Karaj Weather in January
Thinking of visiting Karaj in January? Expect low temperatures reaching 4°C (39°F) during the day, dropping to -6°C (21°F) at night, with some snow/rainfall likely.
Rainfall in Karaj in January
Records from the past 30 years suggest around 10 days of snow/rain, with 44 mm (1.7 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Karaj in January
January in Karaj brings typical temperatures with highs around 4°C (39°F) and lows of -6°C (21°F). Winter occurs in January. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. With lows of -6°C (21°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated. This month tends to bring the coldest weather of the year, so be sure to pack enough warm clothing to stay comfortable.
Sunshine in Karaj in January
You can expect a moderate amount of sunlight, with approximately 166 hours. This means a pleasant mix of sun and overcast.January in Karaj has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iran, check out our Karaj's climate page.
Karaj Temperature in January
Min Temperature
-6°C (21°F)
Max Temperature
4°C (39°F)
Chance of Rain
35%
Precipitation
44 mm (1.7 in)
Rainy days
10 days
Humidity
67%
Sunshine
166 hours
Percentage Sunshine
Daily Historical Temperatures
37-year average (1980-2026)
Based on our historical records, temperatures in Karaj typically stay consistent throughout January, with daily highs averaging around 4°C (39°F). Nights are cold, with lows typically ranging from -2°C (28°F) to 2°C (36°F).
Average temperatures in January
Daily Historical Precipitation
37-year average (1980-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Karaj in January
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.
Karaj historical weather extremes in January
Based on 21 years of weather observations in Karaj between 2004 and 2025, these are the recorded extremes.
- Karaj recorded its highest January temperature of 17°C (63°F) on January 20, 2016.
- On January 7, 2008, Karaj saw its coldest January day with temperatures maxing out at -6°C (21°F).
- Karaj registered its coldest January night on January 17, 2008, with temperatures dropping to -18°C (0°F).
Best Places in Iran in January
Find out more about the weather in Iran and which places have the best travel conditions in this month. See all of Iran in January →
perfect weather
pleasant
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What to Wear in Karaj in January
We recommend to layer up for chilly conditions in Karaj in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Karaj in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iran, check out our Karaj's climate page.
Temperature Rainfall Sunshine Humidity
See the full Karaj climate overview or explore weather in Iran.
