Last updated: August 22, 2025
In Santa Maria da Boa Vista, Brazil, the average temperature in September is a warm 27°C (81°F), with lows dipping to 18°C (65°F) and highs soaring to a sizzling 39°C (102°F). You can expect minimal rainfall, with only 5 mm (0.2 in) of precipitation spread across 0 days, while the average humidity sits comfortably at 68%. Enjoy the warmth!
In September in Santa Maria da Boa Vista, the average temperature is 27°C (81°F). Maximums can reach 39°C (102°F) and minimums can be as low as 18°C (65°F). This makes it an ideal time for travelers seeking warm weather and a pleasant getaway.
In Santa Maria da Boa Vista in September, the precipitation amount is 5 mm (0.2 in) during a span of 0 days.
In Santa Maria da Boa Vista in September, humidity is 68%. With an average temperature of 27°C (81°F), this humidity feels like a thick, warm blanket wrapping around you, making outdoor activities a bit uncomfortable but great for enjoying the local culture while sampling refreshing drinks and seeking shade.
In Santa Maria da Boa Vista in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Santa Maria da Boa Vista.
UV Risk Categories
Weather in Santa Maria da Boa Vista varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Maria da Boa Vista, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 29°C (84°F) | 22 mm (0.9 inches) | 84% | extreme |
| February Weather | 28°C (83°F) | 73 mm (2.9 inches) | 89% | extreme |
| March Weather | 28°C (83°F) | 86 mm (3.4 inches) | 91% | extreme |
| April Weather | 28°C (82°F) | 58 mm (2.3 inches) | 92% | extreme |
| May Weather | 27°C (80°F) | 20 mm (0.8 inches) | 90% | extreme |
| June Weather | 26°C (78°F) | 13 mm (0.5 inches) | 87% | extreme |
| July Weather | 25°C (77°F) | 11 mm (0.4 inches) | 79% | extreme |
| August Weather | 26°C (79°F) | 5 mm (0.2 inches) | 74% | extreme |
| September Weather | 27°C (81°F) | 5 mm (0.2 inches) | 68% | extreme |
| October Weather | 29°C (84°F) | 5 mm (0.2 inches) | 62% | extreme |
| November Weather | 29°C (85°F) | 31 mm (1.2 inches) | 55% | extreme |
| December Weather | 29°C (84°F) | 36 mm (1.4 inches) | 58% | extreme |