The highest day temperature in May 2026 was 111°F. The lowest night temperature was 82°F. The average values for day and night temperatures during May were 97.3°F и 87.6°F respectivly.

The average sea surface temperature in May 2026 for Dammam was 84.8°F. The maximum and minimum values were 80.4°F and 89.2°F respectively.

Almost all days in May are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in May for Dammam is 0.1 in. This value is relatively stable throughout the year.

The average wind speed in May is 11.6 mph. It makes May one of the most windy months of the year for Dammam.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Dammam in May is 12.7 hours.