Teresina weather and climate in 2025
Day
35 °C
Night
21 °C
Sea
0 °C
Precipitation
8 mm
in month
Rainy days
4 days
in month
Daylight
12 hours
average
Sunshine
9 hours
average
Humidity
59 %
Day
35 °C
Night
21 °C
Sea
0 °C
Precipitation
8 mm
in month
Rainy days
4 days
in month
Daylight
12 hours
average
Sunshine
9 hours
average
Humidity
59 %
Overview: Teresina
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Weather overview for Teresina
Weather overview
Teresina, the scorching capital of Piauí, Brazil, is distinguished by its high temperatures and distinct dry and wet seasons. The mercury soars to an average peak of 37 °C (98 °F) in October, while July offers a slightly less intense heat with an average high of 34 °C (93 °F). Rainfall varies significantly across the year, with the wettest month of March seeing up to 318 mm (12.50 in), contrasting sharply with the parched month of August which only experiences a nominal 8 mm (0.33 in). Despite the absence of sea temperatures, as Teresina is inland, the city's river can offer some respite during the hottest times of the year.
January weather
January sets the stage for Teresina's wet season, bringing warm nights at about 23 °C (74 °F). Daytime temperatures hit an average of 32 °C (90 °F), ensuring a balmy start to the year. An array of 19 days tells a tale of intermittent clouds breaking up the heat with substantial rain.
February weather
As February unfolds, Teresina is graced with warm nights averaging 23 °C (73 °F), while the daytime heat eases slightly to 31 °C (88 °F). Expect a humid month with an 82 % of relative humidity and prepare yourself for 20 wet days.
March weather
Entering March, Teresina experiences the zenith of its rainy season with an impressive 318 mm (12.50 in) of rainfall. Temperatures at night stay around 22 °C (72 °F), and the day heats up to 32 °C (89 °F) on average. Expect rain to be a common companion with 24 days.
April weather
April maintains Teresina's wet-season patterns, characterized by a relative humidity of 83 %. Expect nighttime temperatures of about 22 °C (72 °F) and daytime highs reaching 32 °C (89 °F) with ongoing showers over 22 days.
May weather
The wet season's curtain call arrives in May as Teresina begins to dry out with only 113 mm (4.45 in) of rainfall. While evenings bring a cooler 22 °C (72 °F), daytime average highs are on the rise at 33 °C (91 °F), signaling a decrease in 15 wet days.
June weather
June in Teresina marks a notable shift towards the dry season, illuminated by around 74 of sunlight. The night cools down to 21 °C (69 °F) on average, and daytime temperatures are notably high at 33 °C (91 °F). Out of the wet season, one can appreciate the reduced rainfall, with just 23 mm (0.91 in) appearing on 8 days.
July weather
July welcomes the dry season with open arms in Teresina, offering up to 80 of sunshine. The nighttime still remains on the cooler side at 21 °C (69 °F), but the city brims with heat as daytime temperatures soar to 34 °C (93 °F).
August weather
August's fierce reputation in Teresina is not unfounded, with daylight hours peaking at 35 °C (95 °F) and nights offering little relief at 21 °C (69 °F). August impressively measures the least amount of rain at just 8 mm (0.33 in) during the dry season's crescendo.
September weather
As September arrives, Teresina remains under the grip of the dry season, with intense daylight warming up to 37 °C (98 °F) and soothing evenings around 23 °C (73 °F). Only a smattering of rainfall, 11 mm (0.45 in), trickles down over a sparse number of 4 days.
October weather
October in Teresina presents the pinnacle of heat, with daily maximum temperatures averaging 37 °C (98 °F). While the night offers a marginal dip to 24 °C (75 °F), precipitation begins to hint at a change with an increase to 23 mm (0.91 in) spread across 5 days.
November weather
The heat in Teresina shows little sign of relenting in November, with daytime highs rolling in at 36 °C (97 °F), though evenings offer a slight cooling to 24 °C (75 °F). A gradual uptick in rainfall, reaching 53 mm (2.08 in), is witnessed across 7 days.
December weather
December bids the year farewell with balmy nights at 24 °C (74 °F) and hot daylight hours at 35 °C (94 °F) in Teresina. Growth in rain, totaling 119 mm (4.69 in), graces a mounting 12 number of days.
FAQs
What type of clothing is suitable for Teresina in January?
Lightweight and breathable clothing is ideal for Teresina in January. Aim for loose-fitting garments, preferably cotton or linen to deal with the heat and humidity.
Is Teresina cooler in February compared to January?
Teresina offers a slight reprieve in February. The temperatures are a touch cooler than January's highs, but the city retains its warm and humid character.
What are the prospects of rain in Teresina during March?
March is Teresina's wettest month. Prepare for substantial rainfall across a significant number of days, which may impact your daily plans.
How does April's weather in Teresina compare to the earlier wet season months?
April's weather in Teresina is quite similar to March, with persistent rain, although slightly less intense, and consistently high temperatures.
As Teresina transitions out of the wet season, how does this affect outdoor sports in May?
The reduction in rainfall during May opens up more opportunities for outdoor sports and activities as the fields and roads begin to dry in Teresina.
June sees a decrease in rainfall, but how hot does it get in Teresina during the day?
Though rainfall subsides in June, the daytime heat in Teresina continues to climb, reaching scorching highs that call for constant hydration and sun protection.
What impact does the dry season have on daily life in Teresina during July?
The impact of the dry season in July is quite palpable, with a dramatic fall in rainfall and the landscape becoming parched, affecting everything from agriculture to leisure activities in Teresina.
Does the lack of rain in Teresina during August affect the air quality?
Yes, the lack of rain in August can lead to dustier conditions and poorer air quality, as the dry earth is more prone to dispersing particles into the Teresina air.
What is the likelihood of experiencing a cool day in Teresina during September?
Cool days in Teresina during September are rare treats, as the climate generally remains searingly hot with minimal chances for a reprieve from the high temperatures.
Is October the hottest month in Teresina, and how do residents adapt?
Indeed, October stands as Teresina's hottest month. To cope, citizens tend to remain indoors during the hottest parts of the day and use cooling methods such as fans or air conditioning more frequently.
How do the steadily increasing rainy days affect the climate in Teresina during November?
The increase in rainy days in November brings some relief from the relentless heat, as the showers tend to cool down the atmosphere slightly in Teresina.
Does December mark a shift in Teresina's weather, and what should be expected?
December sees a noticeable shift towards the wet season, with more frequent rains cooling the streets and bringing a wave of freshness to Teresina.
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