Climate and monthly weather forecast
Dammam, Saudi Arabia

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A big white mosque set in the beautiful Corniche garden park in Dammam, Saudi Arabia, with a clear skyline
A big white mosque set in the beautiful Corniche garden park in Dammam, Saudi Arabia, with a clear skyline

The climate of Dammam

Nestled in Saudi Arabia's eastern province is the city of Dammam, a metropolis kissed by the sun and characterized by the Köppen climate classification as BWh, making it a subtropical desert. The general climate in Dammam leans toward the warm side, with the annual temperature typically oscillating between 9.5°C (49.1°F) as the coldest low, and peaks that reach around 45°C (113°F) in the heat of the summer months.

Surveying the data, a marked rise in temperatures begins in April and persists until October, ushering in the hotter part of the year. Correspondingly, the relative humidity decreases in this period. Conversely, the number of rainfall days and the rainfall inmm exhibits a notable drop, with no precipitation observed from June to September. A significant spike in humidity and drop in temperatures can be noticed during the colder months of November to March, rendering this period more comfortable and less arid.

Dammam's weather does have unique aspects that stand out from the rest of the data. The lack of rainfall between June and September, coupled with temperatures soaring to highs of 45°C (113°F), highlights the city's BWh (desert) classification. Furthermore, in July and August, both the average high and low temperatures push way past the 40°C (104°F) mark, underscoring the distinct desert climate.

The best time to visit Dammam

Given the overall weather conditions, travelers might find the period from November to March to be the most favorable for a journey to Dammam. During these months the temperatures range from cozy lows of 11.5°C (52.7°F) to manageable highs of 29.1°C (84.4°F). Furthermore, relative humidity hovers around 53% to 59%, mitigating the aridity ubiquitous elsewhere in the year. Also, with an average sea temperature ranging from 22.4°C (72.3°F) to 26.4°C (79.5°F), this is the perfect time for beach enthusiasts to take a plunge.

The worst time to visit Dammam

Tourists looking to keep cool should steer clear of Dammam from June to September. In this span, the city confronts the scorching desert sun with no rainfall to relieve the heat. The high temperatures range from a sweltering 41.4°C (106.5°F) to an intense 45°C (113°F), while even the cooler nights stay firmly above 25.2°C (77.4°F) to 29.3°C (84.7°F). The discomfort is further amplified by an exceedingly low relative humidity, creating an arid atmospheric condition that might be challenging for visitors unfamiliar with such a climate.

Spring weather in Dammam

Spring in Dammam, from March to May, starts mildly with average low temperatures of 14.6°C (58.3°F), while daily highs starting at 29.2°C (84.6°F), soaring to reach 40.6°C (105.1°F) by May. Rainfall is sparse, with May witnessing a scant 3mm (0.12") over the course of a mere 0.8 days. The sea heats up during spring, with temperatures ascending from a mild 20.2°C (68.4°F) in March to a balmy 27.7°C (81.9°F) in May.

Summer weather in Dammam

Summer, extending from June through August, witnesses the fiercest burn of the desert sun. Daytime temperatures hover between 41.4°C (106.5°F) to 45°C (113°F), whereas the nights provide mild relief with temperatures staying within the range of 27.5°C (81.5°F) to 29.3°C (84.7°F). The relative humidity plummets to lows of 20%, and with virtually no rainfall throughout these months, the summer in Dammam presents a quintessential desert climate. Sea temperatures peak at around 33.3°C (91.9°F) in August.

Autumn weather in Dammam

Autumn paints a cooling portrait in Dammam. From September to November, daytime temperatures start to reel back to lower figures, dropping from 37.6°C (99.7°F) to 29.1°C (84.4°F). Likewise, nighttime temperatures retreat to more comfortable numbers from 25.2°C (77.4°F) to 16.1°C (61°F). September sees a nominal 1mm (0.04") of rainfall spanning approximately 0 days while November witnesses a leap to 16mm (0.63") over 4.7 days. The average sea temperature remains around 32.2°C (90°F) in September, cooling down to 26.4°C (79.5°F) by November.

Winter weather in Dammam

December to February ushers in winter in Dammam. The highs stay between 21.1°C (70°F) and 23.9°C (75°F), whereas the lows range from 9.5°C (49.1°F) to 11.4°C (52.5°F), offering a pleasant contrast to the scorching summer heat. During this period, the city gets its highest rainfall of the year with 23mm (0.91") occurring over 6.6 days in December and 20mm (0.79") spread across 9.3 days in January. Additionally, the average sea temperature refreshingly dips to 20.1°C (68.2°F) in January, making this season ideal for those seeking milder weather conditions.

Weather in January

Begin the year with January's cooler temperatures, which mark a big shift from Saudi Arabia's typically hot climate. With relative humidity at 59%, there is often a slight chill in the air, and one can expect a high of 21.1°C (70°F) and a low of 9.5°C (49.1°F). Weather in January »

Weather in February

February brings a hint of spring to Dammam with an increase in temperature. The city experiences less rain during this month, with only 7mm (0.28") compared to January's 20mm (0.79"). Higher temperatures alongside lower rainfall contribute to a more arid environment, setting the stage for the oncoming dry months. Weather in February »

Weather in March

As Dammam transitions into spring, temperatures rise significantly. The situation results in a drier climate with a low relative humidity of 41%. March is synonymous with clear skies and temperatures peaking at 29.2°C (84.6°F), initiating the first hints of the approaching summer heat. Weather in March »

Weather in April

April signifies the onset of warmer days in Dammam, and residents begin to feel the typical heat of Saudi Arabia. With a high of 34.5°C (94.1°F), the city enters a transformation into the scorching summer it is well known for. The anticipation of May's much hotter weather is cultivated throughout April, especially as the length of daylight hours continues to expand. Weather in April »

Weather in May

May sees Dammam's climate make a substantial leap into summer, offering extremely hot afternoons. The shift brings many changes, including a substantial decrease in relative humidity, lower rainfall, and an increase in sea temperature. Weather in May »

Weather in June

In June, Dammam turns into a hot summer haven with temperatures soaring to an impressive 43.6°C (110.5°F). As one of the warmest months of the year, expect the heat during the day to be quite intense. Sea temperatures also rise drastically, providing little relief from the heat. Weather in June »

Weather in July

July stands as the pinnacle of summer in Dammam with the highest recorded temperature reaching a blistering 45°C (113°F). This month distinguishes itself as the most heated period of the year, and residents brace themselves for relentless heat. Weather in July »

Weather in August

In August, the city continues to reel under the summer sun, with temperatures only marginally lower than July. With a slight increase in humidity, Dammam’s weather can feel significantly warmer. Although temperatures remain quite high, peaking at 44.7°C (112.5°F), the slightly greater presence of clouds gives residents some respite. Weather in August »

Weather in September

The arrival of September brings the first signs of respite from the intense summer heat. Although temperatures remain relatively high, the weather starts to cool after the summer peak, marking the approaching end of the summer season. Weather in September »

Weather in October

October signals the beginning of Dammam's autumn with a considerable reduction in temperature. A shift from the searing summer heat, October’s weather is noticeably cooler and more comfortable compared to the preceding months. Weather in October »

Weather in November

November offers residents of Dammam a much-needed break with cooler temperatures, fewer daylight hours, and marginally increased rainfall. Offering respite from the intense summer heat, November's cooler climate sets the tone for the rapidly approaching winter. Weather in November »

Weather in December

December marks the arrival of winter in Dammam with temperatures hitting a low of 11.5°C (52.7°F), setting the tone for chillier days and nights. Being the month with the shortest daylight hours, December sees Dammam transform from sweltering heat to cooling climates. Weather in December »
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Frequently asked questions

What time of the year is the coldest in Dammam?

January is the coldest month of the year in Dammam, Saudi Arabia, registering average temperatures as high as 21.1°C (70°F) and as low as 9.5°C (49.1°F).

What is the most humid month in Dammam?

The months with the highest humidity are January and December, with an average relative humidity of 59%.

How many days does it rain in Dammam?

In Dammam, Saudi Arabia, during the entire year, the rain falls for 38.8 days and collects up to 86mm (3.39") of precipitation.

What month is the sea coldest in Dammam?

February is the month with the coldest seawater, with an average sea temperature of 18.7°C (65.7°F).

What is the least humid month in Dammam?

With an average relative humidity of 20%, June is the least humid month.

What is the driest month in Dammam?

June through August are months without rainfall.

When are the longest days in Dammam?

With an average of 13h and 48min of daylight, June has the longest days of the year in Dammam.

What is the hottest time of year in Dammam?

July is the warmest month of the year in Dammam, registering average temperatures as high as 45°C (113°F) and as low as 29.3°C (84.7°F).

When is the sea warmest in Dammam?

August is the month with the warmest seawater, with an average sea temperature of 33.3°C (91.9°F).

When does it rain in Dammam?

January through May, September through December are months with rainfall in Dammam, Saudi Arabia.

What is the wettest month in Dammam?

December is the month with the most rainfall. Rain falls for 6.6 days and accumulates 23mm (0.91") of precipitation.

What is the month with the shortest days in Dammam?

December has the shortest days of the year, with an average of 10h and 30min of daylight.

Is there Daylight Saving Time (DST) in Dammam?

Dammam, Saudi Arabia, does not observe Daylight Saving Time (DST). +03 timezone is used over the entire year.

Average temperature
Dammam, Saudi Arabia

Average temperature - Dammam, Saudi Arabia

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).

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).

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Average humidity
Dammam, Saudi Arabia

Average humidity - Dammam, Saudi Arabia

The months with the highest relative humidity are January and December (59%).
The month with the lowest relative humidity is June (20%).

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Average rainfall
Dammam, Saudi Arabia

Average rainfall - Dammam, Saudi Arabia

The wettest month (with the highest rainfall) is December (23mm).
The driest months (with the least rainfall) are June, July and August (0mm).

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Average rainfall days
Dammam, Saudi Arabia

Average rainfall days - Dammam, Saudi Arabia

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).

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Average sea temperature
Dammam, Saudi Arabia

Average sea temperature - Dammam, Saudi Arabia

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).

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Average daylight
Dammam, Saudi Arabia

Average daylight - Dammam, Saudi Arabia

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).

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Dammam, Saudi Arabia

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