Being an enormous country, Iran has many areas with different temperatures. Spring and autumn are short seasons in Iran, between the heat of summer and the unpredictable and often cold weather of winter. Winter temperature often drops below freezing, mean while summers, can be horribly hot. In the northern coastal regions of the Caspian Sea climate is mild and damp. The southern parts and the Persian Gulf areas always have a warmer climate than Central Iran. North West Iran is about 10- 15C cooler than the rest of Iran.

In general, spring and autumn are the best time to visit Iran even if the weather may be a little uncertain with short lapses into either the cold of winter or the heat of summer. More accurate is mid-April to early June, and late September to early November. These times avoid the long, cold northern winter, the Iranian New Year (late March) and the summer.

CLIMATE

Weather Averages for Tehran

Average Temperatures for Tehran, Iran

Jan	Feb	Mar	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec
37°f	43°f	50°f	63°f	72°f	82°f	88°f	84°f	79°f	66°f	54°f	43°f
3°c	6°c	10°c	17°c	22°c	28°c	31°c	29°c	26°c	19°c	12°c	6°c

Average High/Low Temperature for Tehran, Iran

Jan	Feb	Mar	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec
45°f	50°f	59°f	72°f	82°f	93°f	99°f	95°f	90°f	75°f	61°f	50°f
7°c	10°c	15°c	22°c	28°c	34°c	37°c	35°c	32°c	24°c	16°c	10°c
30°f	34°f	41°f	52°f	61°f	70°f	75°f	73°f	66°f	55°f	45°f	34°f
-1°c	1°c	5°c	11°c	16°c	21°c	24°c	23°c	19°c	13°c	7°c	1°c

Average Rainfall for Tehran, Iran

Jan	Feb	Mar	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec
37mm	34mm	37mm	28mm	15mm	3mm	3mm	1mm	1mm	14mm	21mm	36mm

HOLIDAYS

January - New Year's Day

January - Islamic New Year

January - Ashoura

February - Revolution Day

March - Prophet's Birthday

March - Day of Nationalization of the Oil Industry

March - Noruz

April - Islamic Republic Day

April - Sizdah-bedar (National day to end Noruz)

July - Ascension of Prophet

October - Eid Al Fitr

DecembervEid Al Adha

Weekend - Friday