Climate averages 1991–2020
Dammam weather
in May.
A very hot, very dry month: the 5th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Dammam: daytime highs average 35.3°C and nights cool to about 25.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical May (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 26 min on an average May day.
The nearest other city in this atlas is Al Qaţīf (17 km away). In May its highs average 35.3°C, about as warm as Dammam, with almost no rain (under 1 mm).
Among the 35 cities listed in Saudi Arabia, Dammam ranks joint 19th of 35 for the warmest May highs and joint 4th of 35 for the driest May (rainfall, lowest first). The mean May high of those 35 cities is 34.8°C; Dammam is 0.5°C warmer than that mean.
From May to June, average highs rise by 3.3°C to 38.6°C, and monthly rainfall stays under 1 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Dammam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.6°C12.5°C | 12.5°C | 19 | 3.4 | 10.711 h |
| February | 21.2°C13.7°C | 13.7°C | 12 | 1.9 | 11.211 h |
| March | 24.8°C16.3°C | 16.3°C | 13 | 2.2 | 12.012 h |
| April | 29.8°C20.7°C | 20.7°C | 4.2 | 1.0 | 12.813 h |
| May, selected | 35.3°C25.3°C | 25.3°C | 0.7 | 0.2 | 13.413 h |
| June | 38.6°C28.3°C | 28.3°C | 0 | 0.0 | 13.814 h |
| July | 39.8°C29.8°C | 29.8°C | 0 | 0.0 | 13.614 h |
| August | 39.6°C29.4°C | 29.4°C | 0 | 0.0 | 13.113 h |
| September | 37.7°C27.0°C | 27.0°C | 0 | 0.0 | 12.312 h |
| October | 33.8°C23.9°C | 23.9°C | 0.5 | 0.2 | 11.612 h |
| November | 27.1°C19.5°C | 19.5°C | 18 | 2.2 | 10.911 h |
| December | 21.8°C14.7°C | 14.7°C | 20 | 3.1 | 10.511 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Al Qaţīf in MaySaudi Arabia · 17 kmHigh 35.3°C · Low 25.3°C · 0.7 mm rain
- Khobar in MaySaudi Arabia · 20 kmHigh 36.6°C · Low 25.2°C · 0.6 mm rain
- Manama in MayBahrain · 53 kmHigh 31.0°C · Low 26.7°C · 0.5 mm rain
- Madīnat Ḩamad in MayBahrain · 54 kmHigh 30.6°C · Low 26.7°C · 0.4 mm rain
- Al Muharraq in MayBahrain · 54 kmHigh 31.1°C · Low 26.7°C · 0.5 mm rain
- Ar Rifā‘ in MayBahrain · 56 kmHigh 30.2°C · Low 26.6°C · 0.5 mm rain
- Al Jubayl in MaySaudi Arabia · 81 kmHigh 36.8°C · Low 25.2°C · 1.0 mm rain
- Al Hufūf in MaySaudi Arabia · 130 kmHigh 40.6°C · Low 24.7°C · 1.0 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Dammam) is explained once on the Dammam year overview and on the Sources, method and limits page.
Al Qaţīf lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.