Shiraz climate
Shiraz (Iran) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 18 °C65 °F, and about 273 mm11 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Shiraz climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1254 | 031 | 643 | 532.1 |
| Feb | 1558 | 134 | 846 | 411.6 |
| Mar | 1967 | 439 | 1253 | 401.6 |
| Apr | 2476 | 948 | 1762 | 251.0 |
| May | 3188 | 1458 | 2373 | 70.3 |
| Jun | 38100 | 1966 | 2883 | 40.1 |
| Jul | 39103 | 2271 | 3087 | 50.2 |
| Aug | 38100 | 2069 | 2985 | 40.1 |
| Sep | 3494 | 1762 | 2678 | 10.0 |
| Oct | 2882 | 1254 | 2068 | 40.2 |
| Nov | 1967 | 542 | 1254 | 401.6 |
| Dec | 1458 | 134 | 846 | 491.9 |
| Year | 39103 | 031 | 1865 | 27311 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 60% | 53% | 3.6 | 10:26 |
| Feb | 58% | 53% | 4.5 | 11:06 |
| Mar | 52% | 48% | 5.7 | 11:55 |
| Apr | 47% | 55% | 6.5 | 12:51 |
| May | 33% | 43% | 7.7 | 13:37 |
| Jun | 17% | 30% | 8.3 | 14:02 |
| Jul | 16% | 35% | 7.8 | 13:52 |
| Aug | 18% | 35% | 7.4 | 13:12 |
| Sep | 19% | 32% | 6.6 | 12:18 |
| Oct | 28% | 37% | 5.5 | 11:24 |
| Nov | 47% | 49% | 4.0 | 10:37 |
| Dec | 57% | 50% | 3.4 | 10:15 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Shiraz is like
The warmest month is July, with an average high of 39 °C103 °F and a low of 22 °C71 °F. The coldest is January, when highs average 12 °C54 °F and lows 0 °C31 °F. Seasons are strongly marked: the warmest month is on average 24.6 °C44.2 °F warmer than the coldest.
It is dry, with about 273 mm11 in of precipitation per year. The wettest three-month stretch is December–February, which brings 53% of the annual total. Months with less than 20 mm0.8 in on average: May–October. The wettest month is January (53 mm2.1 in), the driest is September (1 mm0.0 in).
Relative humidity ranges from 16% in July to 60% in January. The clearest skies (lowest average cloud amount, 30%) are typical of June. Average wind speed near the ground ranges from 7 km/h (4 mph) in October to 9 km/h (5 mph) in July. Daylight lasts from about 10.3 hours in December to 14.0 hours in June.
Best time to visit Shiraz
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and October and November: average highs of 19 °C67 °F to 28 °C82 °F with 4 mm0.2 in to 40 mm1.6 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 39 °C103 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Shiraz
- Winter (December–February) — highs 1254 to 15 °C58 °F, lows 031 to 1 °C34 °F, about 48 mm1.9 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 1967 to 31 °C88 °F, lows 439 to 14 °C58 °F, about 24 mm1.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 38100 to 39 °C103 °F, lows 1966 to 22 °C71 °F, about 4 mm0.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 1967 to 34 °C94 °F, lows 542 to 17 °C62 °F, about 15 mm0.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Shiraz compares
Compared with Isfahan, about 348 km to the north, Shiraz is on average 1.8 °C3.2 °F warmer and receives 66% more precipitation (273 mm11 in vs 164 mm6.5 in). The difference is largest in December (3.1 °C5.5 °F warmer).
Of the 82 places in Iran covered by World Climates, Shiraz is the 32nd warmest by annual mean temperature and the 41st wettest by annual precipitation. See all of them on the Iran climate page.
Places in other countries with the most similar temperature and rainfall pattern: Kŭlob (Tajikistan, BSh), Ashgabat (Turkmenistan, BWh) and Chaman (Pakistan, BWh).
Nearby places
- Marvdasht 39 km · 18 °C64 °F · 307 mm12 in
- Kazerun 85 km · 23 °C73 °F · 277 mm11 in
- Borazjan 133 km · 28 °C82 °F · 303 mm12 in
- Jahrom 159 km · 23 °C73 °F · 199 mm7.8 in
- Bushehr 179 km · 26 °C79 °F · 316 mm12 in
- Behbahan 246 km · 26 °C78 °F · 308 mm12 in
- Shahreza 274 km · 15 °C59 °F · 218 mm8.6 in
- Sirjan 305 km · 18 °C65 °F · 152 mm6.0 in
Frequently asked questions
What is the warmest month in Shiraz?
July is the warmest month in Shiraz, with an average high of 39 °C (103 °F) and an average low of 22 °C (71 °F).
What is the coldest month in Shiraz?
January is the coldest month, with an average high of 12 °C (54 °F) and an average low of 0 °C (31 °F).
When does it rain the most in Shiraz?
January is the wettest month with about 53 mm (2.1 in) of precipitation; September is the driest with about 1 mm (0.0 in).
What is the best time to visit Shiraz?
Judging by long-term averages, the most comfortable months are March and April and October and November.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,789 m, while Shiraz lies at about 1,545 m. Temperatures on this page were therefore adjusted by +1.6 °C2.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.