Last updated: August 22, 2025
In September, the average temperature in Longjiang, China hovers around 15°C (60°F), with a minimum dipping to 2°C (36°F) and a peak reaching 32°C (89°F). You can expect 92 mm (3.6 in) of precipitation spread over 10 days, resulting in an average humidity of 82%. Prepare accordingly for a mix of mild weather and occasional showers!
In September in Longjiang, the average temperature is 15°C (60°F). The maximum can reach 32°C (89°F) and the minimum can be as low as 2°C (36°F). This makes it a great time for travelers to experience a comfortable climate, perfect for exploring outdoor activities and enjoying local attractions.
In Longjiang in September, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.
In Longjiang in September humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.
In Longjiang in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Longjiang, you can refer to this Hourly UV Index in Longjiang.
UV Risk Categories
Weather in Longjiang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Longjiang, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -17°C (2°F) | 2 mm (0.1 inches) | 70% | low |
| February Weather | -12°C (10°F) | 4 mm (0.2 inches) | 60% | moderate |
| March Weather | -1°C (30°F) | 5 mm (0.2 inches) | 60% | moderate |
| April Weather | 8°C (47°F) | 23 mm (0.9 inches) | 57% | high |
| May Weather | 16°C (60°F) | 38 mm (1.5 inches) | 58% | very high |
| June Weather | 21°C (69°F) | 97 mm (3.8 inches) | 76% | very high |
| July Weather | 24°C (76°F) | 146 mm (5.8 inches) | 84% | very high |
| August Weather | 21°C (70°F) | 137 mm (5.4 inches) | 85% | very high |
| September Weather | 15°C (60°F) | 92 mm (3.6 inches) | 82% | high |
| October Weather | 6°C (43°F) | 18 mm (0.7 inches) | 77% | moderate |
| November Weather | -5°C (24°F) | 7 mm (0.3 inches) | 61% | low |
| December Weather | -15°C (5°F) | 4 mm (0.1 inches) | 62% | low |