Dammam climate

Name: Dammam
Address: SA

Dammam is warmest in July, with average highs of 40 °C, and coldest in January, when nights average 12 °C. January is the wettest month (20 mm) and June the driest (0 mm). Figures are 1991–2020 climate normals.

Across a full year Dammam averages 87 mm of rain and 257 days above 25 °C.

Saudi Arabia · population 1,252,523 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 40 °C
Coldest month January 12 °C
Driest month June 0 mm
Wettest month January 20 mm
Least cloud June 3 % cloud
Hottest on record July 48 °C
Coldest on record January 3.7 °C
Warmest sea August 33 °C

What to expectDammam through the year

Dammam has a clear annual cycle: average daily highs run from 20 °C in January to 40 °C in July, a swing of 19 °C in mean temperature across the year.

Counted across a normal year, 257 days a year reach 25 °C, 205 of them reach 30 °C. The warmest reading in the 1991–2020 record is 48 °C, in July.

Rain is spread fairly evenly through the year, from 0 mm in June to 20 mm in January. There is no dry season to aim for.

The sea off Dammam is warmest in August at 33 °C and coldest in February at 19 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	19.7 °C	20 mm	32 %
February	21.3 °C	12 mm	28 %
March	25.0 °C	12 mm	30 %
April	30.2 °C	4 mm	34 %
May	35.7 °C	1 mm	18 %
June	38.9 °C	0 mm	3 %
July	40.2 °C	0 mm	8 %
August	39.9 °C	under 1 mm	7 %
September	38.0 °C	under 1 mm	3 %
October	34.0 °C	1 mm	10 %
November	27.2 °C	18 mm	24 %
December	21.9 °C	20 mm	29 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	19.7 °C	12.2 °C	16.0 °C	30.9 °C	3.7 °C	1	0
February	21.3 °C	13.3 °C	17.3 °C	33.7 °C	4.7 °C	3	0
March	25.0 °C	16.0 °C	20.5 °C	38.1 °C	7.7 °C	14	2
April	30.2 °C	20.5 °C	25.3 °C	44.0 °C	13.3 °C	29	15
May	35.7 °C	25.0 °C	30.5 °C	45.1 °C	18.9 °C	31	30
June	38.9 °C	28.0 °C	33.6 °C	47.1 °C	21.9 °C	30	30
July	40.2 °C	29.6 °C	34.8 °C	47.9 °C	23.1 °C	31	31
August	39.9 °C	29.1 °C	34.5 °C	46.9 °C	24.0 °C	31	31
September	38.0 °C	26.6 °C	32.3 °C	45.8 °C	20.6 °C	30	30
October	34.0 °C	23.6 °C	28.8 °C	44.2 °C	16.6 °C	31	30
November	27.2 °C	19.1 °C	23.3 °C	36.6 °C	10.2 °C	22	6
December	21.9 °C	14.3 °C	18.1 °C	30.7 °C	6.3 °C	3	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	20 mm	3	11 h/day	32 %	68 %	24 km/h	19.5 °C
February	12 mm	2	11 h/day	28 %	65 %	26 km/h	18.5 °C
March	12 mm	2	12 h/day	30 %	60 %	26 km/h	19.8 °C
April	4 mm	1	13 h/day	34 %	53 %	25 km/h	22.7 °C
May	1 mm	0	13 h/day	18 %	45 %	25 km/h	26.6 °C
June	0 mm	0	14 h/day	3 %	41 %	27 km/h	29.8 °C
July	0 mm	0	14 h/day	8 %	45 %	26 km/h	31.9 °C
August	under 1 mm	0	13 h/day	7 %	54 %	23 km/h	33.3 °C
September	under 1 mm	0	12 h/day	3 %	58 %	22 km/h	32.3 °C
October	1 mm	0	12 h/day	10 %	62 %	20 km/h	30.0 °C
November	18 mm	2	11 h/day	24 %	64 %	22 km/h	26.4 °C
December	20 mm	3	10 h/day	29 %	69 %	23 km/h	22.3 °C

How Dammam compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Dammam	40 °C	12 °C	87 mm	257
Al Muharraq · Bahrain	36 °C	15 °C	67 mm	230
Al Jubayl · Saudi Arabia	41 °C	11 °C	101 mm	258
Al Hufūf · Saudi Arabia	45 °C	8.7 °C	70 mm	279
Lusail · Qatar	40 °C	14 °C	61 mm	274
Ar Rayyān · Qatar	42 °C	13 °C	61 mm	287
Doha · Qatar	41 °C	14 °C	61 mm	280

Where Dammam ranks

Ranking	Position	Value
Best beach destinations in Asia in November	1stof 50	100/100
Best beach destinations in the world in November	1stof 50	100/100
The driest places in Asia in July	2ndof 50	0 mm
The driest places in Asia in June	2ndof 50	0 mm
The driest places in South America in July	2ndof 50	0 mm
The driest places in South America in June	2ndof 50	0 mm

Planning a trip? See the best time to visit Dammam.

QuestionsCommon questions about Dammam’s climate

When is the best time to visit Dammam?

That depends on what you want, so the honest answer is a comparison rather than a single month. February, March, December sit closest to 20 °C on average, July is the warmest month and June the driest. The month-by-month table above has the full picture.

How hot does Dammam get?

In July, the warmest month, daily highs average 40 °C. About 205 days a year pass 30 °C. The highest value in the 1991–2020 record is 48 °C.

How cold does it get in winter?

Nights average 12 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Dammam?

January, averaging 20 mm over 3 days with rain. The driest month is June with 0 mm. The year as a whole averages 87 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Dammam rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.