Weather in May
Temperature
An increase in the average high-temperature marks May, moving from April's hot 34.5°C (94.1°F) to a blisteringly hot 40.6°C (105.1°F). Throughout May nights, Dammam reports a steady thermal contrast from the day, with an average low-temperature of 24.8°C (76.6°F).Humidity
The average relative humidity in May is 26%.Rainfall
May is the last month it rains. During 0.8 rainfall days, in May, Dammam aggregates 3mm (0.12") of precipitation. Throughout the year, there are 38.8 rainfall days, and 86mm (3.39") of precipitation is accumulated.Sea temperature
In May, the average sea temperature is 27.7°C (81.9°F).Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.
Daylight
In Dammam, Saudi Arabia, the average length of the day in May is 13h and 26min.On the first day of the month, sunrise is at 05:02 and sunset at 18:12. On the last day of May, sunrise is at 04:47 and sunset at 18:28 +03.
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Data Sources | Weather Forecasting & Climate
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Average temperature in May
Dammam, Saudi Arabia
- Average high temperature in May: 40.6°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 May: 24.8°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 May
Dammam, Saudi Arabia
- Average humidity in May: 26%
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 May
Dammam, Saudi Arabia
- Average rainfall in May: 3.2mm
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 May
Dammam, Saudi Arabia
- Average rainfall days in May: 0.8 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 May
Dammam, Saudi Arabia
- Average sea temperature in May: 27.7°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 May
Dammam, Saudi Arabia
- Average daylight in May: 13h 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).
Dammam, Saudi Arabia
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