Ar Rayyān weather in October

In October, Ar Rayyān has daytime highs averaging 36 °C, nights around 23 °C, with 0.2 wet days, and a sea temperature of 31 °C. Figures are 1991–2020 climate normals.

  1. Jan 17°
  2. Feb 18°
  3. Mar 22°
  4. Apr 27°
  5. May 32°
  6. Jun 35°
  7. Jul 36°
  8. Aug 35°
  9. Sep 33°
  10. Oct 29°
  11. Nov 24°
  12. Dec 19°

Daily temperatures through October

19°30°41°18152229
Daily highDaily low Day of month on the horizontal axis. Highs peak at 38.2 °C and lows bottom out at 21.4 °C.

How October 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.

DaysAvg highAvg lowChance of rain
1–10 October37.3 °C24.4 °C1 %
11–20 October35.8 °C23.3 °C0 %
21–31 October33.9 °C22.2 °C1 %
0%50%100%151015202530
Chance of a wet day (over 1 mm) by date in October. Wettest date over the 30 years: October 5, at 3 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure Typical October 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 0.2 of 31 1 %

Conditions in October

MeasureAverage
Mean temperature 29 °C
Record high (1991–2020) 44 °C
Record low (1991–2020) 17 °C
Relative humidity 59 %
Wind speed 19 km/h
Cloud cover 8 %

Where Ar Rayyān ranks in October

RankingPositionValue
The driest places in Asia in October4thof 500.5 mm
Warmest sea temperatures in Asia in October8thof 5031 °C
Warmest sea temperatures in the world in October10thof 5031 °C
The driest places in the world in October13thof 500.5 mm
The warmest places in Asia in October19thof 5036 °C
The warmest places in the world in October38thof 5036 °C

October compared with the months around it

Month Avg high Rainfall Cloud
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 %

See all twelve months for Ar Rayyān

Nearby destinations in October

Destination Avg high Wet days Sea
Ar Rayyān 36 °C 0.2 31
Doha 35 °C 0 31
Lusail 34 °C 0 31
Al Muharraq 31 °C 0 30
Dammam 34 °C 0 30
Al Hufūf 36 °C 0
Al Jubayl 35 °C 0 30
Abu Dhabi 35 °C 0 31
Musaffah 36 °C 0

QuestionsOctober in Ar Rayyān, answered

How warm is Ar Rayyān in October?

Daily highs average 36 °C and nights fall to about 23 °C, a spread of 12 °C between afternoon and dawn. That makes October the 6th warmest month of the year here.

Does it rain much in Ar Rayyān in October?

October averages under 1 mm of rain, spread over about 0 of the 31 days — 1 % of the month. Cloud cover averages 8 % of the sky.

Is the sea warm enough to swim in October?

The sea averages 31 °C off Ar Rayyān in October. 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 October?

Ar Rayyān averages 12 hours between sunrise and sunset in October. 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

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

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.