September
Weather in September
Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's blistering 44.7°C (112.5°F) to a still blisteringly hot 41.4°C (106.5°F). Dammam's average low-temperature for the month of September denotes a significant decline from the daily high, recording at a moderately hot 25.2°C (77.4°F).Humidity
In Dammam, the average relative humidity in September is 37%.Rainfall
Months with rainfall are January through May, September through December. September is the first month it rains. Throughout September, Dammam receives 1mm (0.04") of precipitation. During the entire year, Dammam aggregates up to 86mm (3.39") of precipitation.Sea temperature
In Dammam, the average seawater temperature in September is 32.2°C (90°F).Note: Waters that are warmer than 30°C (86°F) might not provide the cooling effect most people seek during hot days.
Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 05:20 and sunset at 17:59. On the last day of September, sunrise is at 05:32 and sunset at 17:27 +03.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
When does it start to rain?
What is the sea temperature in September?
How many hours of daylight does Dammam have in September?
When are sunrise and sunset in September?
Average temperature in September
Dammam, Saudi Arabia
- Average high temperature in September: 41.4°C
The warmest month (with the highest average high temperature) is July (45°C).
The month with the lowest average high temperature is January (21.1°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is July (29.3°C).
The coldest month (with the lowest average low temperature) is January (9.5°C).
Average humidity in September
Dammam, Saudi Arabia
- Average humidity in September: 37%
The months with the highest relative humidity are January and December (59%).
The month with the lowest relative humidity is June (20%).
Average rainfall in September
Dammam, Saudi Arabia
- Average rainfall in September: 0.5mm
The wettest month (with the highest rainfall) is December (23mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in September
Dammam, Saudi Arabia
- Average rainfall days in September: 0 days
The month with the highest number of rainy days is January (9.3 days).
The months with the least rainy days are June, July, August and September (0 days).
Average sea temperature in September
Dammam, Saudi Arabia
- Average sea temperature in September: 32.2°C
The best month for swimming (with the highest average sea temperature) is August (33.3°C).
The coldest month (with the lowest average sea temperature) is February (18.7°C).
Average daylight in September
Dammam, Saudi Arabia
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
