Last updated: August 27, 2025
In September, the average temperature in Stranraer, United Kingdom hovers around 14°C (57°F). While you can expect a comfortable maximum of 20°C (69°F), the nights might dip to a chilly 7°C (45°F). Prepare for a soggy experience with 114 mm (4.5 in) of precipitation spread over 19 days. Don't forget to brace yourself for the high humidity, which averages a muggy 88%!
In September in Stranraer, the average temperature is 14°C (57°F). The maximum can reach up to 20°C (69°F), while the minimum can dip as low as 7°C (45°F). This mild climate makes Stranraer an ideal destination for travelers looking to enjoy comfortable outdoor activities.
In Stranraer in September, the precipitation amount is 114 mm (4.5 in), occurring over the course of 19 days.
In Stranraer in September humidity is 88%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and giving a sense of stickiness that can drain your energy quickly while exploring.
In Stranraer 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 Stranraer.
UV Risk Categories
Weather in Stranraer varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Stranraer, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 7°C (44°F) | 103 mm (4.1 inches) | 87% | low |
February Weather | 6°C (44°F) | 133 mm (5.2 inches) | 86% | low |
March Weather | 7°C (44°F) | 100 mm (3.9 inches) | 86% | moderate |
April Weather | 8°C (47°F) | 42 mm (1.7 inches) | 85% | moderate |
May Weather | 10°C (51°F) | 63 mm (2.5 inches) | 82% | high |
June Weather | 13°C (55°F) | 96 mm (3.8 inches) | 84% | very high |
July Weather | 14°C (58°F) | 113 mm (4.5 inches) | 86% | very high |
August Weather | 15°C (59°F) | 126 mm (4.9 inches) | 86% | high |
September Weather | 14°C (57°F) | 114 mm (4.5 inches) | 88% | moderate |
October Weather | 12°C (53°F) | 160 mm (6.3 inches) | 89% | moderate |
November Weather | 9°C (49°F) | 153 mm (6.0 inches) | 90% | low |
December Weather | 7°C (46°F) | 144 mm (5.7 inches) | 86% | low |