Last updated: June 24, 2025
In September, the average temperature in Scarborough, United States is a pleasant 18°C (64°F). Expect a minimum of 9°C (48°F) and a maximum of 27°C (81°F), offering a range of comfortable weather. However, be prepared for some rain, as there is an average precipitation of 81 mm (3.2 in) over 8 days. With humidity levels hovering around 71%, it’s a month that beautifully balances warmth and a refreshing atmosphere.
In September in Scarborough, the average temperature is 18°C (64°F). The maximum can reach 27°C (81°F), while the minimum can drop to as low as 9°C (48°F). This pleasant climate makes Scarborough an ideal destination for travelers seeking moderate weather and outdoor activities.
In Scarborough in September, the precipitation amount is 81 mm (3.2 in) over the course of 8 days.
In Scarborough in September, humidity is 71%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making traveling a bit sticky but still pleasant as the warmth envelops you, urging you to explore the vibrant surroundings while staying hydrated.
In Scarborough in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Scarborough.
UV Risk Categories
Weather in Scarborough varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Scarborough, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 92 mm (3.6 inches) | 86% | low |
| February Weather | -1°C (31°F) | 102 mm (4.0 inches) | 84% | moderate |
| March Weather | 2°C (35°F) | 93 mm (3.6 inches) | 82% | moderate |
| April Weather | 6°C (44°F) | 146 mm (5.7 inches) | 80% | high |
| May Weather | 11°C (53°F) | 89 mm (3.5 inches) | 72% | very high |
| June Weather | 17°C (62°F) | 75 mm (3.0 inches) | 72% | very high |
| July Weather | 20°C (69°F) | 106 mm (4.2 inches) | 67% | very high |
| August Weather | 21°C (69°F) | 66 mm (2.6 inches) | 66% | very high |
| September Weather | 18°C (64°F) | 81 mm (3.2 inches) | 71% | high |
| October Weather | 13°C (55°F) | 158 mm (6.2 inches) | 78% | moderate |
| November Weather | 6°C (43°F) | 123 mm (4.9 inches) | 84% | moderate |
| December Weather | 1°C (35°F) | 141 mm (5.6 inches) | 81% | low |