Ar Rayyān climate

Name: Ar Rayyān
Address: QA

Ar Rayyān is warmest in July, with average highs of 42 °C, and coldest in January, when nights average 13 °C. December is the wettest month (14 mm) and June the driest (0.02 mm). Figures are 1991–2020 climate normals.

Across a full year Ar Rayyān averages 61 mm of rain and 287 days above 25 °C.

Qatar · population 272,465 · 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 42 °C
Coldest month January 13 °C
Driest month June 0 mm
Wettest month December 14 mm
Least cloud June 4 % cloud
Hottest on record July 49 °C
Coldest on record January 3.0 °C
Warmest sea August 34 °C

What to expectAr Rayyān through the year

Ar Rayyān has a clear annual cycle: average daily highs run from 22 °C in January to 42 °C in July, a swing of 19 °C in mean temperature across the year.

Counted across a normal year, 287 days a year reach 25 °C, 228 of them reach 30 °C. The warmest reading in the 1991–2020 record is 49 °C, in July.

Rain is spread fairly evenly through the year, from 0 mm in June to 14 mm in December. There is no dry season to aim for.

The sea off Ar Rayyān is warmest in August at 34 °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	21.7 °C	11 mm	30 %
February	23.6 °C	12 mm	25 %
March	27.5 °C	12 mm	30 %
April	33.3 °C	4 mm	30 %
May	39.1 °C	under 1 mm	14 %
June	41.5 °C	under 1 mm	4 %
July	42.4 °C	under 1 mm	13 %
August	42.2 °C	under 1 mm	11 %
September	39.7 °C	under 1 mm	4 %
October	35.5 °C	under 1 mm	8 %
November	29.0 °C	8 mm	20 %
December	23.8 °C	14 mm	28 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	21.7 °C	12.6 °C	17.1 °C	30.4 °C	3.0 °C	4	0
February	23.6 °C	13.4 °C	18.4 °C	35.4 °C	5.0 °C	9	1
March	27.5 °C	16.0 °C	21.7 °C	38.3 °C	7.6 °C	23	7
April	33.3 °C	20.4 °C	26.9 °C	42.4 °C	11.6 °C	30	25
May	39.1 °C	25.1 °C	32.3 °C	46.3 °C	17.7 °C	31	31
June	41.5 °C	27.2 °C	34.5 °C	49.0 °C	20.9 °C	30	30
July	42.4 °C	28.8 °C	35.7 °C	49.1 °C	22.0 °C	31	31
August	42.2 °C	28.7 °C	35.5 °C	47.1 °C	24.2 °C	31	31
September	39.7 °C	26.2 °C	33.0 °C	46.5 °C	20.2 °C	30	30
October	35.5 °C	23.2 °C	29.4 °C	44.0 °C	17.1 °C	31	31
November	29.0 °C	19.3 °C	24.1 °C	36.5 °C	11.8 °C	27	11
December	23.8 °C	14.9 °C	19.2 °C	30.6 °C	7.8 °C	11	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	11 mm	2	11 h/day	30 %	68 %	23 km/h	20.1 °C
February	12 mm	2	11 h/day	25 %	63 %	25 km/h	19.4 °C
March	12 mm	2	12 h/day	30 %	55 %	25 km/h	20.9 °C
April	4 mm	1	13 h/day	30 %	45 %	24 km/h	23.9 °C
May	under 1 mm	0	13 h/day	14 %	37 %	25 km/h	27.7 °C
June	under 1 mm	0	14 h/day	4 %	37 %	27 km/h	30.4 °C
July	under 1 mm	0	14 h/day	13 %	43 %	25 km/h	32.5 °C
August	under 1 mm	0	13 h/day	11 %	51 %	22 km/h	33.9 °C
September	under 1 mm	0	12 h/day	4 %	55 %	20 km/h	33.1 °C
October	under 1 mm	0	12 h/day	8 %	59 %	19 km/h	30.7 °C
November	8 mm	1	11 h/day	20 %	63 %	21 km/h	27.1 °C
December	14 mm	2	11 h/day	28 %	70 %	21 km/h	22.8 °C

How Ar Rayyān 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
Ar Rayyān	42 °C	13 °C	61 mm	287
Doha · Qatar	41 °C	14 °C	61 mm	280
Lusail · Qatar	40 °C	14 °C	61 mm	274
Al Muharraq · Bahrain	36 °C	15 °C	67 mm	230
Dammam · Saudi Arabia	40 °C	12 °C	87 mm	257
Al Hufūf · Saudi Arabia	45 °C	8.7 °C	70 mm	279
Al Jubayl · Saudi Arabia	41 °C	11 °C	101 mm	258

Where Ar Rayyān ranks

Ranking	Position	Value
The driest places in Asia in October	4th of 50	0.5 mm
Warmest sea temperatures in Asia in August	4th of 50	34 °C
Warmest sea temperatures in Asia in September	4th of 50	33 °C
Warmest sea temperatures in the world in August	4th of 50	34 °C
Warmest sea temperatures in the world in September	4th of 50	33 °C
Warmest sea temperatures in Asia in July	6th of 50	33 °C

Planning a trip? See the best time to visit Ar Rayyān.

QuestionsCommon questions about Ar Rayyān’s climate

When is the best time to visit Ar Rayyān?

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 Ar Rayyān get?

In July, the warmest month, daily highs average 42 °C. About 228 days a year pass 30 °C. The highest value in the 1991–2020 record is 49 °C.

How cold does it get in winter?

Nights average 13 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Ar Rayyān?

December, averaging 14 mm over 2 days with rain. The driest month is June with 0 mm. The year as a whole averages 61 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 Ar Rayyān 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
Data point: 25.292°, 51.424° (the coordinates the reanalysis values are taken for)
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.