Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings an increase in high-temperatures, moving from a pleasant 20.6°C (69.1°F) in April to a moderately hot 26.2°C (79.2°F). In the month of May, the average low-temperature usually rests at an enjoyable 17.4°C (63.3°F).Humidity
In May, the average relative humidity in Rayen, Iran, is 22%.Rainfall
May is the last month it rains. During 7.5 rainfall days, in May, Rayen aggregates 11mm (0.43") of precipitation. Throughout the year, there are 54.2 rainfall days, and 126mm (4.96") of precipitation is accumulated.Snowfall
In Rayen, snow does not fall in March through October.Daylight
In Rayen, the average length of the day in May is 13h and 38min.On the first day of the month, sunrise is at 04:57 and sunset at 18:17. On the last day of May, in Rayen, sunrise is at 04:40 and sunset at 18:35 +0330.
Sunshine
In May, the average sunshine in Rayen is 12h.UV index
The months with the highest UV index are May through July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 7 in May transforms into this advice:
Take precautions against overexposure. Protection against sun damage is needed. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the usual temperature for Rayen in May?
What is the average humidity in May in Rayen?
What is the last month it rains in Rayen?
When it does not snow in Rayen?
What is the average length of the day in May in Rayen?
When are sunrise and sunset in May in Rayen?
How long on average sun shines in May in Rayen?
What is the month with the highest UV index in Rayen?
What is the UV index intensity in May in Rayen?
Average temperature in May
Rayen, Iran
- Average high temperature in May: 26.2°C
The warmest month (with the highest average high temperature) is July (31.9°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in May: 17.4°C
The month with the highest average low temperature is July (21.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in May
Rayen, Iran
- Average pressure in May: 1009.5mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is July (1002.8mbar).
Average wind speed in May
Rayen, Iran
- Average wind speed in May: 8.6km/h
The windiest month (with the highest average wind speed) is March (11.3km/h).
The calmest month (with the lowest average wind speed) is December (6.5km/h).
Average humidity in May
Rayen, Iran
- Average humidity in May: 22%
The month with the highest relative humidity is February (40%).
The months with the lowest relative humidity are June and July (14%).
Average rainfall in May
Rayen, Iran
- Average rainfall in May: 11mm
The wettest month (with the highest rainfall) is April (28mm).
The driest months (with the least rainfall) are June, July and September (0mm).
Average rainfall days in May
Rayen, Iran
- Average rainfall days in May: 7.5 days
The month with the highest number of rainy days is April (11.6 days).
The month with the least rainy days is September (0.3 days).
Average snowfall in May
Rayen, Iran
- Average snowfall in May: 0mm
The month with the highest snowfall is January (15mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Rayen, Iran
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Rayen, Iran
- Average daylight in May: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in May: 12h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 18min).
Average sunshine days in May
Rayen, Iran
- Average sunshine days in May: 18.7 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in May
Rayen, Iran
- Average UV index in May: 7
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in May
Rayen, Iran
- Average cloud cover in May: 11
The months with the most cloud cover are February and April (Cloud cover 16).
The month with the least cloud cover is September (Cloud cover 3).
Average visibility in May
Rayen, Iran
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Rayen, Iran
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