Dammam climate
Dammam (Saudi Arabia) has a hot desert climate (Köppen BWh). The average temperature over the year is 27 °C81 °F, and about 46 mm1.8 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Dammam climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2169 | 1355 | 1762 | 90.3 |
| Feb | 2272 | 1356 | 1864 | 60.2 |
| Mar | 2780 | 1662 | 2271 | 40.1 |
| Apr | 3289 | 2169 | 2679 | 40.2 |
| May | 3799 | 2678 | 3189 | 00.0 |
| Jun | 40104 | 2984 | 3494 | 00.0 |
| Jul | 42107 | 3187 | 3697 | 00.0 |
| Aug | 42107 | 3187 | 3697 | 00.0 |
| Sep | 39103 | 2883 | 3493 | 00.0 |
| Oct | 3595 | 2577 | 3086 | 10.0 |
| Nov | 2882 | 2069 | 2476 | 120.5 |
| Dec | 2373 | 1559 | 1966 | 100.4 |
| Year | 42107 | 1355 | 2781 | 461.8 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 61% | 47% | 3.5 | 10:39 |
| Feb | 60% | 46% | 4.2 | 11:14 |
| Mar | 53% | 45% | 5.0 | 11:56 |
| Apr | 48% | 52% | 5.6 | 12:45 |
| May | 40% | 36% | 6.5 | 13:26 |
| Jun | 37% | 20% | 7.1 | 13:47 |
| Jul | 40% | 30% | 6.7 | 13:39 |
| Aug | 45% | 26% | 6.4 | 13:04 |
| Sep | 49% | 16% | 5.9 | 12:16 |
| Oct | 53% | 21% | 4.9 | 11:29 |
| Nov | 57% | 40% | 3.7 | 10:49 |
| Dec | 62% | 44% | 3.3 | 10:29 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Dammam is like
The warmest month is July, with an average high of 42 °C107 °F and a low of 31 °C87 °F. The coldest is January, when highs average 21 °C69 °F and lows 13 °C55 °F. Seasons are strongly marked: the warmest month is on average 19.5 °C35 °F warmer than the coldest.
It is very dry, with only 46 mm1.8 in of precipitation in an average year. The wettest three-month stretch is November–January, which brings 66% of the annual total. The wettest month is November (12 mm0.5 in), the driest is June (0 mm0.0 in).
Relative humidity ranges from 37% in June to 62% in December. The clearest skies (lowest average cloud amount, 16%) are typical of September. Average wind speed near the ground ranges from 11 km/h (7 mph) in October to 15 km/h (9 mph) in June. Daylight lasts from about 10.5 hours in December to 13.8 hours in June.
Best time to visit Dammam
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 21 °C69 °F to 28 °C82 °F with 4 mm0.1 in to 12 mm0.5 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 42 °C107 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Dammam
- Winter (December–February) — highs 2169 to 23 °C73 °F, lows 1355 to 15 °C59 °F, about 8 mm0.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
- Spring (March–May) — highs 2780 to 37 °C99 °F, lows 1662 to 26 °C78 °F, about 3 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Summer (June–August) — highs 40104 to 42 °C107 °F, lows 2984 to 31 °C87 °F, about 0 mm0.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2882 to 39 °C103 °F, lows 2069 to 28 °C83 °F, about 4 mm0.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Dammam compares
Compared with Riyadh, about 391 km to the southwest, Dammam is on average 1.4 °C2.4 °F warmer and receives 46% more precipitation (46 mm1.8 in vs 31 mm1.2 in). The difference is largest in December (3.8 °C6.9 °F warmer).
Of the 26 places in Saudi Arabia covered by World Climates, Dammam is the 7th warmest by annual mean temperature and the 7th wettest by annual precipitation. See all of them on the Saudi Arabia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Doha (Qatar, BWh), Manama (Bahrain, BWh) and Kuwait City (Kuwait, BWh).
The same NASA POWER grid cell also contains Khobar (pop. 165,799). Their long-term averages in this dataset are essentially the same as for Dammam, so they do not have separate pages.
Nearby places
- Manama 53 km · 27 °C81 °F · 40 mm1.6 in
- Al Muharraq 54 km · 27 °C80 °F · 70 mm2.7 in
- Al Jubayl 81 km · 27 °C81 °F · 47 mm1.8 in
- Al Hufuf 130 km · 27 °C81 °F · 33 mm1.3 in
- Doha 192 km · 28 °C82 °F · 41 mm1.6 in
- Bushehr 291 km · 26 °C79 °F · 316 mm12 in
- Borazjan 334 km · 28 °C82 °F · 303 mm12 in
- Al Ahmadi 355 km · 26 °C79 °F · 48 mm1.9 in
Frequently asked questions
What is the warmest month in Dammam?
July is the warmest month in Dammam, with an average high of 42 °C (107 °F) and an average low of 31 °C (87 °F).
What is the coldest month in Dammam?
January is the coldest month, with an average high of 21 °C (69 °F) and an average low of 13 °C (55 °F).
When does it rain the most in Dammam?
November is the wettest month with about 12 mm (0.5 in) of precipitation; June is the driest with about 0 mm (0.0 in).
What is the best time to visit Dammam?
Judging by long-term averages, the most comfortable months are November–March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.