Climate and Average Weather Year Round at Rasht Airport Iran

At Rasht Airport, the summers are warm, muggy, and clear and the winters are long, cold, and partly cloudy. Over the course of the year, the temperature typically varies from 37°F to 87°F and is rarely below 30°F or above 93°F.

Based on the beach/pool score, the best time of year to visit Rasht Airport for hot-weather activities is from early June to early September.

The hot season lasts for 3.4 months, from June 2 to September 14, with an average daily high temperature above 79°F. The hottest month of the year at Rasht Airport is July, with an average high of 85°F and low of 70°F.

The cool season lasts for 3.8 months, from November 29 to March 23, with an average daily high temperature below 58°F. The coldest month of the year at Rasht Airport is February, with an average low of 38°F and high of 51°F.

At Rasht Airport, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year at Rasht Airport begins around May 19 and lasts for 4.6 months, ending around October 7.

The clearest month of the year at Rasht Airport is August, during which on average the sky is clear, mostly clear, or partly cloudy 99% of the time.

The cloudier part of the year begins around October 7 and lasts for 7.4 months, ending around May 19.

The cloudiest month of the year at Rasht Airport is November, during which on average the sky is overcast or mostly cloudy 49% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Rasht Airport varies throughout the year.

The wetter season lasts 6.7 months, from September 2 to March 24, with a greater than 20% chance of a given day being a wet day. The month with the most wet days at Rasht Airport is November, with an average of 9.5 days with at least 0.04 inches of precipitation.

The drier season lasts 5.3 months, from March 24 to September 2. The month with the fewest wet days at Rasht Airport is June, with an average of 2.2 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Rasht Airport is November, with an average of 9.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 34% on October 29.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Rasht Airport experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Rasht Airport. The month with the most rain at Rasht Airport is October, with an average rainfall of 4.6 inches.

The month with the least rain at Rasht Airport is June, with an average rainfall of 0.5 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Rasht Airport experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 1.3 months, from January 4 to February 12, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Rasht Airport is January, with an average snowfall of 1.3 inches.

The snowless period of the year lasts for 11 months, from February 12 to January 4. The least snow falls around July 24, with an average total accumulation of 0.0 inches.

The length of the day at Rasht Airport varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 35 minutes of daylight; the longest day is June 21, with 14 hours, 44 minutes of daylight.

The earliest sunrise is at 4:50 AM on June 13, and the latest sunrise is 2 hours, 36 minutes later at 7:26 AM on January 6. The earliest sunset is at 4:53 PM on December 6, and the latest sunset is 2 hours, 43 minutes later at 7:36 PM on June 28.

Daylight saving time (DST) is not observed at Rasht Airport during 2024.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Rasht Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.6 months, from May 21 to October 9, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The month with the most muggy days at Rasht Airport is August, with 27.7 days that are muggy or worse.

The least muggy day of the year is February 14, when muggy conditions are essentially unheard of.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Rasht Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.8 months, from June 14 to March 8, with average wind speeds of more than 6.3 miles per hour. The windiest month of the year at Rasht Airport is December, with an average hourly wind speed of 7.0 miles per hour.

The calmer time of year lasts for 3.2 months, from March 8 to June 14. The calmest month of the year at Rasht Airport is May, with an average hourly wind speed of 5.5 miles per hour.

The predominant average hourly wind direction at Rasht Airport varies throughout the year.

The wind is most often from the east for 3.7 months, from February 3 to May 26 and for 2.3 months, from September 18 to November 26, with a peak percentage of 51% on October 14. The wind is most often from the north for 3.7 months, from May 26 to September 18, with a peak percentage of 70% on July 13. The wind is most often from the south for 2.2 months, from November 26 to February 3, with a peak percentage of 38% on January 1.

Rasht Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.4 months, from June 16 to September 29, with an average temperature above 75°F. The month of the year at Rasht Airport with the warmest water is August, with an average temperature of 81°F.

The time of year with cooler water lasts for 3.8 months, from December 24 to April 16, with an average temperature below 56°F. The month of the year at Rasht Airport with the coolest water is February, with an average temperature of 50°F.

To characterize how pleasant the weather is at Rasht Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Rasht Airport for general outdoor tourist activities are from mid May to early July and from early September to early October, with a peak score in the first week of June.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Rasht Airport for hot-weather activities is from early June to early September, with a peak score in the second week of July.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Rasht Airport typically lasts for 10 months (308 days), from around February 23 to around December 26, rarely starting after March 23, or ending before December 5.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms at Rasht Airport should appear around March 12, only rarely appearing before February 10 or after April 6.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.2 months, from May 11 to August 18, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year at Rasht Airport is June, with an average of 7.7 kWh.

The darker period of the year lasts for 3.6 months, from October 25 to February 14, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year at Rasht Airport is December, with an average of 2.2 kWh.

For the purposes of this report, the geographical coordinates of Rasht Airport are 37.325 deg latitude, 49.606 deg longitude, and -56 ft elevation.

The topography within 2 miles of Rasht Airport is essentially flat, with a maximum elevation change of 69 feet and an average elevation above sea level of -48 feet. Within 10 miles is essentially flat (302 feet). Within 50 miles contains only modest variations in elevation (10,384 feet).

The area within 2 miles of Rasht Airport is covered by cropland (45%), artificial surfaces (43%), and bare soil (12%), within 10 miles by cropland (74%), and within 50 miles by water (37%) and trees (30%).