8.3	9	8.9	8.6	8.6	7.1

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

São Luís average minimum / maximum temperatures (Celsius)

São Luís average minimum / maximum temperatures (Fahrenheit)

Maximum and minimum daily temperatures in São Luís (degrees centigrade and fahrenheit)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Min °C	22.7	23.2	23.2	23.3	23.3	23	22.7	23.1	23.5	23.7	23.9	23.1
Max °C	30.7	30	29.9	30.1	30.5	30.8	30.7	31.3	31.7	32	32	31.7
Min °F	72.9	73.8	73.7	73.9	73.9	73.4	72.9	73.6	74.3	74.6	74.9	73.6
Max °F	80.1	79.9	79.7	80.1	80.4	80.4	80.1	81	81.7	82	82.2	81.3

Sea temperature

The graph below shows the average sea temperature.

São Luís average sea temperature chart (Fahrenheit)

Average sea temperature around São Luís in degrees centigrade and fahrenheit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
°C	28.1	28.4	28.5	28.7	28.6	28.4	27.9	27.5	27.2	27.3	27.5	27.8
°F	82.5	83.1	83.3	83.6	83.5	83.1	82.2	81.4	81	81.1	81.5	82

Wind speed

The graph below shows the average wind speed.

São Luís average winspeed by month (km/h)

São Luís average winspeed by month (mph)

Average wind speed in São Luís (mph and kmh)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
km/h	8	7	6	5	5	6	7	10	13	13	13	12
mph	5	4	4	3	3	4	4	6	8	8	8	7

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Average relative humidity in São Luís
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
84%	87%	88%	89%	88%	85%	84%	82%	79%	79%	77%	79%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

São Luís weather stats

São Luís weather statistics
Hottest month:	November	31.8°C 89.2°F
Driest month:	October	10mm 0.4ins
Sunniest month:	August	9hrs
Coldest month:	March	29.7°C 85.5°F
Wettest month:	April	431mm 17ins
Warmest sea:	April	28.7°C 83.7°F

Map showing location of São Luís (-2.52972, -44.30278)