Dammam is warmest in July, averaging 43° by day and 31° at night. The wettest month is January with 25 mm, and the year brings about 70 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 22° | 13° | 25 mm | 19° | 10.5 h | Sightseeing |
| February | 23° | 14° | 6 mm | 18° | 11.1 h | Sightseeing |
| March | 28° | 17° | 3 mm | 21° | 11.8 h | Beach weather |
| April | 32° | 21° | 24 mm | 24° | 12.6 h | Beach weather |
| May | 38° | 26° | 3 mm | 28° | 13.3 h | Very hot |
| June | 42° | 30° | 0 mm | 31° | 13.6 h | Very hot |
| July | 43° | 31° | 3 mm | 33° | 13.5 h | Very hot |
| August | 43° | 31° | 0 mm | 34° | 12.9 h | Very hot |
| September | 41° | 29° | 0 mm | 33° | 12.1 h | Very hot |
| October | 36° | 26° | 0 mm | 30° | 11.4 h | Beach weather |
| November | 30° | 21° | 3 mm | 26° | 10.7 h | Beach weather |
| December | 24° | 15° | 3 mm | 21° | 10.3 h | Sightseeing |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: March, April, October and November — highs around 31°, nights no colder than 17°, and at most 24 mm of rain in a month. The sea sits at 21–30° then.
Walking the city: January, February and December — highs of 22–24° and no more than 25 mm of rain a month.
Serious heat: In May, June, July, August and September the average high reaches 43°.