Tehran in January
In January, Tehran averages 9°C (47°F) during the day and -1°C (30°F) at night, with around 11 days of rain (37 mm total).
ShoulderConditions are cold — pack winter layers. Plan for unsettled weather and bring rain gear.
January in Tehran is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How January compares to the rest of the year in Tehran
January is one of the coolest months in Tehran (12th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 15°C below the annual average (23°C). January runs 2°C cooler than December (10°C) and warms a further 3°C into February (11°C).
January sunrise & sunset in Tehran
Times shown for Tehran local time (Asia/Tehran), calculated for the 15th of January. They shift by a few minutes day to day across the month.
Photography light in Tehran — January
Golden-hour and blue-hour windows for the 15th of January, in Tehran's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Tehran in January
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on January's tier (Shoulder) and Tehran's popularity.
Crowds & pricing — January in Tehran
Tehran is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — January in Tehran
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
🌬 Frosty nights — Tehran in January
Gear: Cold nights, milder days. Light insulated jacket fine for daytime, real coat for after dark.
Tehran in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 9°C / 47°F | -1°C / 30°F | 37 mm | 11 | — |
| February | 11°C / 52°F | 1°C / 33°F | 41 mm | 11 | — |
| March | 17°C / 62°F | 6°C / 42°F | 60 mm | 16 | — |
| April | 23°C / 73°F | 11°C / 51°F | 36 mm | 13 | — |
| May | 30°C / 85°F | 17°C / 62°F | 14 mm | 10 | — |
| June | 36°C / 96°F | 23°C / 73°F | 2 mm | 2 | — |
| July | 37°C / 99°F | 26°C / 78°F | 2 mm | 2 | — |
| August | 36°C / 96°F | 24°C / 75°F | 1 mm | 1 | — |
| September | 32°C / 89°F | 20°C / 68°F | 2 mm | 2 | — |
| October | 24°C / 75°F | 13°C / 56°F | 23 mm | 7 | — |
| November | 15°C / 58°F | 5°C / 42°F | 42 mm | 11 | — |
| December | 10°C / 51°F | 1°C / 34°F | 39 mm | 9 | — |
Other cities with similar January weather
🌍 See the full ranked list of climate twins for Tehran in January →
Frequently asked questions
How hot is Tehran in January?
In January, Tehran averages a high of 9°C (47°F) and a low of -1°C (30°F) — generally cool.
Does it rain a lot in Tehran in January?
January can be fairly wet in Tehran, with about 11 rainy days on average.
Is January a good time to visit Tehran?
January is cool. It suits travelers who are comfortable with cool weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Tehran in January?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full January packing list for Tehran for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.