Last updated: August 27, 2025
In May, the average temperature in Barao de Sao Joao, Portugal hovers around 18°C (65°F), offering a pleasant climate for outdoor activities. Expect temperatures to range from a minimum of 9°C (49°F) to a maximum of 31°C (88°F), adding variety to your experience. With an average humidity of 69% and 20 mm (0.8 in) of precipitation spread over 4 days, pack accordingly to make the most of your visit!
In May in Barao de Sao Joao, the average temperature is 18°C (65°F). Maximums can reach 31°C (88°F), while minimums can drop to as low as 9°C (49°F). This makes Barao de Sao Joao an ideal destination for travelers seeking a mild climate with warm days and cooler evenings.
In Barao de Sao Joao in May, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.
In Barao de Sao Joao in May humidity is 69%. With an average temperature of 18°C (65°F), this humidity feels like a warm, damp blanket around you, making travel less comfortable and causing you to feel sticky and fatigued more quickly.
In Barao de Sao Joao in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Barao de Sao Joao.
UV Risk Categories
Weather in Barao de Sao Joao varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Barao de Sao Joao, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (53°F) | 27 mm (1.1 inches) | 80% | moderate |
| February Weather | 13°C (56°F) | 45 mm (1.8 inches) | 73% | moderate |
| March Weather | 14°C (57°F) | 75 mm (2.9 inches) | 71% | high |
| April Weather | 15°C (60°F) | 58 mm (2.3 inches) | 69% | very high |
| May Weather | 18°C (65°F) | 20 mm (0.8 inches) | 69% | very high |
| June Weather | 20°C (67°F) | 8 mm (0.3 inches) | 67% | extreme |
| July Weather | 21°C (70°F) | 3 mm (0.1 inches) | 69% | very high |
| August Weather | 22°C (72°F) | 1 mm (0.0 inches) | 68% | very high |
| September Weather | 21°C (71°F) | 7 mm (0.3 inches) | 71% | very high |
| October Weather | 19°C (66°F) | 32 mm (1.3 inches) | 75% | high |
| November Weather | 15°C (59°F) | 52 mm (2.1 inches) | 78% | moderate |
| December Weather | 13°C (56°F) | 49 mm (1.9 inches) | 81% | moderate |