Qom climate
Qom is warmest in July, with average highs of 39 °C, and coldest in January, when nights average -0.7 °C. March is the wettest month (26 mm) and August the driest (0.2 mm). Figures are 1991–2020 climate normals.
Across a full year Qom averages 143 mm of rain, 187 days above 25 °C and 36 days below freezing.
Iran · population 900,000 · 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 July 39 °C
- Coldest month January -0.7 °C
- Driest month August 0 mm
- Wettest month March 26 mm
- Least cloud September 5 % cloud
- Hottest on record July 44 °C
- Coldest on record January -19 °C
What to expectQom through the year
Qom has a clear annual cycle: average daily highs run from 9.5 °C in January to 39 °C in July, a swing of 28 °C in mean temperature across the year.
Counted across a normal year, 187 days a year reach 25 °C, 146 of them reach 30 °C, 36 nights drop below freezing. The warmest reading in the 1991–2020 record is 44 °C, in July.
Rain is spread fairly evenly through the year, from 0 mm in August to 26 mm in March. There is no dry season to aim for.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 9.5 °C | 22 mm | 38 % |
| February | 12.8 °C | 19 mm | 36 % |
| March | 18.7 °C | 26 mm | 41 % |
| April | 25.0 °C | 20 mm | 42 % |
| May | 31.0 °C | 8 mm | 32 % |
| June | 36.4 °C | 1 mm | 12 % |
| July | 38.6 °C | under 1 mm | 10 % |
| August | 37.5 °C | under 1 mm | 5 % |
| September | 33.0 °C | under 1 mm | 5 % |
| October | 25.8 °C | 6 mm | 22 % |
| November | 16.4 °C | 20 mm | 36 % |
| December | 10.8 °C | 20 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 | 9.5 °C | -0.7 °C | 4.3 °C | 20.0 °C | -19.0 °C | 0 | 0 | 16 |
| February | 12.8 °C | 1.5 °C | 7.2 °C | 25.9 °C | -13.3 °C | 0 | 0 | 9 |
| March | 18.7 °C | 6.4 °C | 12.9 °C | 34.4 °C | -14.2 °C | 3 | 1 | 1 |
| April | 25.0 °C | 12.2 °C | 19.1 °C | 34.9 °C | 0.9 °C | 15 | 4 | 0 |
| May | 31.0 °C | 17.7 °C | 25.0 °C | 39.1 °C | 6.0 °C | 28 | 20 | 0 |
| June | 36.4 °C | 22.7 °C | 30.3 °C | 42.8 °C | 14.5 °C | 30 | 29 | 0 |
| July | 38.6 °C | 25.5 °C | 32.7 °C | 44.1 °C | 19.3 °C | 31 | 31 | 0 |
| August | 37.5 °C | 24.2 °C | 31.5 °C | 43.5 °C | 14.7 °C | 31 | 31 | 0 |
| September | 33.0 °C | 19.4 °C | 26.8 °C | 39.6 °C | 12.1 °C | 30 | 25 | 0 |
| October | 25.8 °C | 13.5 °C | 20.0 °C | 35.5 °C | 6.2 °C | 18 | 5 | 0 |
| November | 16.4 °C | 6.3 °C | 11.4 °C | 29.6 °C | -7.7 °C | 1 | 0 | 1 |
| December | 10.8 °C | 1.6 °C | 6.1 °C | 24.1 °C | -6.5 °C | 0 | 0 | 9 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 22 mm | 5 | 10 h/day | 38 % | 61 % | 13 km/h |
| February | 19 mm | 4 | 11 h/day | 36 % | 53 % | 16 km/h |
| March | 26 mm | 5 | 12 h/day | 41 % | 43 % | 18 km/h |
| April | 20 mm | 4 | 13 h/day | 42 % | 38 % | 20 km/h |
| May | 8 mm | 2 | 14 h/day | 32 % | 28 % | 20 km/h |
| June | 1 mm | 0 | 14 h/day | 12 % | 20 % | 21 km/h |
| July | under 1 mm | 0 | 14 h/day | 10 % | 21 % | 22 km/h |
| August | under 1 mm | 0 | 13 h/day | 5 % | 21 % | 20 km/h |
| September | under 1 mm | 0 | 12 h/day | 5 % | 23 % | 17 km/h |
| October | 6 mm | 1 | 11 h/day | 22 % | 35 % | 14 km/h |
| November | 20 mm | 4 | 10 h/day | 36 % | 55 % | 12 km/h |
| December | 20 mm | 4 | 9.9 h/day | 40 % | 65 % | 11 km/h |
How Qom 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 |
|---|---|---|---|---|
| Qom | 39 °C | -0.7 °C | 143 mm | 187 |
| Sāveh · Iran | 38 °C | -2.2 °C | 227 mm | 179 |
| Kashan · Iran | 38 °C | -0.2 °C | 185 mm | 181 |
| Golestān · Iran | 37 °C | -3.2 °C | 302 mm | 171 |
| Varāmīn · Iran | 39 °C | -2.1 °C | 171 mm | 184 |
| Eslamshahr · Iran | 37 °C | -3.5 °C | 313 mm | 168 |
| Qarchak · Iran | 38 °C | -2.5 °C | 278 mm | 176 |
Where Qom ranks
| Ranking | Position | Value |
|---|---|---|
| The driest places in Asia in September | 36thof 50 | 0.2 mm |
Planning a trip? See the best time to visit Qom.
QuestionsCommon questions about Qom’s climate
When is the best time to visit Qom?
That depends on what you want, so the honest answer is a comparison rather than a single month. April, May, October sit closest to 20 °C on average, July is the warmest month and August the driest. The month-by-month table above has the full picture.
How hot does Qom get?
In July, the warmest month, daily highs average 39 °C. About 146 days a year pass 30 °C. The highest value in the 1991–2020 record is 44 °C.
How cold does it get in winter?
Nights average -0.7 °C in January, the coldest month. A normal year has 36 nights below freezing.
Which month is wettest in Qom?
March, averaging 26 mm over 5 days with rain. The driest month is August with 0 mm. The year as a whole averages 143 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 Qom 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
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
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.