Tehran Weather in October
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Updated: March 2026
Is October a Good Time to Visit Tehran?
October is a good time to visit Tehran (6/10). Average highs of 16°C and 4 sunshine hours daily make conditions workable, though not exceptional. Culture-focused travellers and those who prefer lighter crowds will find October a practical choice, with prices running lower than peak May without sacrificing all the good weather. November offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Tehran's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
Tehran's October climate peaks at 16°C each afternoon before cooling to 3°C overnight. 4 daily sunshine hours and just 2 wet days mean the odds of a fine day are solidly in your favour. It is an excellent window for outdoor itineraries.
16°C
Avg High
3°C
Avg Low
2 days
Rain Days
4h
Sunshine
45%
Humidity
Temperature in Tehran in October
The 13°C day-to-night swing is large enough to require a deliberate layering strategy, what works at noon will be noticeably cold by 10pm. Humidity averages 45%, which is comfortable for most visitors. The air feels fresh and dry enough to make extended outdoor activity pleasant. UV index averages 6 this month, classed as moderate. Sunscreen is a sensible precaution for extended outdoor time, particularly at midday. Wind averages 15 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 61°F average high, 37°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature in October
Monthly Precipitation (mm)
What to Wear in Tehran in October
Packing for Tehran in October means dressing for 16°C days and 3°C evenings. A mid-weight jacket over a sweater handles 16°C daytime temperatures; the combination stays comfortable all day without overheating. Evenings drop 13°C to around 3°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues.
Local tip: Temple and religious site visits require covered shoulders and knees in most of Tehran's heritage areas. A lightweight scarf or sarong weighs almost nothing and solves the problem instantly.
Events in Tehran in October
October has no major festivals or public holidays in Tehran, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Tehran in October
Based on 16°C average highs and 2 rainy days
- Light jacket or cardigan for cooler evenings
- Mix of short and long-sleeve layers
- Comfortable walking shoes with good arch support
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Tehran in October
- Explore the old town's cobblestone backstreetsMorning (9-11am)At 16°C, conditions are pleasant for unhurried exploration on foot
- Visit hilltop viewpoints for panoramic city viewsLate afternoon (4-6pm)Low sun angle creates dramatic light for photography while temperatures remain comfortable
- Bicycle rental for a half-day city circuitMid-morning startMild 16°C temperatures are ideal for extended cycling without excessive effort
- Boat tour of the river, bay, or canal networkLate morning departureComfortable weather makes open-deck boats viable without wind-chill concerns
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningOctober brings distinct seasonal changes to public green spaces worth exploring
- Try the seasonal farmer's market for local produce and street foodSaturday morning markets typically 8am-1pmOctober seasonal produce is at peak availability, offering dishes not found at other times of year
Why is Tehran mild in October?
October brings the first meaningful shift toward cooler conditions in Tehran, as the sun angle drops and day length shortens. Temperatures averaging 16°C by day and 3°C overnight are still comfortable by most standards, but the trend is clearly downward. At 36 degrees north latitude, autumn light has a particular quality: lower in the sky and warmer in tone, it gives the city a photogenic quality quite different from summer. Evening temperatures already demand a jacket, but midday hours stay pleasant for sightseeing. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate -- wear sunscreen. UV 6-7: High -- hat and SPF 30+ essential. UV 8-10: Very High -- limit midday exposure. UV 11+: Extreme -- seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry -- skin and throat may feel parched. 40-60%: Comfortable -- ideal for most people. 60-80%: Sticky -- light, breathable fabrics recommended. Above 80%: Muggy -- heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions: Tehran in October
October ranks 9th sunniest of the year in Tehran, with an average 4 daily sunshine hours. The driest months are December, January, and February. June is the hottest month (35°C avg high); December is the coolest (9°C). From here, temperatures fall 5°C into November. Compared to last month (September: 22°C high, 3 rain days), October is cooler and drier. October sits in the middle of the annual sunshine ranking for Tehran, offering a reasonable balance of good weather and manageable crowds.
Year-Round Climate
Plan Your Trip to Tehran
Data Sources for Tehran
Climate normals represent 30-year averages (1991-2020). Individual years may vary.