The highest day temperature in September 2025 was 74°F. The lowest night temperature was 41°F. The average values for day and night temperatures during September were 62.3°F и 52.1°F respectivly.

The average sea surface temperature in September 2025 for Middlesbrough was 56.8°F. The maximum and minimum values were 55.2°F and 59.8°F respectively.

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation total in September for Middlesbrough is 1.9 in. It makes september one of the least rainy months of the year.

The average wind speed in September is 10.2 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Middlesbrough in September is 6.3 hours.