Ṣuwayliḥ climate

Name: Ṣuwayliḥ
Address: JO

Ṣuwayliḥ is warmest in August, with average highs of 31 °C, and coldest in January, when nights average 2.3 °C. January is the wettest month (54 mm) and July the driest (0.03 mm). Figures are 1991–2020 climate normals.

Across a full year Ṣuwayliḥ averages 228 mm of rain, 159 days above 25 °C and 13 days below freezing.

Jordan · population 151,016 · 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 August 31 °C
Coldest month January 2.3 °C
Driest month July 0 mm
Wettest month January 54 mm
Least cloud July 4 % cloud
Hottest on record August 40 °C
Coldest on record February -6.3 °C

What to expectṢuwayliḥ through the year

Ṣuwayliḥ has a clear annual cycle: average daily highs run from 11 °C in January to 31 °C in August, a swing of 18 °C in mean temperature across the year.

Counted across a normal year, 159 days a year reach 25 °C, 75 of them reach 30 °C, 13 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in August.

Rain is strongly seasonal. January averages 54 mm against 0 mm in July — 1,815 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	10.8 °C	54 mm	45 %
February	12.0 °C	51 mm	43 %
March	15.8 °C	37 mm	37 %
April	21.0 °C	13 mm	30 %
May	25.9 °C	7 mm	21 %
June	29.3 °C	under 1 mm	5 %
July	31.2 °C	under 1 mm	4 %
August	31.3 °C	under 1 mm	5 %
September	29.0 °C	1 mm	7 %
October	24.6 °C	7 mm	20 %
November	17.9 °C	21 mm	33 %
December	12.9 °C	36 mm	40 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	10.8 °C	2.3 °C	6.4 °C	21.5 °C	-5.8 °C	0	0	5
February	12.0 °C	2.9 °C	7.3 °C	24.2 °C	-6.3 °C	0	0	4
March	15.8 °C	5.3 °C	10.5 °C	31.3 °C	-2.8 °C	1	0	1
April	21.0 °C	8.6 °C	14.9 °C	33.9 °C	-1.9 °C	7	1	0
May	25.9 °C	13.0 °C	19.5 °C	36.8 °C	5.8 °C	18	6	0
June	29.3 °C	16.1 °C	22.5 °C	37.4 °C	11.0 °C	28	12	0
July	31.2 °C	18.2 °C	24.3 °C	39.0 °C	13.8 °C	31	22	0
August	31.3 °C	18.5 °C	24.4 °C	40.1 °C	14.9 °C	31	23	0
September	29.0 °C	16.8 °C	22.5 °C	39.4 °C	7.8 °C	28	10	0
October	24.6 °C	13.6 °C	18.9 °C	34.5 °C	4.2 °C	14	2	0
November	17.9 °C	7.9 °C	12.8 °C	27.6 °C	-2.9 °C	1	0	0
December	12.9 °C	4.0 °C	8.2 °C	24.6 °C	-4.1 °C	0	0	3

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	54 mm	8	10 h/day	45 %	70 %	12 km/h
February	51 mm	8	11 h/day	43 %	67 %	13 km/h
March	37 mm	6	12 h/day	37 %	60 %	14 km/h
April	13 mm	3	13 h/day	30 %	49 %	14 km/h
May	7 mm	1	14 h/day	21 %	43 %	16 km/h
June	under 1 mm	0	14 h/day	5 %	45 %	16 km/h
July	under 1 mm	0	14 h/day	4 %	48 %	16 km/h
August	under 1 mm	0	13 h/day	5 %	52 %	15 km/h
September	1 mm	0	12 h/day	7 %	52 %	13 km/h
October	7 mm	1	11 h/day	20 %	51 %	11 km/h
November	21 mm	4	11 h/day	33 %	57 %	11 km/h
December	36 mm	6	10 h/day	40 %	66 %	11 km/h

How Ṣuwayliḥ 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
Ṣuwayliḥ	31 °C	2.3 °C	228 mm	159
Wādī as Sīr · Jordan	33 °C	4.0 °C	223 mm	178
Amman · Jordan	33 °C	4.1 °C	176 mm	182
Khuraybat as Sūq · Jordan	32 °C	3.5 °C	184 mm	175
Russeifa · Jordan	34 °C	5.0 °C	172 mm	195
Zarqa · Jordan	34 °C	3.9 °C	171 mm	191
Irbid · Jordan	33 °C	4.0 °C	266 mm	187

Where Ṣuwayliḥ ranks

Ranking	Position	Value
Places with the best weather in Asia in October	19th of 50	97/100
Places with the best weather in the world in October	20th of 50	97/100
The driest places in Asia in August	20th of 50	0.04 mm
Places with the best weather in Asia year-round	24th of 50	79/100
Places with the best weather in Asia in May	30th of 50	93/100
The driest places in Asia in July	30th of 50	0.03 mm

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

QuestionsCommon questions about Ṣuwayliḥ’s climate

When is the best time to visit Ṣuwayliḥ?

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

How hot does Ṣuwayliḥ get?

In August, the warmest month, daily highs average 31 °C. About 75 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.

How cold does it get in winter?

Nights average 2.3 °C in January, the coldest month. A normal year has 13 nights below freezing.

Which month is wettest in Ṣuwayliḥ?

January, averaging 54 mm over 8 days with rain. The driest month is July with 0 mm. The year as a whole averages 228 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 Ṣuwayliḥ 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: 32.022°, 35.844° (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.