Last updated: August 27, 2025
In Santo Andre, Portugal, the average temperature in May is a comfortable 18°C (65°F), with minimums dipping to 9°C (49°F) and maximums soaring to 32°C (90°F). During this month, you can expect 27 mm (1.1 in) of precipitation spread over about 4 days, while the average humidity levels sit at a balmy 69%.
In May in Santo Andre, the average temperature is 18°C (65°F). The maximum can reach 32°C (90°F) and the minimum can be as low as 9°C (49°F). This climate makes Santo Andre an ideal destination for travelers seeking pleasant weather and outdoor activities during this time of year.
In Santo Andre in May, the total precipitation amount is 27 mm (1.1 in) over a span of 4 days.
In Santo Andre 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 Santo Andre 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 Santo Andre.
UV Risk Categories
Weather in Santo Andre varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santo Andre, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (52°F) | 31 mm (1.2 inches) | 80% | moderate |
| February Weather | 13°C (55°F) | 55 mm (2.2 inches) | 73% | moderate |
| March Weather | 14°C (57°F) | 82 mm (3.2 inches) | 71% | high |
| April Weather | 15°C (59°F) | 70 mm (2.7 inches) | 69% | very high |
| May Weather | 18°C (65°F) | 27 mm (1.1 inches) | 69% | very high |
| June Weather | 19°C (67°F) | 9 mm (0.4 inches) | 67% | extreme |
| July Weather | 21°C (70°F) | 3 mm (0.1 inches) | 69% | very high |
| August Weather | 21°C (71°F) | 2 mm (0.1 inches) | 68% | very high |
| September Weather | 21°C (70°F) | 13 mm (0.5 inches) | 71% | very high |
| October Weather | 18°C (65°F) | 45 mm (1.8 inches) | 75% | high |
| November Weather | 15°C (59°F) | 62 mm (2.4 inches) | 78% | moderate |
| December Weather | 13°C (55°F) | 52 mm (2.0 inches) | 81% | moderate |