Last updated: August 23, 2025
In Haljala, Estonia, the average temperature in September hovers around 12°C (55°F), offering a mild climate. You can expect temperatures to range from a cool 2°C (36°F) to a pleasant 24°C (75°F). While enjoying the scenery, be prepared for 79 mm (3.1 in) of precipitation over approximately 15 days, contributing to an average humidity of 89%.
In September in Haljala, the average temperature is 12°C (55°F), with maximums reaching up to 24°C (75°F) and minimums dropping as low as 2°C (36°F). It's an ideal time to visit for those who enjoy mild weather and outdoor activities.
In Haljala in September, the precipitation amount is 79 mm (3.1 in) spread over 15 days.
In Haljala in September, humidity is 89%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that seeps into your bones, making it feel much colder than the thermometer suggests and potentially complicating your travel plans.
In Haljala 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 Haljala for better planning.
UV Risk Categories
Weather in Haljala varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Haljala, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 43 mm (1.7 inches) | 95% | low |
| February Weather | -3°C (27°F) | 47 mm (1.9 inches) | 93% | low |
| March Weather | 0°C (32°F) | 47 mm (1.8 inches) | 90% | moderate |
| April Weather | 4°C (39°F) | 47 mm (1.9 inches) | 87% | moderate |
| May Weather | 9°C (49°F) | 54 mm (2.1 inches) | 73% | moderate |
| June Weather | 16°C (60°F) | 56 mm (2.2 inches) | 77% | high |
| July Weather | 18°C (64°F) | 72 mm (2.8 inches) | 80% | high |
| August Weather | 16°C (62°F) | 97 mm (3.8 inches) | 84% | high |
| September Weather | 12°C (55°F) | 79 mm (3.1 inches) | 89% | moderate |
| October Weather | 8°C (46°F) | 95 mm (3.7 inches) | 92% | low |
| November Weather | 3°C (38°F) | 59 mm (2.3 inches) | 93% | low |
| December Weather | -1°C (31°F) | 61 mm (2.4 inches) | 93% | low |