AI-generatedTehran at a glance
- Best time
- Apr – May, Oct
- Warmest month
- Jul · 36°
- Sunshine a year
- 3,010 h
- Rain a year
- 259 mm
- Climate
- Temperate
- Time zone
- UTC+3:30
- Elevation
- 1,178 m
Climate in Tehran
Tehran has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 36 °C, while January is the coolest at 6 °C. With around 3,010 hours of sunshine a year, Tehran is very sunny; June is the sunniest month with 11.3 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Excellent
Best time to visit: April – May, October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 16°
- Midday, 13:00: about 23°
- Afternoon, 16:00: about 22°
- Evening, 20:00: about 17°
- Night, 23:00: about 15°
06:1017:30
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:54–06:44 · evening 16:56–17:46
- Blue hour
- Morning 05:44–05:54 · evening 17:46–17:56
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Tehran in October?
In October, Tehran is warm: daytime highs average 23 °C, and nights cool down to about 13 °C. The sun shines for around 8 hours a day. Rain is rare: about 3 days bring 13 mm in total. All in all, October is an excellent month for a holiday in Tehran.
More details for October
- Daylight
- 11 h 21 min06:10 – 17:30
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 21 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+3:30Asia/Tehran
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %87 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Sunshine hours in Tehran
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 8.2 of 11.3 hours of daylight in Tehran, 73 % of the day.
Sunshine hours: measured at the weather station 10 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Tehran
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 11).
Minutes until sunburn in October
- Very fair skin
- about 25 min
- Fair skin
- about 30 min
- Light brown skin
- about 45 min
- Olive skin
- about 55 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Tehran: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Tehran has about 3 rainy days with 13 mm of rain in total.
Wind and clouds in Tehran
How breezy and how cloudy Tehran is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Tehran typically peaks at 10 km/h during the day: Beaufort 2, light air.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 21 % of the sky over Tehran: mostly sunny, with about 8.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Tehran
How often the day gets hot in Tehran (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Tehran has about 0 hot days, with an average daytime high of 23 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Snow in Tehran
Snow is possible in Tehran, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, it hardly ever snows in Tehran.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Tehran
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- Hot 24° and more
CoolOctober: nights around 13°. A duvet at night and a jumper for the evening.
The coolest nights are in January (−5°), the warmest in July (25°). Tropical nights of 20 °C and more are the rule from June to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in May and in September. Nights fall below 8 °C on average from November to March, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 32 | 6° | −5° | 5.7 h | 7 | 39 |
| FebruaryFeb | 32 | 8° | −3° | 6.3 h | 8 | 38 |
| MarchMar | 63 | 14° | 2° | 6.7 h | 8 | 47 |
| AprilApr | 92 | 21° | 8° | 7.7 h | 6 | 33 |
| MayMay | 98 | 27° | 15° | 9.2 h | 2 | 10 |
| JuneJun | 60 | 33° | 21° | 11.3 h | 0 | 2 |
| JulyJul | 50 | 36° | 25° | 11.1 h | 0 | 1 |
| AugustAug | 52 | 35° | 23° | 11.1 h | 0 | 1 |
| SeptemberSep | 80 | 30° | 19° | 10.2 h | 0 | 2 |
| OctoberOct | 97 | 23° | 13° | 8.2 h | 3 | 13 |
| NovemberNov | 62 | 14° | 4° | 6.0 h | 7 | 35 |
| DecemberDec | 32 | 8° | −2° | 5.3 h | 7 | 38 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
35.69° N, 51.42° E · 1,178 m · Asia/Tehran
Best time to visit Tehran
The best time to visit Tehran is from April to May and in October. For sightseeing, day trips and hiking, conditions are most comfortable from April to May and in October. From June to August it can get very hot, with highs of up to 36 °C. The wettest month is March with 47 mm of precipitation.
Tehran through the seasons
How the weather changes over the seasons, with averages for each.
Tehran in spring
Mar – May
Excellent
- 14–27 °C by day
- 8 h of sun a day
- 16 rainy days in all
Tehran in summer
Jun – Aug
Fair
- 33–36 °C by day
- 11 h of sun a day
- 1 rainy days in all
Tehran in autumn
Sep – Nov
Excellent
- 14–30 °C by day
- 8 h of sun a day
- 10 rainy days in all
Tehran in winter
Dec – Feb
Poor
- 6–8 °C by day
- 6 h of sun a day
- 22 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Tehran for you.
Your best months: October
Based on the climate averages; tap a month to see its details.
Compare two months in Tehran
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
October and May bring similar holiday weather to Tehran (score 97 and 98). In May, days are 4 °C warmer than in October. May has one rainy day fewer. The sun shines an hour longer a day in May.
| Month | October | May |
|---|---|---|
| Weather score | 97 | 98 |
| Day high | 23° | 27° |
| Night low | 13° | 15° |
| Sunshine | 8.2 h | 9.2 hbetter |
| Rainy days | 3 | 2better |
| Rainfall | 13 mm | 10 mm |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – May, Oct
15–28 °C and not too much rain
Peak heat
Jun – Aug
Highs of 33 °C or more
Tehran month by month
The typical weather for every month at a glance.
32January6° · 6 h
In January, Tehran is cold: daytime highs average 6 °C, and nights often drop below freezing (−5 °C). Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 39 mm. Snow falls on about 2 days. All in all, January is not an ideal month for a holiday in Tehran.
Tehran in January32February8° · 6 h
In February, Tehran is cold: daytime highs average 8 °C, and nights often drop below freezing (−3 °C). Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 38 mm. All in all, February is not an ideal month for a holiday in Tehran.
Tehran in February63March14° · 7 h
In March, Tehran is cool: daytime highs average 14 °C, and nights cool down to about 2 °C. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 47 mm. All in all, March is a good month for a holiday in Tehran.
Tehran in March92April21° · 8 h
In April, Tehran is mild: daytime highs average 21 °C, and nights cool down to about 8 °C. The sun shines for around 8 hours a day. Rain falls on about 6 days, adding up to 33 mm. All in all, April is an excellent month for a holiday in Tehran.
Tehran in April98May27° · 9 h
In May, Tehran is hot: daytime highs average 27 °C, and nights cool down to about 15 °C. With around 9 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 10 mm in total. On about 8 days the thermometer climbs to 30 °C or more. All in all, May is an excellent month for a holiday in Tehran.
Tehran in May60June33° · 11 h
In June, Tehran is very hot: daytime highs average 33 °C, and even at night it stays warm at around 21 °C. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 27 days the thermometer climbs to 30 °C or more. All in all, June is a good month for a holiday in Tehran.
Tehran in June50July36° · 11 h
In July, Tehran is very hot: daytime highs average 36 °C, and even at night it stays warm at around 25 °C. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. All in all, July is a so-so month for a holiday in Tehran.
Tehran in July52August35° · 11 h
In August, Tehran is very hot: daytime highs average 35 °C, and even at night it stays warm at around 23 °C. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. All in all, August is a so-so month for a holiday in Tehran.
Tehran in August80September30° · 10 h
In September, Tehran is hot: daytime highs average 30 °C, and nights cool down to about 19 °C. With around 10 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 17 days the thermometer climbs to 30 °C or more. All in all, September is an excellent month for a holiday in Tehran.
Tehran in September97October23° · 8 h
In October, Tehran is warm: daytime highs average 23 °C, and nights cool down to about 13 °C. The sun shines for around 8 hours a day. Rain is rare: about 3 days bring 13 mm in total. All in all, October is an excellent month for a holiday in Tehran.
Tehran in October62November14° · 6 h
In November, Tehran is cool: daytime highs average 14 °C, and nights cool down to about 4 °C. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 35 mm. All in all, November is a good month for a holiday in Tehran.
Tehran in November32December8° · 5 h
In December, Tehran is cold: daytime highs average 8 °C, and nights often drop below freezing (−2 °C). Expect around 5 hours of sunshine a day. Rain falls on about 7 days, adding up to 38 mm. All in all, December is not an ideal month for a holiday in Tehran.
Tehran in DecemberTehran compared
Put Tehran side by side with another destination.
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Tehran vs. Tabriz
In October the holiday weather in Tehran and Tabriz is about equally good (score 97 vs. 96). During the day Tabriz is 3 °C cooler than Tehran.
| in October | Tehran | Tabriz |
|---|---|---|
| Holiday score | 97 | 96 |
| Daytime high | 23° | 20° |
| Sunshine | 8 h | 8 h |
| Rainy days | 3 | 3 |
| Best time | Apr – May, Oct | May – Jun, Sep – Oct |
Through the year
Iran in October: the best places
In October, Tehran ranks 4 of 6 destinations in this country.
- Shiraz27°100
- 2Nishapur23°98
- 3Mashhad22°98
- 4TehranThis page23°97
- 5Tabriz20°96
- 6Bandar Abbas35°30°50
Planning a trip to Tehran
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Tehran in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Tehran has its best school-holiday weather during October half-term (score 97) and its weakest during the Christmas holidays (score 32).
- 83
Easter holidays
Mar – Apr
Excellent
- 19 °C by day
- 7.4 h of sun a day
- 7 rainy days a month
- 90
May half-term
May – Jun
Excellent
- 29 °C by day
- 9.6 h of sun a day
- 2 rainy days a month
Good for: Sightseeing & walks
- 51
Summer holidays
Jul – Aug
Fair
- 35 °C by day
- 11.1 h of sun a day
- 0 rainy days a month
Keep in mind: Peak heat
- 97
October half-term
Oct
ExcellentBest holidays
- 23 °C by day
- 8.2 h of sun a day
- 3 rainy days a month
Good for: Sightseeing & walks
- 32
Christmas holidays
Dec – Jan
Poor
- 7 °C by day
- 5.5 h of sun a day
- 7 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 5 h 50 min
- Distance
- 4,420 km
- Time zone
- UTC+3:30
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Tehran
When is the best time to visit Tehran?
The best time to visit Tehran is from April to May and in October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Tehran?
July is the warmest month, with average highs of 36 °C and nights around 25 °C. January is the coolest month at 6 °C.
When does it rain most in Tehran?
The wettest month is March with 47 mm of precipitation. The driest month is July with 1 mm.
How many hours of sunshine does Tehran get?
Tehran gets around 3,010 hours of sunshine a year. The sunniest month is June with 11.3 hours a day; in December there are 5.3 hours a day.
What time zone is Tehran in?
Tehran uses the time zone Asia/Tehran, at UTC+3:30 all year.
How long is the flight from London to Tehran?
A nonstop flight from London to Tehran takes about 5 h 50 min, for a straight-line distance of about 4,420 km.
Which school holidays are best for Tehran?
Tehran has its best school-holiday weather during October half-term (score 97) and its weakest during the Christmas holidays (score 32). Holiday ratings (0–100): Easter holidays 83, May half-term 90, Summer holidays 51, October half-term 97, Christmas holidays 32.
Near Tehran
Other destinations close by.
Places with a climate like Tehran
Destinations whose weather through the year is closest to Tehran's – good alternatives.