worldweather35°Ccooler than usual
usually 36°C–38°C
cooler than 83% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
Weather in Teresina - 14-day forecast
Detailed weather forecast for Teresina, Brazil: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Teresina
today☀️
35°💧 0.3 mm
Sun☀️
34°💧 0.9 mm
Mon☀️
37°💧 0.6 mm
Tue🌧️
38°💧 0.2 mm
Wed☀️
38°night 28°
Thu☀️
38°💧 0.2 mm
Fri☀️
38°night 31°
Sat☀️
38°night 33°
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Sunday 6 Sept in Teresina, the forecast high is 34°C. Typical daytime temperatures at this time of year range from 36°C to 38°C, so it will be exceptionally cool. It is cooler than 94% of similar days.
34°Cexceptionally cool
usually 36°C–38°C
cooler than 94% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: typical
37°Cnear normal
usually 36°C–38°C
night: exceptionally warm
rain: more rain than usual
wind: typical
38°Cwarmer than usual
usually 36°C–38°C
warmer than 81% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally light
38°Cnear normal
usually 36°C–38°C
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
38°Cwarmer than usual
usually 36°C–38°C
warmer than 74% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally light
38°Cnear normal
usually 36°C–38°C
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 37°C by day. The coolest year was 1986 (30°C) and the warmest was 2015 (39°C). The current forecast averages 37°C - close to the historical median.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Teresina
Teresina 30 & 45-day weather - long-range outlook
Next 15 days · forecast
38°
around 31° at night · days with rain: 0
Weeks 3-4 · avg for September
38°
around 24° at night · rain chance 11%
Weeks 5-7 · avg for October
38°
around 25° at night · rain chance 12%
The 30 & 45-day outlook for Teresina: the next 15 days are a numerical forecast updated daily - on average 38° by day and 31° at night. Further out we rely on multi-year climate averages: around 38° in September, and about 38° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Teresina
Saturday5 September 2026
☀️35°clear sky
Sunday6 September 2026
☀️34°clear sky
Monday7 September 2026
☀️37°clear sky
Tuesday8 September 2026
🌧️38°light rain
Wednesday9 September 2026
☀️38°clear sky
Thursday10 September 2026
☀️38°clear sky
Friday11 September 2026
☀️38°clear sky
Saturday12 September 2026
☀️38°clear sky
Sunday13 September 2026
☀️39°clear sky
Monday14 September 2026
☀️38°clear sky
Tuesday15 September 2026
🌤️38°scattered clouds
Wednesday16 September 2026
☀️38°clear sky
Thursday17 September 2026
☀️38°clear sky
Friday18 September 2026
☀️38°clear sky
Saturday19 September 2026
☀️38°clear sky
UV index in Teresina - is it safe to sunbathe?
Today the UV index in Teresina is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.
Air quality and smog in Teresina
Air quality in Teresina is currently very good. Fine particulate PM2.5: 11.5 µg/m³, PM10: 13 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Teresina | 11.5 | 13 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).
Teresina weather through the year
Warmest, driest months on average: January, February, March, May.
Upcoming public holidays in Brazil: Independence Day — 7 September · Our Lady of Aparecida — 12 October · All Souls' Day — 2 November.
Nearby and related places
FAQ - Teresina weather
What is the weather like in Teresina today?
Today it is about 35° during the day and 31° at night, clear sky.
How far ahead can I check the forecast for Teresina?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.