Last updated: August 22, 2025
In September, the average temperature in Sunwu, China hovers around 13°C (56°F). Expect temperatures to range from a chilly -2°C (29°F) to a warm 28°C (83°F). During this month, precipitation typically accumulates to 88 mm (3.5 in) over about 11 days, while the air maintains a high humidity level of 86%.
In September in Sunwu, the average temperature is 13°C (56°F). Maximum can reach 28°C (83°F) and minimum can be as low as -2°C (29°F). Be prepared for a wide range of temperatures if you're planning a trip during this time.
In Sunwu in September, the total precipitation amount is 88 mm (3.5 in) spread over 11 days.
In Sunwu in September, humidity is 86%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or air-conditioned spaces frequently.
In Sunwu 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 Sunwu.
UV Risk Categories
Weather in Sunwu varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Sunwu, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -20°C (-4°F) | 5 mm (0.2 inches) | 87% | low |
| February Weather | -16°C (3°F) | 6 mm (0.2 inches) | 86% | low |
| March Weather | -5°C (24°F) | 14 mm (0.6 inches) | 79% | moderate |
| April Weather | 5°C (41°F) | 32 mm (1.2 inches) | 66% | moderate |
| May Weather | 12°C (55°F) | 61 mm (2.4 inches) | 69% | high |
| June Weather | 17°C (63°F) | 134 mm (5.3 inches) | 80% | very high |
| July Weather | 22°C (72°F) | 137 mm (5.4 inches) | 87% | very high |
| August Weather | 18°C (66°F) | 175 mm (6.9 inches) | 88% | very high |
| September Weather | 13°C (56°F) | 88 mm (3.5 inches) | 86% | moderate |
| October Weather | 4°C (39°F) | 35 mm (1.4 inches) | 83% | moderate |
| November Weather | -8°C (18°F) | 22 mm (0.9 inches) | 72% | low |
| December Weather | -19°C (-2°F) | 7 mm (0.3 inches) | 81% | low |