Monastery of Saint Thaddeus Սուրբ Թադէոս վանք
Iran UNESCO World Heritage Site

The Monastery of Saint Thaddeus is a stone monastery and part of the Armenian Monastic Ensembles of Iran. This site is part of a UNESCO World Heritage Site and features Armenian, Ilkhanid, Safavid, and Qajar architecture.
Planning a visit
The climate is warmest from July to September, with daily highs reaching 25 °C and the least amount of rain. The coldest period is from December to February, when daily lows drop to between -13 °C and -11 °C. Rainfall is highest in May, with about 75 mm of rain over 14 days.
The monastery is located 713 km from Tehran. The nearest airport is Nakhchivan International Airport in Azerbaijan, which is 80 km away. Visitors can combine a trip to the monastery with a visit to the Durupınar site, located 47 km away. This sight is one of the 57 sights of Iran looked up on English Wikipedia and is ranked 35th among the country's sights.
Weather by month
The warmest month is August, with an average high of 25 °C. The wettest is May, with about 75 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | -1 | 0 | 5 | 11 | 16 | 21 | 25 | 25 | 21 | 14 | 6 | 1 |
| Average low, °C | -13 | -11 | -7 | 0 | 4 | 9 | 13 | 13 | 9 | 3 | -3 | -9 |
| Rainfall, mm | 19 | 24 | 40 | 60 | 75 | 45 | 21 | 12 | 15 | 30 | 28 | 21 |
| Rainy days | 5 | 5 | 8 | 8 | 14 | 8 | 3 | 2 | 3 | 7 | 5 | 6 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.