Orlando Weather in September
Orlando, Florida sees a slight easing of hot and rainy weather during September, although the humidity remains high. This is the month that Orlando is most likely to see a hurricane.
This page gives detailed information on the typical September temperature, precipitation, sun, humidity, wind and storms for Orlando. The numbers here are historical averages based on climate data gathered at the Orlando Executive Airport, located near downtown Orlando.
|90 °F||September average high||32 °C|
|74 °F||September average low||23 °C|
|17 days||90 °F max. or more (32 °C)|
|2 days||70 °F min. or less (21 °C)|
Usually every day in September warms to over 80 degrees Fahrenheit (27 degrees Celsius) at Orlando. Temperatures above 100 °F (38 °C) are not expected here this month.
September does not normally get as cold as 60 °F (16 °C).
|6.6 in||total precipitation||166 mm|
|15 days||of rain|
Half the time, Orlando receives 4.6 to 7.9 inches (117 to 201 mm) of rainfall in September. One in four years has drier weather, while another one in four is wetter.
|4 days||clear skies|
The sun's rays reach the ground in Orlando during 61 percent of daylight hours on average in September, for a total of 225 hours in the month. Typically on 4 days this month the sky is mainly clear, with at most 30 percent cloud cover.
Sunlight in September at Orlando lasts for 12 hours and 18 minutes a day on average. The longest day of the month is the 1st with 12 hours and 43 minutes of daylight. By the end of the month, the days have shortened to 11:54 from sunrise to sunset. These durations can vary by a minute or two from year to year.
|79 %||September average humidity|
September is one of the most humid months for Orlando. The relative humidity usually peaks at 92 percent in the morning then drops to 61 percent by early afternoon.
|Local Time||1 am||4 am||7 am||10 am||1 pm||4 pm||7 pm||10 pm||Humidity %||90||92||91||71||61||65||78||86|
|7.7 mph||September wind speed average||12.4 kph|
September is less windy than most other months in Orlando.
|4 days||rainfall of 0.5 inches (13 mm) or more|
|10 days||with thunderstorms in September|
|12 %||chance a named storm approaches|
There's a six percent probability that a hurricane will approach within 100 miles (165 km) of Orlando during September. The chance of a major category 3 to 5 hurricane reaching the area is two percent.
The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals. The named storm probabilities come from the Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division.