Climate Insights for Bacabal

Bacabal, Maranhão, Brazil

Hottest
October
36°C peak
Coldest
July
23°C low
Wettest
March
335mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Bacabal is hot. The average annual temperature is 28°C and approximately 1357mm of precipitation falls per year. March is the wettest month, receiving around 335mm of rainfall. Bacabal 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: 32° Average: 27° Min: 24° Feb Max: 31° Average: 27° Min: 24° Mar Max: 31° Average: 27° Min: 24° Apr Max: 31° Average: 27° Min: 24° May Max: 32° Average: 28° Min: 24° Jun Max: 32° Average: 27° Min: 23° Jul Max: 33° Average: 27° Min: 23° Aug Max: 34° Average: 28° Min: 23° Sep Max: 36° Average: 30° Min: 24° Oct Max: 36° Average: 30° Min: 25° Nov Max: 35° Average: 30° Min: 25° Dec Max: 34° Average: 29° Min: 25°
Max
Average
Min

Bacabal sees moderate temperature variation throughout the year, ranging from 23°C to 36°C. October is the hottest month, with daytime highs reaching 36°C and an average of 30°C. July is the coolest month, with minimum temperatures around 23°C and an average of 27°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 225mm Feb Precipitation: 257mm Mar Precipitation: 335mm Apr Precipitation: 235mm May Precipitation: 94mm Jun Precipitation: 25mm Jul Precipitation: 11mm Aug Precipitation: 3mm Sep Precipitation: 4mm Oct Precipitation: 14mm Nov Precipitation: 47mm Dec Precipitation: 107mm
Precipitation

Bacabal is a fairly wet location, receiving approximately 1357mm of precipitation annually, which averages out to around 113mm per month. The wettest month is March, averaging 335mm of rainfall. February and April also tend to see above-average precipitation. The driest month is August, with just 3mm. That's 332mm less than March, 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 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 10km/h Feb Wind Speed: 10km/h Mar Wind Speed: 9km/h Apr Wind Speed: 9km/h May Wind Speed: 10km/h Jun Wind Speed: 12km/h Jul Wind Speed: 14km/h Aug Wind Speed: 13km/h Sep Wind Speed: 14km/h Oct Wind Speed: 15km/h Nov Wind Speed: 13km/h Dec Wind Speed: 12km/h
Wind Speed

Bacabal is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 14km/h in spring, 11km/h in summer, 9km/h in autumn.

Seasons

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

89 days until Winter

It is currently autumn in Bacabal, which began on March 20, 2026. Bacabal sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in October at around 36°C, while the coldest stretch bottoms out in July near 23°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 24 to 36°C. Rainfall is relatively light, with around 65mm over the season and a monthly average of 22mm. Winds are generally light, averaging 14km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.

Summer

Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 589mm across the season with a monthly average of 196mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 664mm across the season with a monthly average of 221mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 23 to 34°C. Precipitation is minimal, with only around 39mm for the entire season. Winds are generally light, averaging 13km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Bacabal 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
24 °C
32 °C
10 km/h
225 mm
0 cm
Feb
24 °C
31 °C
10 km/h
257 mm
0 cm
Mar Current
24 °C
31 °C
9 km/h
335 mm
0 cm
Apr
24 °C
31 °C
9 km/h
235 mm
0 cm
May
24 °C
32 °C
10 km/h
94 mm
0 cm
Jun
23 °C
32 °C
12 km/h
25 mm
0 cm
Jul
23 °C
33 °C
14 km/h
11 mm
0 cm
Aug
23 °C
34 °C
13 km/h
3 mm
0 cm
Sep
24 °C
36 °C
14 km/h
4 mm
0 cm
Oct
25 °C
36 °C
15 km/h
14 mm
0 cm
Nov
25 °C
35 °C
13 km/h
47 mm
0 cm
Dec
25 °C
34 °C
12 km/h
107 mm
0 cm
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Metric (°C, km/h)