Dammam weather in July

Name: Dammam
Address: SA

In July, Dammam has daytime highs averaging 40 °C, nights around 30 °C, with 0 wet days, and a sea temperature of 32 °C. Figures are 1991–2020 climate normals.

40.2°C Average high
29.6°C Average low
0days Wet days
0mm Rainfall
31.9°C Sea temperature
14h Daylight

Daily temperatures through July

Daily highDaily low Day of month on the horizontal axis. Highs peak at 40.7 °C and lows bottom out at 28.7 °C.

How July develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days	Avg high	Avg low
1–10 July	40.0 °C	29.0 °C
11–20 July	40.3 °C	29.9 °C
21–31 July	40.2 °C	29.8 °C

Chance of a wet day (over 1 mm) by date in July. Wettest date over the 30 years: July 1, at 0 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure	Typical July	Share of the month
Days above 25 °C	31 of 31	100 %
Days above 30 °C	31 of 31	100 %
Days below 0 °C	0 of 31	0 %
Days with more than 1 mm rain	0 of 31	0 %

Conditions in July

Measure	Average
Mean temperature	35 °C
Record high (1991–2020)	48 °C
Record low (1991–2020)	23 °C
Relative humidity	45 %
Wind speed	26 km/h
Cloud cover	8 %

Where Dammam ranks in July

Ranking	Position	Value
The driest places in Asia in July	2ndof 50	0 mm
The driest places in South America in July	2ndof 50	0 mm
The driest places in the world in July	2ndof 50	0 mm
The warmest places in South America in July	9thof 50	40 °C
Warmest sea temperatures in Asia in July	10thof 50	32 °C
Warmest sea temperatures in the world in July	10thof 50	32 °C

July compared with the months around it

Month	Avg high	Rainfall	Cloud
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 %

See all twelve months for Dammam

July is the warmest month in Dammam.
It is the 2nd driest month of the year.
It ranks 4th for least cloud cover.
Days last about 14 hours from sunrise to sunset.
It rains on 0 of 31 days — 0 % of the month.
Nights are about 11 °C cooler than the middle of the day.
The hottest July day on record since 1991 reached 48 °C, 7.7 °C above the usual daytime high.
Beach score: 47 / 100 — see how this is calculated.

Nearby destinations in July

Destination	Avg high	Sea
Dammam	40 °C	32
Al Muharraq	36 °C	32
Al Jubayl	41 °C	32
Al Hufūf	45 °C	–
Lusail	40 °C	33
Ar Rayyān	42 °C	33
Doha	41 °C	33
Bushehr	36 °C	32

QuestionsJuly in Dammam, answered

How warm is Dammam in July?

Daily highs average 40 °C and nights fall to about 30 °C, a spread of 11 °C between afternoon and dawn. That makes July the 1st warmest month of the year here.

Does it rain much in Dammam in July?

July averages 0 mm of rain, spread over about 0 of the 31 days — 0 % of the month. Cloud cover averages 8 % of the sky.

Is the sea warm enough to swim in July?

The sea averages 32 °C off Dammam in July. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in July?

Dammam averages 14 hours between sunrise and sunset in July. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

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: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. 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.