Last updated: August 23, 2025
In September, the average temperature in Kohtla-Jaerve, Estonia is a comfortable 13°C (55°F). Expect a range from a chilly 3°C (38°F) to a pleasant 25°C (77°F). Be prepared for 76 mm (3.0 in) of precipitation spread over 15 days, contributing to a high average humidity of 89%.
In September in Kohtla-Jaerve, the average temperature is 13°C (55°F). Maximum temperatures can reach as high as 25°C (77°F), while minimums can drop to a chilly 3°C (38°F). It's advisable to pack layers to stay comfortable during your travels.
In Kohtla-Jaerve in September, the precipitation amount is 76 mm (3.0 in), recorded over a span of 15 days.
In Kohtla-Jaerve in September humidity is 89%. With an average temperature of 13°C (55°F), this humidity feels like a thick, damp blanket enveloping you, making every step feel heavier and each breath a bit more laborious for traveling.
In Kohtla-Jaerve in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Kohtla-Jaerve for better planning.
UV Risk Categories
Weather in Kohtla-Jaerve varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kohtla-Jaerve, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 44 mm (1.7 inches) | 95% | low |
| February Weather | -3°C (27°F) | 47 mm (1.8 inches) | 93% | low |
| March Weather | 0°C (32°F) | 45 mm (1.8 inches) | 90% | moderate |
| April Weather | 4°C (40°F) | 46 mm (1.8 inches) | 87% | moderate |
| May Weather | 10°C (50°F) | 60 mm (2.3 inches) | 73% | moderate |
| June Weather | 16°C (62°F) | 45 mm (1.8 inches) | 77% | high |
| July Weather | 18°C (65°F) | 70 mm (2.8 inches) | 80% | high |
| August Weather | 17°C (63°F) | 89 mm (3.5 inches) | 84% | high |
| September Weather | 13°C (55°F) | 76 mm (3.0 inches) | 89% | moderate |
| October Weather | 8°C (46°F) | 88 mm (3.5 inches) | 92% | low |
| November Weather | 4°C (39°F) | 59 mm (2.3 inches) | 93% | low |
| December Weather | -1°C (31°F) | 63 mm (2.5 inches) | 93% | low |