IranAverage weather for Semnān in May
It's warm in May in Semnān with an average temperature of 29°C. Temperatures this month range from a low of 26°C to a high of 32°C. At night, you can expect temperatures between 16°C and 21°C.
Start of May
The month of May starts in Semnān with hot temps, averaging around 28°C during the day and nights around 17°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid May
By mid-May, daytime temps rise to around 29°C, with nights around 18°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers.
End of May
By the end of May, the average daytime temperature in Semnān is around 32°C, while nighttime temps are about 20°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
In May, there is an average of 27 mm of precipitation, spread over 5 days. The wind speed is around 4 Bft, mostly coming from the South.
Semnān in May |
New York | ||
|---|---|---|---|
 Average temperature |
29°C | 22°C | |
 Max. temperature |
32°C | 28°C | |
| Min. temperature |
26°C | -5°C | |
 Total precipitation |
27 mm | 105 mm | |
| Rainy days |
5 days | 14 days | |
April
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Semnān?
Looking for great weather? May is a good time to be in Semnān. The temperatures are nice, and there’s not too much rain.
Temperature records
With 42°C in 2015, Semnān reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 16°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 26°C.
Check out the climate of Semnān for all months and discover the best travel time
Daily Temperature in May in Semnān
This chart shows the average daily high and low temperatures in May for Semnān, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Semnān
The chart below shows the average daily precipitation in May for Semnān, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 5 days of precipitation in Semnān.
Daily UV index in May in Semnān
This chart shows the average daily UV index in May in Semnān, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Semnān over the years
This chart shows the average temperature in May in Semnān, measured in degrees Celsius, over the past few years.
Total precipitation in May in Semnān over the years
This chart shows the average precipitation in May in Semnān, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Semnān
Click on any day in May to get detailed info about the usual weather on that day in Semnān. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Semnān
Have you been to Semnān in May?
Share your weather experience in May in Semnān.
Average weather in Semnān by month
Click on a month below to see detailed weather info for Semnān. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
