Climate Overview
The climate in Khomeyn is temperate. The average annual temperature is 14°C and approximately 249mm of precipitation falls per year. March is the wettest month, receiving around 43mm of rainfall. Khomeyn is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -5°C. Light snow can occur between January and December.
Temperature
Khomeyn has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 34°C and the mean temperature sits around 27°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is 1°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.
Precipitation
Khomeyn is a quite dry location, receiving approximately 249mm of precipitation annually, which averages out to around 21mm per month. The wettest month is March, averaging 43mm of rainfall. April and February also tend to see above-average precipitation. The driest month is August, with just 0mm. That's 43mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 44cm annually. January is the snowiest month with approximately 13cm.
Wind
Khomeyn is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 20km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in December, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Khomeyn, which began on March 20, 2026. Khomeyn is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 34°C, while the coldest stretch bottoms out in January near -5°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 1 to 24°C. Rainfall is relatively light, with around 108mm over the season and a monthly average of 36mm. Winds are moderate at around 20km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 16 to 34°C. Precipitation is minimal, with only around 6mm for the entire season. Winds are moderate at around 17km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 1 to 29°C. Precipitation is minimal, with only around 40mm for the entire season. Winds are generally light, averaging 15km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -5 to 9°C. Rainfall is relatively light, with around 95mm over the season and a monthly average of 32mm. Expect around 37cm of snow accumulation during this period. Winds are generally light, averaging 15km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Best Time to Visit
The best time to visit Khomeyn is during May, June and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 10mm per month. By contrast, July can be uncomfortably hot with highs reaching 34°C, while January is the coldest period with lows dropping to -5°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Khomeyn based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.