Weather in Goiânia - 14-day forecast

Detailed weather forecast for Goiânia, Brazil: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Goiânia

today☀️ 33°💧 0.5 mm

Sun🌧️ 33°💧 6.3 mm

Mon🌧️ 30°💧 1 mm

Tue🌧️ 32°💧 22.5 mm

Wed🌧️ 29°💧 2.4 mm

Thu🌧️ 31°💧 0.5 mm

Fri🌧️ 31°💧 1.6 mm

Sat☀️ 37°💧 0.8 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Wednesday 9 Sept in Goiânia, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 32°C to 36°C, so it will be exceptionally cool. It is cooler than 96% of similar days.

Saturday 5 Sept

33°Cnear normal

usually 32°C–36°C

night: exceptionally warm rain: more rain than usual wind: exceptionally light

Sunday 6 Sept

33°Ccooler than usual

usually 32°C–36°C

cooler than 70% of similar days

night: exceptionally warm rain: exceptionally wet wind: exceptionally light

Monday 7 Sept

30°Cexceptionally cool

usually 32°C–36°C

cooler than 92% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Tuesday 8 Sept

32°Ccooler than usual

usually 32°C–36°C

cooler than 78% of similar days

night: exceptionally warm rain: exceptionally wet wind: lighter than usual

Wednesday 9 Sept

29°Cexceptionally cool

usually 32°C–36°C

cooler than 96% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Thursday 10 Sept

31°Cexceptionally cool

usually 32°C–36°C

cooler than 92% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

Friday 11 Sept

31°Cexceptionally cool

usually 32°C–36°C

cooler than 91% of similar days

night: exceptionally warm rain: more rain than usual wind: lighter than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 34°C by day. The coolest year was 1984 (28°C) and the warmest was 2021 (38°C). The current forecast averages 31°C - lower than in 84% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Goiânia

Goiânia - 14-day weather forecast infographic

Goiânia 30 & 45-day weather - long-range outlook

Next 15 days · forecast

32°

around 26° at night · days with rain: 8

Weeks 3-4 · avg for September

33°

around 19° at night · rain chance 19%

Weeks 5-7 · avg for October

33°

around 21° at night · rain chance 36%

The 30 & 45-day outlook for Goiânia: the next 15 days are a numerical forecast updated daily - on average 32° by day and 26° at night. Further out we rely on multi-year climate averages: around 33° in September, and about 33° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Goiânia

Saturday5 September 2026

☀️33°clear sky

sunrise 06:21 · sunset 18:11 · night 26° · evening 31° · rain 0.48 mm · humidity 28% · wind 4 m/s · clouds 1%

Sunday6 September 2026

🌧️33°moderate rain

sunrise 06:20 · sunset 18:11 · night 23° · evening 30° · rain 6.29 mm · humidity 31% · wind 4 m/s · clouds 3%

Monday7 September 2026

🌧️30°light rain

sunrise 06:19 · sunset 18:11 · night 23° · evening 27° · rain 1.04 mm · humidity 44% · wind 5 m/s · clouds 29%

Tuesday8 September 2026

🌧️32°heavy rain

sunrise 06:18 · sunset 18:11 · night 23° · evening 22° · rain 22.54 mm · humidity 37% · wind 5 m/s · clouds 6%

Wednesday9 September 2026

🌧️29°light rain

sunrise 06:17 · sunset 18:12 · night 23° · evening 24° · rain 2.43 mm · humidity 46% · wind 5 m/s · clouds 82%

Thursday10 September 2026

🌧️31°light rain

sunrise 06:17 · sunset 18:12 · night 26° · evening 29° · rain 0.54 mm · humidity 42% · wind 5 m/s · clouds 78%

Friday11 September 2026

🌧️31°light rain

sunrise 06:16 · sunset 18:12 · night 28° · evening 30° · rain 1.56 mm · humidity 39% · wind 5 m/s · clouds 53%

Saturday12 September 2026

☀️37°clear sky

sunrise 06:15 · sunset 18:12 · night 26° · evening 30° · rain 0.81 mm · humidity 17% · wind 5 m/s · clouds 34%

Sunday13 September 2026

☀️29°clear sky

sunrise 06:14 · sunset 18:12 · night 25° · evening 30° · rain 2.64 mm · humidity 43% · wind 6 m/s · clouds 8%

Monday14 September 2026

🌧️32°heavy rain

sunrise 06:13 · sunset 18:12 · night 22° · evening 27° · rain 13.05 mm · humidity 35% · wind 5 m/s · clouds 5%

Tuesday15 September 2026

🌧️29°light rain

sunrise 06:13 · sunset 18:12 · night 23° · evening 29° · rain 1.32 mm · humidity 42% · wind 5 m/s · clouds 87%

Wednesday16 September 2026

🌧️33°light rain

sunrise 06:12 · sunset 18:12 · night 29° · evening 31° · rain 0.48 mm · humidity 28% · wind 4 m/s · clouds 1%

Thursday17 September 2026

☀️35°clear sky

sunrise 06:11 · sunset 18:12 · night 28° · evening 32° · rain 0.15 mm · humidity 18% · wind 6 m/s · clouds 7%

Friday18 September 2026

☀️36°clear sky

sunrise 06:10 · sunset 18:12 · night 31° · evening 34° · humidity 15% · wind 5 m/s · clouds 53%

Saturday19 September 2026

🌤️37°scattered clouds

sunrise 06:09 · sunset 18:13 · night 30° · evening 34° · humidity 14% · wind 6 m/s · clouds 29%

UV index in Goiânia - is it safe to sunbathe?

Today the UV index in Goiânia is 8 (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 Goiânia

Air quality in Goiânia is currently good. Fine particulate PM2.5: 17.1 µg/m³, PM10: 18 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Goiânia	17.1	18	good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).

Goiânia weather through the year

Upcoming public holidays in Brazil: Independence Day — 7 September · Our Lady of Aparecida — 12 October · All Souls' Day — 2 November.

Nearby and related places

BrasíliaCampo GrandeCampinasSão PauloManausRio de JaneiroSão Luís

FAQ - Goiânia weather

What is the weather like in Goiânia today?

Today it is about 33° during the day and 26° at night, clear sky.

How far ahead can I check the forecast for Goiânia?

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.