Climate Insights for São Bento

São Bento, Maranhão, Brazil

Hottest
December
31°C peak
Coldest
November
17°C low
Wettest
December
33mm rain
Best to Visit
April, May, June
Mild temps & low rain

Climate Overview

The climate in São Bento is warm and mild. The average annual temperature is 25°C and approximately 241mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. São Bento sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 27° Average: 26° Min: 26° Feb Max: 26° Average: 26° Min: 25° Mar Max: 26° Average: 25° Min: 24° Apr Max: 25° Average: 24° Min: 24° May Max: 25° Average: 25° Min: 24° Jun Max: 24° Average: 24° Min: 23° Jul Max: 24° Average: 24° Min: 23° Aug Max: 25° Average: 24° Min: 24° Sep Max: 26° Average: 26° Min: 25° Oct Max: 29° Average: 27° Min: 25° Nov Max: 25° Average: 20° Min: 17° Dec Max: 31° Average: 29° Min: 26°
Max
Average
Min

São Bento sees moderate temperature variation throughout the year, ranging from 17°C to 31°C. The warmest month is December, when average highs reach 31°C and the mean temperature sits around 29°C. November is the coolest month, with minimum temperatures around 17°C and an average of 20°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 8°C shift in average temperatures.

Precipitation

0mm 25mm 50mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 21mm Feb Precipitation: 33mm Mar Precipitation: 33mm Apr Precipitation: 30mm May Precipitation: 13mm Jun Precipitation: 10mm Jul Precipitation: 4mm Aug Precipitation: 0mm Sep Precipitation: 0mm Oct Precipitation: 33mm Nov Precipitation: 33mm Dec Precipitation: 33mm
Precipitation

São Bento is a quite dry location, receiving approximately 241mm of precipitation annually, which averages out to around 20mm per month. The wettest month is February, averaging 33mm of rainfall. March and October also tend to see above-average precipitation. The driest month is September, with just 0mm. That's 33mm less than February, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 7km/h Feb Wind Speed: 7km/h Mar Wind Speed: 6km/h Apr Wind Speed: 6km/h May Wind Speed: 6km/h Jun Wind Speed: 7km/h Jul Wind Speed: 6km/h Aug Wind Speed: 4km/h Sep Wind Speed: 4km/h Oct Wind Speed: 3km/h Nov Wind Speed: 2km/h Dec Wind Speed: 5km/h
Wind Speed

São Bento is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 5km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

16 days until Spring

It is currently winter in São Bento, which began on June 21, 2026. São Bento sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in December at around 31°C, while the coldest stretch bottoms out in November near 17°C. Spring is next, beginning on September 23, 2026 (16 days from now).

Spring

Temperatures range from 17 to 29°C. Rainfall is relatively light, with around 66mm over the season and a monthly average of 22mm. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 25 to 31°C. Rainfall is relatively light, with around 86mm over the season and a monthly average of 29mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 24 to 26°C. Rainfall is relatively light, with around 75mm over the season and a monthly average of 25mm. Winds are generally light, averaging 6km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

Winter

Temperatures range from 23 to 25°C. Precipitation is minimal, with only around 14mm for the entire season. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 26°
Feb 26°
Mar 25°
Apr 24°
May 25°
Jun 24°
Jul 24°
Aug 24°
Sep 26°
Oct 27°
Nov 20°
Dec 29°

The best time to visit São Bento is during April, May, June, July, August and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 15mm per month. By contrast, December can be uncomfortably hot with temperatures reaching 31°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for São Bento based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
26 °C
27 °C
7 km/h
21 mm
0 cm
Feb
25 °C
26 °C
7 km/h
33 mm
0 cm
Mar
24 °C
26 °C
6 km/h
33 mm
0 cm
Apr
24 °C
25 °C
6 km/h
30 mm
0 cm
May
24 °C
25 °C
6 km/h
13 mm
0 cm
Jun
23 °C
24 °C
7 km/h
10 mm
0 cm
Jul
23 °C
24 °C
6 km/h
4 mm
0 cm
Aug
24 °C
25 °C
4 km/h
0 mm
0 cm
Sep Current
25 °C
26 °C
4 km/h
0 mm
0 cm
Oct
25 °C
29 °C
3 km/h
33 mm
0 cm
Nov
17 °C
25 °C
2 km/h
33 mm
0 cm
Dec
26 °C
31 °C
5 km/h
33 mm
0 cm
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Metric (°C, km/h)