Tehran Weather in July
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Updated: March 2026
Is July a Good Time to Visit Tehran?
July is a good time to visit Tehran (6/10). With 13 daily sunshine hours and only 1 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 2nd sunniest of the year in Tehran. Culture-focused travellers and those who prefer lighter crowds will find July a practical choice, with prices running lower than peak June without sacrificing all the good weather. August offers a similar profile at lower hotel rates if dates are flexible. The intense midday heat between noon and 4pm warrants strategic planning: front-load outdoor sightseeing before 11am, retreat indoors during peak heat, and resume in the late afternoon when temperatures ease. 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 July climate peaks at 36°C each afternoon before cooling to 24°C overnight. 13 daily sunshine hours and just 1 wet days mean the odds of a fine day are solidly in your favour. It is an excellent window for outdoor itineraries.
36°C
Avg High
24°C
Avg Low
1 days
Rain Days
13h
Sunshine
65%
Humidity
Temperature in Tehran in July
The 12°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Winds are calm at an average 13 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 97°F average high, 75°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature in July
Monthly Precipitation (mm)
What to Wear in Tehran in July
Packing for Tehran in July means dressing for 36°C days and 24°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 36°C daytime heat. Evenings drop 12°C to around 24°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. For temple and religious site visits, carry a lightweight scarf or sarong to cover shoulders and knees, required at most major sites across the region.
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 July
July 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 July
Based on 36°C average highs and 1 rainy days
- Lightweight breathable clothing
- Linen or bamboo shirts for the hottest hours
- Sun hat with a wide brim
- UV-protective sunglasses
- Hydration bottle (at least 1 litre)
- Quick-dry travel towel
- Anti-chafe balm for long walking days
- Moisture-wicking synthetic fabrics for active days
- SPF 30+ sunscreen
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Tehran in July
- Early morning walk through Tehran's historic market districtBest before 9amTemperatures are still manageable at 32°C before the midday heat builds
- Open-air rooftop dining at sunsetFrom 6pm onwardsThe 36°C daytime heat drops noticeably after sunset, making al fresco dining comfortable
- Waterfront promenade or harbour walkEarly morning or after 5pmSea breezes cut through the humidity, making coastal routes the most pleasant in heat
- Guided cycling tour of the old quarterFirst tour of the day (7-9am)The low-traffic window before tourist crowds and the cooler morning air make this the prime riding slot
- 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 morningJuly brings distinct seasonal changes to public green spaces worth exploring
- Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in July, with vendors setting up specifically for warm evenings
Why is Tehran warm in July?
Tehran's July heat is driven by the Asian summer monsoon system, as the low-pressure cell that forms over the heated landmass draws warm, humid air from the oceans. The result is temperatures averaging 36°C with high moisture in the air. Overnight temperatures remain elevated at 24°C, as clouds and humidity prevent the earth from radiating heat away after sunset. 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 July
July ranks 2nd sunniest of the year in Tehran, with an average 13 daily sunshine hours. The driest months are July, August, and September. July is the hottest month (36°C avg high); January is the coolest (6°C). From here, temperatures fall 1°C into August. Compared to last month (June: 33°C high, 2 rain days), July is warmer and drier. July is among the top three sunniest months to visit Tehran.
Year-Round Climate
Plan Your Trip to Tehran
Data Sources for Tehran
Climate normals represent 30-year averages (1991-2020). Individual years may vary.