Iran is a pretty big country with a diverse climate. You’ll find scorching deserts, cold mountains, and mild coastlines. That means the weather varies a lot depending on where you are and when you visit. In this guide, I’ll break down the weather by month and give you tips on the best times to visit based on activities or specific regions.
Let’s jump into Iran’s weather, month by month, to help you plan your trip.
Iran’s Weather in January
January is cold in most parts of the country, especially in northern areas like Tehran, Tabriz, and the Alborz Mountains. You’ll get snow in these regions, so if you’re into skiing, this is a great time to head to Dizin or Shemshak. Temperatures can drop below freezing in these areas, so pack your winter gear.
Further south, it’s much milder. Cities like Shiraz and Yazd are cool to mild, averaging around 10-15°C during the day. The Persian Gulf coast is also more pleasant with temperatures hovering around 20°C, making it a great escape from the winter chill up north.
Iran’s Weather in February
February isn’t much different from January. It’s still cold in the north, but things start warming up just a little in central Iran. The ski resorts are still open, and this is usually the last full month to enjoy winter sports.
Southern Iran, like the areas around the Persian Gulf, is perfect for exploring, with temperatures sitting comfortably between 15-25°C. This is a good month to visit Kish Island or Hormuz Island if beaches are your thing.
Iran’s Weather in March
March brings some much-needed relief from the cold in northern Iran, although it can still be chilly. Central Iran is now becoming more pleasant, with places like Isfahan having daytime highs around 15-20°C. Nights are still cold, though, so pack a light jacket.
March also marks the Persian New Year—Nowruz—on March 21st. This is one of the busiest travel periods in Iran, so expect crowds and higher prices, especially in tourist hotspots.
Iran’s Weather in April
April is one of the best months to visit Iran. The weather is mild and pleasant almost everywhere. Central Iran is in its prime with temperatures around 20-25°C during the day—a perfect time to explore Shiraz, Yazd, or Isfahan.
The northern regions are warming up nicely, too, although it can still get cold at night in the mountains. The heat hasn’t hit the south yet, so it’s a good time to visit parts of the desert or the coastline around the Persian Gulf before it gets too hot.
Iran’s Weather in May
By May, central Iran is starting to get a little warmer, with temperatures often climbing above 30°C in cities like Yazd and Shiraz. It’s still pleasant during the day, but you’ll start feeling the heat in more open, desert areas.
The north is now at its best—lush, green, and mild. This is a great time to explore the Caspian Sea region or go hiking in the Alborz Mountains. Further south, the Persian Gulf region is starting to heat up, but it’s still bearable for beach activities.
Iran’s Weather in June
In June, summer is knocking on the door. Central and southern Iran are getting hot, with temperatures climbing above 35°C in many areas. Cities like Kerman and Yazd will have dry, desert heat, so pack light, breathable clothing.
The north is still a good place to be, with cooler temperatures in the day and fresh breezes from the mountains. If you’re planning to hike, early mornings and late afternoons are best to avoid the midday heat.
Iran’s Weather in July
July is hot. If you’re in central or southern Iran, you’re going to feel it. Temperatures in places like Yazd, Shiraz, and Esfahan can hit 40°C or more.
The north is still cooler, and the mountains will offer you some relief. Coastal areas along the Persian Gulf are sweltering, with high humidity making it feel even hotter. If you’re visiting in July, stick to indoor sights during the early afternoon and venture out in the cooler mornings or evenings.
Iran’s Weather in August
August is peak summer in Iran. The desert regions are extremely hot, with temperatures often exceeding 40°C during the day. Even nights can remain pretty warm. In cities like Yazd and Kerman, it’s best to do your sightseeing early in the day.
If you plan on heading to the mountains or northern Iran, now’s a great time. The weather is cool in places like Masuleh or near the Caspian Sea, making it ideal for hiking and outdoor activities.
Iran’s Weather in September
September marks the start of cooler weather in central Iran. While it’s still warm—temperatures around 30°C—you’ll feel a noticeable drop compared to the scorching heat of July and August. This is an excellent month to explore the deserts before it gets too cold at night.
The north is transitioning from summer to fall, with mild, pleasant days and cooler nights. It’s a great time to visit places like Tehran or the Caspian Sea area before the cold sets in.
Iran’s Weather in October
October is another fantastic month to visit Iran. Central Iran is much more comfortable, with temperatures around 25°C during the day and cooler evenings. It’s really nice for exploring cities like Shiraz, Yazd, and Esfahan.
The north is starting to cool off quite a bit, especially as you approach the mountains. It’s a good time for nature trips if you don’t mind colder nights. The south is still quite warm, so the Persian Gulf region is still nice if you want some beach time.
Iran’s Weather in November
November brings much cooler temperatures to central Iran, with daytime highs dipping to around 15-20°C and nights becoming chilly. It’s a great time to visit desert areas if you want to avoid the extreme heat of summer and the cold of winter.
Up north, it’s cold in the mountains, with a chance of frost in the higher areas. Meanwhile, southern coastal regions remain a good option for warmer weather, making it a solid time to visit islands like Kish or Hormuz.
Iran’s Weather in December
December is wintertime in Iran. Northern Iran will likely have snow, especially in the Alborz Mountains and near Tabriz. If you’re into skiing, the slopes are starting to open, and Tehran also gets pretty cold.
Meanwhile, central Iran is cool, with temperatures in Isfahan and Shiraz around 10-15°C during the day. You’ll need a warm jacket for the evenings. Southern Iran is still mild, so if you’re looking for warmer weather in December, head to the Persian Gulf coast where it can still be around 20°C.
Best Times to Visit Iran Based on Activities
Hiking and Nature
If you’re planning to explore the mountains or countryside, late spring (April and May) and early autumn (September and October) are ideal. The weather is cool enough for outdoor adventures without things getting too harsh.
Desert Tours
The best time for desert tours is in the spring or fall, when temperatures are milder in places like Yazd or Kerman. Avoid summer when the heat makes it almost unbearable during the day.
Beach and Coastal Areas
Southern Iran, especially around the Persian Gulf, is best visited in the cooler months—December through February. Skip July and August unless you love extreme humidity and heat.
What to Pack for Different Seasons
Winter (December to February)
Pack for cold weather in the north and center: thick jackets, boots, and layering materials. For southern areas, you’ll want lighter outfits, though evenings can still be cool.
Spring (March to May)
Layers are good to have. Spring mornings and evenings can be cool, but daytime temperatures are usually pleasant. If you’re heading to the mountains, be sure to include some warmer clothing in case it gets cold at higher elevations.
Summer (June to August)
Think light and breathable. In desert areas and most of central and southern Iran, you’ll want airy clothing, sunglasses, and enough sunscreen. Stay hydrated and try to avoid the midday heat.
Autumn (September to November)
Much like spring, layering works best in autumn since the temperatures can fluctuate. Have a warm jacket in case evenings get chilly, especially if you’re near the mountains or up north.
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