Last updated: August 27, 2025
In Alteveer, Netherlands, the average temperature in September hovers around 15°C (59°F), offering a comfortable climate. However, temperatures can range from a chilly 4°C (39°F) to a warm 31°C (87°F). Expect about 66 mm (2.6 in) of precipitation spread over 11 days, contributing to an average humidity of 83%.
In September in Alteveer, the average temperature is 15°C (59°F). Maximums can reach 31°C (87°F), while minimums can drop as low as 4°C (39°F). Be sure to pack layers to accommodate the temperature fluctuations during your travels.
In Alteveer in September, the precipitation amount is 66 mm (2.6 in) spread over 11 days.
In Alteveer in September humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.
In Alteveer in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Alteveer.
UV Risk Categories
Weather in Alteveer varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Alteveer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 61 mm (2.4 inches) | 88% | low |
| February Weather | 4°C (40°F) | 69 mm (2.7 inches) | 88% | low |
| March Weather | 6°C (43°F) | 73 mm (2.9 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 40 mm (1.6 inches) | 84% | moderate |
| May Weather | 13°C (56°F) | 62 mm (2.4 inches) | 80% | high |
| June Weather | 18°C (64°F) | 78 mm (3.1 inches) | 75% | very high |
| July Weather | 18°C (65°F) | 84 mm (3.3 inches) | 75% | very high |
| August Weather | 18°C (65°F) | 89 mm (3.5 inches) | 75% | high |
| September Weather | 15°C (59°F) | 66 mm (2.6 inches) | 83% | moderate |
| October Weather | 12°C (53°F) | 82 mm (3.2 inches) | 86% | moderate |
| November Weather | 7°C (45°F) | 50 mm (2.0 inches) | 87% | low |
| December Weather | 5°C (41°F) | 81 mm (3.2 inches) | 86% | low |