May weather forecastDeh Dalian, Iran
May
Weather in May
The last month of the spring, May, is an agreeable month in Deh Dalian, Iran, with an average temperature ranging between max 22°C (71.6°F) and min 11°C (51.8°F).Temperature
In Deh Dalian, the average high-temperature in May rises, from a moderate 15.9°C (60.6°F) in April, to an agreeable 22°C (71.6°F). Throughout May nights, Deh Dalian registers an average low-temperature of 11°C (51.8°F).Humidity
In Deh Dalian, Iran, the average relative humidity in May is 38%.Rainfall
In Deh Dalian, during May, the rain falls for 7.1 days and regularly aggregates up to 18mm (0.71") of precipitation. In Deh Dalian, Iran, during the entire year, the rain falls for 59.7 days and collects up to 258mm (10.16") of precipitation.Snowfall
May through October are months without snowfall in Deh Dalian.Daylight
The average length of the day in May is 13h and 59min.On the first day of May, sunrise is at 05:24 and sunset at 19:00. On the last day of the month, sunrise is at 05:03 and sunset at 19:22 +0330.
Sunshine
In Deh Dalian, the average sunshine in May is 11.7h.UV index
The months with the highest UV index in Deh Dalian, Iran, are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 6 in May transforms into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Deh Dalian, Iran
- Average high temperature in May: 22°C
The warmest month (with the highest average high temperature) is July (32.9°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in May: 11°C
The month with the highest average low temperature is July (18°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in May
Deh Dalian, Iran
- Average pressure in May: 1013.7mbar
The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is July (1006.4mbar).
Average wind speed in May
Deh Dalian, Iran
- Average wind speed in May: 11.8km/h
The windiest month (with the highest average wind speed) is March (12.7km/h).
The calmest month (with the lowest average wind speed) is November (8.3km/h).
Average humidity in May
Deh Dalian, Iran
- Average humidity in May: 38%
The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is July (21%).
Average rainfall in May
Deh Dalian, Iran
- Average rainfall in May: 18mm
The wettest month (with the highest rainfall) is March (44mm).
The driest month (with the least rainfall) is September (0mm).
Average rainfall days in May
Deh Dalian, Iran
- Average rainfall days in May: 7.1 days
The month with the highest number of rainy days is April (10.4 days).
The month with the least rainy days is September (0.6 days).
Average snowfall in May
Deh Dalian, Iran
- Average snowfall in May: 0mm
The month with the highest snowfall is February (194mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Deh Dalian, Iran
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Deh Dalian, Iran
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 11h and 42min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in May
Deh Dalian, Iran
- Average sunshine days in May: 20.6 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is April (17.8 days).
Average UV index in May
Deh Dalian, Iran
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Deh Dalian, Iran
- Average cloud cover in May: 12
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in May
Deh Dalian, Iran
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





