Last updated: August 27, 2025
In September, the average temperature in Santo Antonio dos Olivais, Portugal is a pleasant 20°C (69°F). You can expect temperatures to range from a cool 9°C (49°F) to a warm 37°C (98°F). During this month, the region experiences about 36 mm (1.4 in) of precipitation spread over 4 days, with an average humidity level of 71%. Perfect for those who enjoy mild temperatures and moderate humidity!
In September in Santo Antonio dos Olivais, the average temperature is 20°C (69°F). Maximums can reach 37°C (98°F) and minimums can be as low as 9°C (49°F). This weather makes Santo Antonio dos Olivais an ideal destination for travelers looking to enjoy a pleasant climate while exploring its attractions.
In Santo Antonio dos Olivais in September, the precipitation amount is 36 mm (1.4 in) over the course of 4 days.
In Santo Antonio dos Olivais in September, humidity is 71%. With an average temperature of 20°C (69°F), this humidity feels like a warm, enveloping blanket that can quickly lead to discomfort for travelers. Staying hydrated and taking breaks in shaded areas becomes essential to enjoy sightseeing without feeling fatigued.
In Santo Antonio dos Olivais in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Santo Antonio dos Olivais.
UV Risk Categories
Weather in Santo Antonio dos Olivais varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santo Antonio dos Olivais, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (48°F) | 63 mm (2.5 inches) | 87% | moderate |
| February Weather | 11°C (53°F) | 88 mm (3.5 inches) | 81% | moderate |
| March Weather | 12°C (55°F) | 117 mm (4.6 inches) | 78% | high |
| April Weather | 14°C (58°F) | 120 mm (4.7 inches) | 79% | very high |
| May Weather | 17°C (63°F) | 56 mm (2.2 inches) | 78% | very high |
| June Weather | 19°C (66°F) | 31 mm (1.2 inches) | 71% | extreme |
| July Weather | 21°C (70°F) | 8 mm (0.3 inches) | 63% | very high |
| August Weather | 21°C (70°F) | 9 mm (0.3 inches) | 64% | very high |
| September Weather | 20°C (69°F) | 36 mm (1.4 inches) | 71% | very high |
| October Weather | 17°C (63°F) | 91 mm (3.6 inches) | 79% | high |
| November Weather | 13°C (55°F) | 126 mm (5.0 inches) | 86% | moderate |
| December Weather | 11°C (52°F) | 112 mm (4.4 inches) | 87% | low |