Yasuj, Iran climate

BSh Hot semi-arid

Yasuj has a seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is July with an average daily high near 102°F, while the coldest is January averaging around 33°F at night. Precipitation totals about 11 inches a year and is strongly seasonal — December alone averages 2.1 inches while September barely receives 0.03 inches.

☀️ Summers

Very hot

Highs near 102°F in July.

About 128 days a year above 90 °F

❄️ Winters

Chilly

Lows near 33°F in January.

About 34 freezing nights a year

🌧️ Rain

Fairly dry

About 11 in of rain a year.

Wettest in December

⛅ Sky & trend

Fairly sunny

More sun than cloud through the year.

+1.0 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Yasuj climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	55	60	67	77	88	98	102	100	94	83	69	59
Avg temp (°F)	44	48	54	63	74	82	86	84	77	67	55	47
Avg low (°F)	33	37	41	50	59	66	71	69	61	51	41	35
Precipitation (in)	2.1	1.7	1.4	0.9	0.4	0.4	0.1	0.1	0.0	0.3	1.6	2.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	55	60	67	77	88	98
Avg temp (°F)	44	48	54	63	74	82
Avg low (°F)	33	37	41	50	59	66
Precipitation (in)	2.1	1.7	1.4	0.9	0.4	0.4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	102	100	94	83	69	59
Avg temp (°F)	86	84	77	67	55	47
Avg low (°F)	71	69	61	51	41	35
Precipitation (in)	0.1	0.1	0.0	0.3	1.6	2.1

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	4	4	4	4	2	0.5	0.4	0.2	0.1	0.8	3	3
Days with high ≥ 90°F (days)	—	—	—	0.3	14	28	29	30	25	3	—	—
Days with low ≤ 32°F (days)	14	7	1	—	0.0	—	—	—	—	—	2	9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	4	4	4	4	2	0.5
Days with high ≥ 90°F (days)	—	—	—	0.3	14	28
Days with low ≤ 32°F (days)	14	7	1	—	0.0	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	0.4	0.2	0.1	0.8	3	3
Days with high ≥ 90°F (days)	29	30	25	3	—	—
Days with low ≤ 32°F (days)	—	—	—	—	2	9

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	50	49	49	55	43	29	34	32	29	36	46	47
Clear days (≤ 30% cloud)	6	7	7	5	7	14	14	13	13	9	8	8
Partly cloudy days (30–70%)	17	15	16	16	20	15	15	18	16	20	16	16
Cloudy days (≥ 70%)	8	7	8	9	4	1	2	1.0	0.7	2	6	7
Relative humidity (%)	61	58	53	47	33	17	17	18	19	28	46	56
Wind speed (mph)	4.5	5.0	5.0	4.9	5.1	5.3	5.4	5.1	4.6	4.1	4.1	4.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	50	49	49	55	43	29
Clear days (≤ 30% cloud)	6	7	7	5	7	14
Partly cloudy days (30–70%)	17	15	16	16	20	15
Cloudy days (≥ 70%)	8	7	8	9	4	1
Relative humidity (%)	61	58	53	47	33	17
Wind speed (mph)	4.5	5.0	5.0	4.9	5.1	5.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	34	32	29	36	46	47
Clear days (≤ 30% cloud)	14	13	13	9	8	8
Partly cloudy days (30–70%)	15	18	16	20	16	16
Cloudy days (≥ 70%)	2	1.0	0.7	2	6	7
Relative humidity (%)	17	18	19	28	46	56
Wind speed (mph)	5.4	5.1	4.6	4.1	4.1	4.2

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 27 years of daily observations at Shiraz, a weather station, about 156 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →