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August in Karaj brings very high temperatures, with daytime highs of 33°C (91°F) and nights around 20°C (68°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
If you prefer enjoying temperate temperatures and rain-free days, May, September and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Karaj - and find the best time to visit.
41-year average (1976-2025)
Based on our historical records, temperatures in Karaj typically stay consistent throughout August, with daily highs averaging around 33°C (91°F). Nights are warm, with lows typically ranging from 22°C (72°F) to 25°C (77°F).
41-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Karaj spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Karaj spans 2001 to 2026, revealing these weather extremes.
Find out more about the weather in Iran and which places have the best travel conditions in this month. See all of Iran in August →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for serious heat in Karaj in August. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Dry conditions mean you won't need to worry about rain protection. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Karaj climate overview or explore weather in Iran.
Where to go in August - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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