United Arab Emirates
Long term weather forecast
Long term weather forecast

September weather forecast and Climate
Dubai, United Arab Emirates

As temperatures begin to fall after the height of the summer there is a sting in the tail for residents of coastal cities. Sea temperatures reach a peak at the end of August and it is therefore during this time that the potential for warm, humid air to be advected to the coast reaches a maximum. September is far from being the most humid month but it has the highest humidity of the hot summer months. For this reason September is extremely humid and is one of the months with a high occurrence of fog. Night time temperatures begin to drop into the upper 20’s °C and fog will often form in the early morning hours. Maximum temperatures can still occasionally reach extremes of 45°C with extreme minimum’s around 22°C. Sea temperatures begin to fall later in the month with the mean for the month of around 32°C.
  • Average high temperature in September: 38.9°C

Warmest month (with highest average high temperature) is August (41.3°C).
Month with lowest average high temperature is January (24°C).

  • Average low temperature in September: 27.5°C

Month with highest average low temperature is August (30.2°C).
Coldest month (with lowest average low temperature) is January (14.3°C).

  • Average humidity in September: 60%

Months with highest relative humidity are January and February (65%).
Month with lowest relative humidity is May (53%).

  • Average rainfall in September: 0mm

Wettest month (with highest rainfall) is February (25mm).
Driest months (with lowest rainfall) are June, August and September (0mm).

  • Average rainfall days in September: 0.1 days

Month with highest number of rainy days is March (5.8 days).
Month with lowest number of rainy days is June (0 days).

  • Average sea temperature in September: 33.1°C

Best month for swimming (with highest average sea temperature) is August (33.5°C).
Coldest month (with lowest average sea temperature) is February (21.9°C).

  • Average daylight in September: 12h

Months with longest days are June and July (Average daylight: 14).
Months with shortest days are January, February, November and December (Average daylight: 11).

  • Average sunshine in September: 10.3h

Month with most sunshine is June (Average sunshine: 11.4).
Months with least sunshine are January, February, March and December (Average sunshine: 8.2).

  • Average UV index in September: 11

Months with highest UV index are April, May, June, July and August (UV index 12).
Month with lowest UV index is December (UV index 5).