Last updated: August 27, 2025
In Jondal, Norway, the average temperature in September hovers around 10°C (50°F), making it a cool yet comfortable time of year. Expect temperatures to range from a brisk 1°C (35°F) to a pleasant 21°C (70°F). Be prepared for significant rain, as 292 mm (11.5 in) of precipitation typically falls over 19 days throughout the month, and the air carries a high average humidity of 93%, creating a refreshing atmosphere perfect for cozy indoor activities!
In September in Jondal, the average temperature is 10°C (50°F). The maximum can reach 21°C (70°F), while the minimum can drop to as low as 1°C (35°F). It's advisable to pack layers for your trip to ensure comfort during both the warmer and cooler parts of the day.
In Jondal in September, the precipitation amount is 292 mm (11.5 in) occurring over a span of 19 days.
In Jondal in September humidity is 93%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill enveloping you, making outdoor activities feel heavier and more exhausting, as every step seems to carry a weight that's magnified by the moisture in the air.
In Jondal 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 Jondal for better planning.
UV Risk Categories
Weather in Jondal varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jondal, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 218 mm (8.6 inches) | 98% | low |
| February Weather | -3°C (28°F) | 214 mm (8.4 inches) | 96% | low |
| March Weather | 0°C (32°F) | 224 mm (8.8 inches) | 94% | moderate |
| April Weather | 3°C (37°F) | 148 mm (5.8 inches) | 89% | moderate |
| May Weather | 7°C (45°F) | 106 mm (4.2 inches) | 86% | high |
| June Weather | 13°C (55°F) | 190 mm (7.5 inches) | 83% | high |
| July Weather | 14°C (58°F) | 206 mm (8.1 inches) | 87% | high |
| August Weather | 13°C (56°F) | 226 mm (8.9 inches) | 91% | moderate |
| September Weather | 10°C (50°F) | 292 mm (11.5 inches) | 93% | moderate |
| October Weather | 5°C (42°F) | 316 mm (12.4 inches) | 95% | low |
| November Weather | 2°C (35°F) | 237 mm (9.3 inches) | 97% | low |
| December Weather | -2°C (30°F) | 253 mm (10.0 inches) | 97% | low |