Climate Insights for Barras

Barras, Piauí, Brazil

Hottest
April
35°C peak
Coldest
March
20°C low
Wettest
December
33mm rain
Best to Visit
March
Mild temps & low rain

Climate Overview

The climate in Barras is hot. The average annual temperature is 27°C and approximately 285mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Barras 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: 34° Average: 29° Min: 24° Feb Max: 33° Average: 28° Min: 23° Mar Max: 30° Average: 24° Min: 20° Apr Max: 35° Average: 31° Min: 28° May Max: 31° Average: 30° Min: 29° Jun Max: 27° Average: 27° Min: 27° Jul Max: 28° Average: 28° Min: 27° Aug Max: 27° Average: 26° Min: 25° Sep Max: 28° Average: 27° Min: 26° Oct Max: 28° Average: 27° Min: 26° Nov Max: 28° Average: 27° Min: 26° Dec Max: 29° Average: 26° Min: 25°
Max
Average
Min

Barras sees moderate temperature variation throughout the year, ranging from 20°C to 35°C. The warmest month is April, when average highs reach 35°C and the mean temperature sits around 31°C. March is the coolest month, with minimum temperatures around 20°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between March and April, 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: 14mm Feb Precipitation: 10mm Mar Precipitation: 33mm Apr Precipitation: 22mm May Precipitation: 0mm Jun Precipitation: 9mm Jul Precipitation: 33mm Aug Precipitation: 33mm Sep Precipitation: 33mm Oct Precipitation: 33mm Nov Precipitation: 33mm Dec Precipitation: 33mm
Precipitation

Barras is a quite dry location, receiving approximately 285mm of precipitation annually, which averages out to around 24mm per month. The wettest month is March, averaging 33mm of rainfall. July and August also tend to see above-average precipitation. The driest month is May, with just 0mm. That's 32mm 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: 2km/h Feb Wind Speed: 3km/h Mar Wind Speed: 3km/h Apr Wind Speed: 4km/h May Wind Speed: 10km/h Jun Wind Speed: 15km/h Jul Wind Speed: 12km/h Aug Wind Speed: 8km/h Sep Wind Speed: 7km/h Oct Wind Speed: 5km/h Nov Wind Speed: 7km/h Dec Wind Speed: 4km/h
Wind Speed

Barras is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, 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 13km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 11km/h in winter, 6km/h in spring, 3km/h in summer, 5km/h in autumn.

Seasons

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

16 days until Spring

It is currently winter in Barras, which began on June 21, 2026. Barras sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in April at around 35°C, while the coldest stretch bottoms out in March near 20°C. Spring is next, beginning on September 23, 2026 (16 days from now).

Spring

Temperatures range from 26 to 28°C. Rainfall is relatively light, with around 98mm over the season and a monthly average of 33mm. Winds are generally light, averaging 6km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 23 to 34°C. Rainfall is relatively light, with around 57mm over the season and a monthly average of 19mm. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 20 to 35°C. Rainfall is relatively light, with around 55mm over the season and a monthly average of 18mm. Winds are generally light, averaging 5km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

Winter

Temperatures range from 25 to 28°C. Rainfall is relatively light, with around 74mm over the season and a monthly average of 25mm. Winds are generally light, averaging 11km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 29°
Feb 28°
Mar 24°
Apr 31°
May 30°
Jun 27°
Jul 28°
Aug 26°
Sep 27°
Oct 27°
Nov 27°
Dec 26°

The best time to visit Barras is during March, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 33mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 35°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Barras 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
34 °C
2 km/h
14 mm
0 cm
Feb
23 °C
33 °C
3 km/h
10 mm
0 cm
Mar
20 °C
30 °C
3 km/h
33 mm
0 cm
Apr
28 °C
35 °C
4 km/h
22 mm
0 cm
May
29 °C
31 °C
10 km/h
0 mm
0 cm
Jun
27 °C
27 °C
15 km/h
9 mm
0 cm
Jul
27 °C
28 °C
12 km/h
33 mm
0 cm
Aug
25 °C
27 °C
8 km/h
33 mm
0 cm
Sep Current
26 °C
28 °C
7 km/h
33 mm
0 cm
Oct
26 °C
28 °C
5 km/h
33 mm
0 cm
Nov
26 °C
28 °C
7 km/h
33 mm
0 cm
Dec
25 °C
29 °C
4 km/h
33 mm
0 cm
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Metric (°C, km/h)