Bayjī weather in September

Name: Bayjī
Address: IQ

In September, Bayjī has daytime highs averaging 39 °C, nights around 25 °C, with 0.03 wet days. Figures are 1991–2020 climate normals.

38.8°C Average high
24.6°C Average low
0.03days Wet days
under 1mm Rainfall
12h Daylight

Daily temperatures through September

Daily highDaily low Day of month on the horizontal axis. Highs peak at 42.4 °C and lows bottom out at 21.8 °C.

How September 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 September	40.7 °C	26.6 °C
11–20 September	39.2 °C	24.8 °C
21–30 September	36.7 °C	22.8 °C

Average highs fall from 40.7 °C early in September to 36.7 °C by the end of it.

Chance of a wet day (over 1 mm) by date in September. Wettest date over the 30 years: September 20, at 3 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure	Typical September	Share of the month
Days above 25 °C	30 of 30	100 %
Days above 30 °C	30 of 30	100 %
Days below 0 °C	0 of 30	0 %
Days with more than 1 mm rain	0.03 of 30	0 %

Conditions in September

Measure	Average
Mean temperature	32 °C
Record high (1991–2020)	47 °C
Record low (1991–2020)	14 °C
Relative humidity	21 %
Wind speed	19 km/h
Cloud cover	3 %

Where Bayjī ranks in September

Ranking	Position	Value
The driest places in Asia in September	26thof 50	0.2 mm
The warmest places in Asia in September	36thof 50	39 °C
The warmest places in the world in September	38thof 50	39 °C
The driest places in the world in September	44thof 50	0.2 mm

September compared with the months around it

Month	Avg high	Rainfall	Cloud
July	43.5 °C	under 1 mm	2 %
August	43.3 °C	under 1 mm	2 %
September	38.8 °C	under 1 mm	3 %
October	31.9 °C	16 mm	23 %
November	21.7 °C	24 mm	33 %

See all twelve months for Bayjī

September is the 4th warmest month here.
It is the 4th driest month of the year.
It ranks 3rd for least cloud cover.
Days last about 12 hours from sunrise to sunset.
It rains on 0.03 of 30 days — 0 % of the month.
Nights are about 14 °C cooler than the middle of the day.
The hottest September day on record since 1991 reached 47 °C, 7.9 °C above the usual daytime high.

Nearby destinations in September

Destination	Avg high	Wet days
Bayjī	39 °C	0.03
Ash Sharqāt	38 °C	0
Sāmarrā’	40 °C	0
Kirkuk	37 °C	0
Erbil	36 °C	0
Mosul	37 °C	0
Baqubah	41 °C	0
Ramadi	39 °C	0
Al Miqdādīyah	41 °C	0

QuestionsSeptember in Bayjī, answered

How warm is Bayjī in September?

Daily highs average 39 °C and nights fall to about 25 °C, a spread of 14 °C between afternoon and dawn. That makes September the 4th warmest month of the year here.

Does it rain much in Bayjī in September?

September averages under 1 mm of rain, spread over about 0 of the 30 days — 0 % of the month. Cloud cover averages 3 % of the sky.

How long are the days in September?

Bayjī averages 12 hours between sunrise and sunset in September. 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.