Weather forecast for Lagoa Santa
The next 7 days and what to expect from the climate at each time of year.
The forecast below is updated automatically for the coordinates of Lagoa Santa, in the state of Goiás, Brazil. Keep in mind that the hot-spring lagoon stays at 31 °C all year round, so the bathing is good rain or shine; what changes is the scenery and how busy the town is.
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The climate of Lagoa Santa
The climate is tropical, with two well-defined seasons. The dry season, from May to September, brings clear skies, dry air, hot days and chilly early mornings, when the temperature can drop to around 15 °C and the steam rising off the lagoon creates the most photographed mist in town. The rainy season, from October to March, is hot and humid, with afternoon downpours, a green cerrado savanna and a full-flowing Rio Aporé.
| Period | What it is like | Best for |
|---|---|---|
| May to September (dry season) | Sunshine, little rain, cool nights, morning mist on the lagoon | Those after the classic experience: a soak at dawn and photos. July is high season. |
| October to March (rainy season) | Heat, humidity, late-afternoon rain, green landscape | Those who prefer fewer crowds and do not mind a quick shower. |
| April and October (shoulder months) | Pleasant days, occasional rain | A good balance between weather and crowds. |
Tips for keeping an eye on the weather
- In the dry season, humidity drops sharply: drink water, wear sunscreen and use moisturizer.
- In the rainy season, avoid driving on unpaved back roads at night and check the river level before boat trips.
- Official sources: INMET (Brazil's national weather institute) and CPTEC/INPE.