What May feels like in Isfahan
May is late spring in Isfahan. Afternoons are hot, so sightseeing works best in the morning or evening. The day–night swing is wide (about 15.2°C (27.4°F)): nights stay mild, so mornings and evenings feel very different from midday. The heat is dry rather than muggy, so drink more than you think you need.
Rain in Isfahan in May
Rain is rare in May — most weeks pass without a wet day. Rainfall per wet day is small, about 3.8 mm (0.1 in), so showers tend to pass quickly. Across the year Isfahan averages about 4.5 mm per rainy day, so May is typical.
Daylight and sunshine in May
Mid-month, Isfahan gets 13 h 49 min of daylight, from sunrise near 5:05 am to sunset near 6:54 pm. Days are getting longer: 51 min more daylight than in mid-April. About 88% of daylight hours are sunny; in short, skies are mostly clear.
How May compares to the rest of the year
Ranked by average high, May comes out as the 5th warmest month in Isfahan. Against April, the average high is 5.9°C (10.6°F) higher, with 5 mm less rain. June continues the upward trend. June averages a high of 35.3°C (95.5°F).
Who May suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
Tips for visiting Isfahan in May
Versatile Layers
Pack pieces you can take off by noon and put back on at dusk.
Sun Protection
Loose, breathable clothing plus sunscreen and a wide-brimmed hat.
Quick questions
How warm is Isfahan in May?
Afternoons average 29.6°C (85.3°F) and nights about 14.4°C (57.9°F) — hot by most people's standards. It is the 5th warmest month of the year.
Does it rain a lot in Isfahan in May?
No — May is one of the drier times, with about 2 rainy days and 8 mm in total.
What should I wear in Isfahan in May?
Pack versatile layers and sun protection. Add a layer for after dark.
Is May or June better for visiting Isfahan?
May, clearly: it ranks #5 of 12 among Isfahan's months, against #8 for the other. June is warmer and has fewer rainy days.