Last updated: June 24, 2025
The average temperature in Middletown, United States during September is a pleasant 21°C (70°F). However, temperatures can vary significantly, with minimums dropping to 4°C (40°F) and maximums soaring up to 35°C (94°F). Expect around 107 mm (4.2 in) of precipitation spread over 9 days, contributing to an average humidity level of 68%.
In September in Middletown, the average temperature is 21°C (70°F), with maximums reaching 35°C (94°F) and minimums dropping to as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures during their visit, ensuring they pack accordingly for both warm and cool conditions.
In Middletown in September, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.
In Middletown in September humidity is 68%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making the air feel slightly heavy and sticky, which can be quite exhausting for travelers.
In Middletown in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Middletown.
UV Risk Categories
Weather in Middletown varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Middletown, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 2°C (35°F) | 61 mm (2.4 inches) | 86% | moderate |
February Weather | 4°C (39°F) | 95 mm (3.7 inches) | 86% | moderate |
March Weather | 7°C (44°F) | 90 mm (3.6 inches) | 86% | high |
April Weather | 13°C (55°F) | 100 mm (3.9 inches) | 84% | very high |
May Weather | 18°C (65°F) | 134 mm (5.3 inches) | 78% | very high |
June Weather | 23°C (73°F) | 111 mm (4.4 inches) | 79% | very high |
July Weather | 26°C (79°F) | 138 mm (5.4 inches) | 70% | very high |
August Weather | 24°C (76°F) | 114 mm (4.5 inches) | 59% | very high |
September Weather | 21°C (70°F) | 107 mm (4.2 inches) | 68% | very high |
October Weather | 16°C (60°F) | 99 mm (3.9 inches) | 80% | high |
November Weather | 7°C (45°F) | 88 mm (3.5 inches) | 86% | moderate |
December Weather | 4°C (39°F) | 94 mm (3.7 inches) | 85% | moderate |