The best times to visit Semnan for ideal weather are

March 26th to May 27th

or

September 17th to November 11th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Semnan Travel Info

Weather in Semnan

Temperature

Average temperatures in Semnan vary an incredible amount. Considering humidity, temperatures feel very nice much of the year, but hot in the summer and cold in the winter with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 48th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Semnan, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid July where highs are regularly around 102.7°F (39.3°C) with temperatures rarely dropping below 81.1°F (27.3°C) at night.

Semnan Temperatures (Fahrenheit)

Key
High
Average
Low

Semnan Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Semnan Perceived Temperature (F)

Key
High
Average
Low

Semnan Perceived Temperature (C)

Key
High
Average
Low

 

Average Semnan Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 48.5 38.8 30.2
Feb 53.3 43.9 34.7
Mar 65.2 54.9 44
Apr 76.8 66.1 54.8
May 87.7 77.3 65.4
Jun 97.3 86.7 75.3
Jul 101.3 90.5 79.4
Aug 98.5 87.5 76.2
Sep 91.1 79.8 68.3
Oct 78.7 67.8 57
Nov 61.8 52 43.2
Dec 50.7 41.3 33.2

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 9.2 3.8 -1
Feb 11.8 6.6 1.5
Mar 18.4 12.7 6.7
Apr 24.9 18.9 12.7
May 30.9 25.2 18.6
Jun 36.3 30.4 24.1
Jul 38.5 32.5 26.3
Aug 36.9 30.8 24.6
Sep 32.8 26.6 20.2
Oct 25.9 19.9 13.9
Nov 16.6 11.1 6.2
Dec 10.4 5.2 0.7

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Semnan are July, September, and then August. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid June. For example, on the week of June 18th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late January and early February with an average of 1 days of significant precipitation the week of January 29th.

When can you find snow in Semnan? Weather stations report large amounts of snow likely to be deepest around December, especially close to early to mid January. The best time to ski (if at all) in Semnan is often around around January 8th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Semnan.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Semnan (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 3% 7 0.4
Feb 8% 1.6 1
Mar 7% 0 0.7
Apr 7% 0 0.6
May 2% 0 0.2
Jun 4% 0 0.3
Jul 0% 0 0
Aug 2% 0 0.2
Sep 1% 0 0.2
Oct 3% 0 0.2
Nov 6% 0 0.7
Dec 4% 8.7 0.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 17.8 1
Feb 8 4.1 2.5
Mar 7 0 1.8
Apr 7 0 1.5
May 2 0 0.5
Jun 4 0 0.8
Jul 0 0 0
Aug 2 0 0.5
Sep 1 0 0.5
Oct 3 0 0.5
Nov 6 0 1.8
Dec 4 22.1 1

 

Humidity and Wind

Semnan has some comfortably humid months, with some very dry months. The least humid month is June (13.6% relative humidity), and the most humid month is December (51%).

Wind in Semnan is usually calm. The windiest month is June, followed by July and May. June’s average wind speed of around 6.2 knots (7.1 MPH or 11.4 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid June where average top sustained speeds reach 15 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Semnan.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 2.4 Barely noticeable 6.8 Light breeze
Feb 3.1 Barely noticeable 8.6 Gentle breeze
Mar 4.1 Light breeze 11 Light breeze
Apr 4.9 Light breeze 12.6 Significant breeze
May 5.5 Light breeze 14.2 Light breeze
Jun 6.2 Light breeze 14.5 Significant breeze
Jul 5.7 Light breeze 13.2 Light breeze
Aug 4.9 Light breeze 11.9 Significant breeze
Sep 4 Light breeze 10.7 Light breeze
Oct 3.3 Barely noticeable 9.6 Gentle breeze
Nov 2.6 Barely noticeable 7.3 Light breeze
Dec 2.1 Barely noticeable 5.9 Light breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 47.8%
Feb 42.6%
Mar 28.3%
Apr 22.7%
May 15.9%
Jun 13.6%
Jul 14.1%
Aug 15.2%
Sep 18.3%
Oct 25.9%
Nov 42.8%
Dec 51%

 

Is it Safe to Travel to Semnan?

Our best data indicates this area is generally not safe. As of Dec 04, 2023 there are very strong travel warnings for Iran; avoid all travel. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Oct 26, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Semnan, Iran is June, followed by July and January. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Semnan in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 76.6 in November means 76.6% of the tourists vs. June.

 

 

Overall Semnan Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 93.9°F (34.4°C) and 58.1°F (14.5°C) with far warmer temperatures in the later months. Rain is rare with 1 to 2 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have hot weather with high temperatures that are quite warm. These months see the least precipitation with 0 to 1 days of precipitation per month. June – August is the busiest season for tourism in Semnan, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 94.2°F (34.6°C) and 56.1°F (13.4°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 0 to 2 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Semnan to be enjoyable for warm weather travelers. The average high during this season is between 58.1°F (14.5°C) and 46.1°F (7.8°C). On average, it rains or snows a smalll amount: 1 to 2 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travel› Babol, Iran › Semnan, Iran