Climate Insights for Testa Branca

Região Geográfica Intermediária de São Raimundo Nonato, Piauí, Brazil

Hottest
October
35°C peak95°F peak
Coldest
July
20°C low68°F low
Wettest
January
124 mm rain4.9 in rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Testa Branca is hot. The average annual temperature is 27°C and approximately 542 mm of precipitation falls per year. January is the wettest month, receiving around 124 mm of rainfall. Testa Branca sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Testa Branca is hot. The average annual temperature is 81°F and approximately 21.3 in of precipitation falls per year. January is the wettest month, receiving around 4.9 in of rainfall. Testa Branca sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 32°Average: 27°Min: 23°FebMax: 31°Average: 27°Min: 23°MarMax: 32°Average: 27°Min: 23°AprMax: 32°Average: 27°Min: 23°MayMax: 32°Average: 27°Min: 22°JunMax: 32°Average: 26°Min: 21°JulMax: 31°Average: 26°Min: 20°AugMax: 33°Average: 26°Min: 20°SepMax: 34°Average: 28°Min: 22°OctMax: 35°Average: 29°Min: 23°NovMax: 33°Average: 28°Min: 24°DecMax: 33°Average: 28°Min: 24°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 89°FAverage: 80°FMin: 74°FFebMax: 88°FAverage: 80°FMin: 73°FMarMax: 89°FAverage: 81°FMin: 74°FAprMax: 90°FAverage: 81°FMin: 73°FMayMax: 90°FAverage: 81°FMin: 72°FJunMax: 89°FAverage: 79°FMin: 70°FJulMax: 89°FAverage: 78°FMin: 68°FAugMax: 91°FAverage: 80°FMin: 69°FSepMax: 93°FAverage: 82°FMin: 71°FOctMax: 95°FAverage: 84°FMin: 74°FNovMax: 92°FAverage: 83°FMin: 75°FDecMax: 91°FAverage: 82°FMin: 74°F
Max
Average
Min

Testa Branca sees moderate temperature variation throughout the year, ranging from 20°C to 35°C. October is the hottest month, with daytime highs reaching 35°C and an average of 29°C. July is the coolest month, with minimum temperatures around 20°C and an average of 26°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs.Testa Branca sees moderate temperature variation throughout the year, ranging from 68°F to 95°F. October is the hottest month, with daytime highs reaching 95°F and an average of 84°F. July is the coolest month, with minimum temperatures around 68°F and an average of 78°F. On average, daily temperatures fluctuate by about 18°F between overnight lows and afternoon highs.

Precipitation

0mm25mm50mm75mm100mm125mm150mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 124mmFebPrecipitation: 91mmMarPrecipitation: 80mmAprPrecipitation: 56mmMayPrecipitation: 14mmJunPrecipitation: 1mmJulPrecipitation: 1mmAugPrecipitation: 1mmSepPrecipitation: 1mmOctPrecipitation: 33mmNovPrecipitation: 82mmDecPrecipitation: 60mm
Precipitation
0in2in4inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 4.9inFebPrecipitation: 3.6inMarPrecipitation: 3.1inAprPrecipitation: 2.2inMayPrecipitation: 0.5inJunPrecipitation: 0.1inJulPrecipitation: 0inAugPrecipitation: 0inSepPrecipitation: 0inOctPrecipitation: 1.3inNovPrecipitation: 3.2inDecPrecipitation: 2.3in
Precipitation

Testa Branca is a relatively dry area, receiving approximately 542 mm of precipitation annually, which averages out to around 45 mm per month. The wettest month is January, averaging 124 mm of rainfall. February and November also tend to see above-average precipitation. The driest month is September, with just 1 mm. That's 123 mm less than January, 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.Testa Branca is a relatively dry area, receiving approximately 21.3 in of precipitation annually, which averages out to around 1.8 in per month. The wettest month is January, averaging 4.9 in of rainfall. February and November also tend to see above-average precipitation. The driest month is September, with just 0 in. That's 4.8 in less than January, 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/h5km/h10km/h15km/h20km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 10km/hFebWind Speed: 10km/hMarWind Speed: 10km/hAprWind Speed: 11km/hMayWind Speed: 15km/hJunWind Speed: 17km/hJulWind Speed: 18km/hAugWind Speed: 18km/hSepWind Speed: 19km/hOctWind Speed: 16km/hNovWind Speed: 13km/hDecWind Speed: 11km/h
Wind Speed
0mph5mph10mph15mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 6mphFebWind Speed: 6mphMarWind Speed: 6mphAprWind Speed: 7mphMayWind Speed: 9mphJunWind Speed: 10mphJulWind Speed: 11mphAugWind Speed: 11mphSepWind Speed: 12mphOctWind Speed: 10mphNovWind Speed: 8mphDecWind Speed: 7mph
Wind Speed

Testa Branca is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/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 18km/h in winter, 16km/h in spring, 10km/h in summer, 12km/h in autumn.Testa Branca is moderately windy, with an average annual wind speed of 9mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is September, averaging 12mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in January, with average winds dropping to 6mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6mph 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 11mph in winter, 10mph in spring, 6mph in summer, 7mph in autumn.

Monthly Climate Data

The table below shows monthly climate averages for Testa Branca 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.The table below shows monthly climate averages for Testa Branca based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). 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
23 °C74 °F
32 °C89 °F
10 km/h6 mph
124 mm4.9 in
0 cm0 in
Feb
23 °C73 °F
31 °C88 °F
10 km/h6 mph
91 mm3.6 in
0 cm0 in
Mar
23 °C74 °F
32 °C89 °F
10 km/h6 mph
80 mm3.1 in
0 cm0 in
Apr
23 °C73 °F
32 °C90 °F
11 km/h7 mph
56 mm2.2 in
0 cm0 in
May
22 °C72 °F
32 °C90 °F
15 km/h9 mph
14 mm0.5 in
0 cm0 in
Jun
21 °C70 °F
32 °C89 °F
17 km/h10 mph
1 mm0.1 in
0 cm0 in
Jul
20 °C68 °F
31 °C89 °F
18 km/h11 mph
1 mm0 in
0 cm0 in
Aug
20 °C69 °F
33 °C91 °F
18 km/h11 mph
1 mm0 in
0 cm0 in
Sep
22 °C71 °F
34 °C93 °F
19 km/h12 mph
1 mm0 in
0 cm0 in
OctCurrent
23 °C74 °F
35 °C95 °F
16 km/h10 mph
33 mm1.3 in
0 cm0 in
Nov
24 °C75 °F
33 °C92 °F
13 km/h8 mph
82 mm3.2 in
0 cm0 in
Dec
24 °C74 °F
33 °C91 °F
11 km/h7 mph
60 mm2.3 in
0 cm0 in