Qazvin climate
Qazvin (Iran) has a hot-summer Mediterranean climate (Köppen Csa). The average temperature over the year is 13 °C55 °F, and about 614 mm24 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Qazvin climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 541 | −523 | 032 | 552.2 |
| Feb | 745 | −425 | 235 | 562.2 |
| Mar | 1355 | 133 | 744 | 552.2 |
| Apr | 1864 | 541 | 1253 | 542.1 |
| May | 2475 | 1050 | 1763 | 230.9 |
| Jun | 3086 | 1356 | 2271 | 160.6 |
| Jul | 3391 | 1660 | 2476 | 200.8 |
| Aug | 3391 | 1660 | 2475 | 281.1 |
| Sep | 2882 | 1355 | 2169 | 562.2 |
| Oct | 2170 | 847 | 1558 | 953.7 |
| Nov | 1253 | 134 | 644 | 903.6 |
| Dec | 744 | −326 | 235 | 642.5 |
| Year | 3391 | −523 | 1355 | 61424 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 80% | 78% | 2.2 | 9:57 |
| Feb | 78% | 78% | 2.8 | 10:49 |
| Mar | 71% | 76% | 3.9 | 11:52 |
| Apr | 68% | 73% | 4.9 | 13:04 |
| May | 62% | 63% | 6.3 | 14:05 |
| Jun | 57% | 49% | 7.3 | 14:37 |
| Jul | 56% | 53% | 6.9 | 14:24 |
| Aug | 55% | 48% | 6.5 | 13:32 |
| Sep | 58% | 47% | 5.4 | 12:21 |
| Oct | 65% | 61% | 3.8 | 11:11 |
| Nov | 74% | 74% | 2.5 | 10:11 |
| Dec | 80% | 76% | 2.0 | 9:42 |
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 Qazvin is like
The warmest month is July, with an average high of 33 °C91 °F and a low of 16 °C60 °F. The coldest is January, when highs average 5 °C41 °F and lows −5 °C23 °F. Seasons are strongly marked: the warmest month is on average 24.3 °C43.8 °F warmer than the coldest.
Annual precipitation is moderate at about 614 mm24 in. The wettest three-month stretch is October–December, which brings 41% of the annual total. Months with less than 20 mm0.8 in on average: June. The wettest month is October (95 mm3.7 in), the driest is June (16 mm0.6 in).
Relative humidity ranges from 55% in August to 80% in January. The clearest skies (lowest average cloud amount, 47%) are typical of September. Average wind speed near the ground ranges from 7 km/h (4 mph) in November to 10 km/h (6 mph) in July. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.
Best time to visit Qazvin
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April–June and September and October: average highs of 18 °C64 °F to 30 °C86 °F with 16 mm0.6 in to 95 mm3.7 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 5 °C41 °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 Qazvin
- Winter (December–February) — highs 541 to 7 °C45 °F, lows −523 to −3 °C26 °F, about 58 mm2.3 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1355 to 24 °C75 °F, lows 133 to 10 °C50 °F, about 44 mm1.7 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3086 to 33 °C91 °F, lows 1356 to 16 °C60 °F, about 22 mm0.9 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 1253 to 28 °C82 °F, lows 134 to 13 °C55 °F, about 81 mm3.2 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How Qazvin compares
Compared with Karaj, about 101 km to the southeast, Qazvin is on average 1.7 °C3.1 °F cooler and receives 21% more precipitation (614 mm24 in vs 509 mm20 in). The difference is largest in July (3.3 °C5.9 °F cooler).
Of the 82 places in Iran covered by World Climates, Qazvin is the 75th warmest by annual mean temperature and the 5th 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: Ohrid (North Macedonia, Csa), Eskişehir (Turkey, Csa) and Bolu (Turkey, Cfa).
Nearby places
- Nazarabad 64 km · 16 °C60 °F · 426 mm17 in
- Karaj 101 km · 14 °C58 °F · 509 mm20 in
- Lahijan 104 km · 19 °C67 °F · 955 mm38 in
- Rasht 118 km · 18 °C65 °F · 1,019 mm40 in
- Chalus 134 km · 21 °C70 °F · 799 mm31 in
- Zanjan 142 km · 11 °C51 °F · 380 mm15 in
- Saveh 142 km · 18 °C65 °F · 248 mm9.8 in
- Tehran 143 km · 17 °C62 °F · 311 mm12 in
Frequently asked questions
What is the warmest month in Qazvin?
July is the warmest month in Qazvin, with an average high of 33 °C (91 °F) and an average low of 16 °C (60 °F).
What is the coldest month in Qazvin?
January is the coldest month, with an average high of 5 °C (41 °F) and an average low of -5 °C (23 °F).
When does it rain the most in Qazvin?
October is the wettest month with about 95 mm (3.7 in) of precipitation; June is the driest with about 16 mm (0.6 in).
What is the best time to visit Qazvin?
Judging by long-term averages, the most comfortable months are April–June and September and October.
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 1,662 m, while Qazvin lies at about 1,300 m. Temperatures on this page were therefore adjusted by +2.4 °C4.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.