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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Isti, Iran, with an average temperature varying between 5°C (41°F) and -0.4°C (31.3°F). January, noted for its average high-temperature of 5°C (41°F) and an average low-temperature of -0.4°C (31.3°F), is considered the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Isti, is another cold month, with an average temperature fluctuating between -0.5°C (31.1°F) and 5.4°C (41.7°F). Isti observes a minor difference in average high-temperatures between January's 5°C (41°F) and February's 5.4°C (41.7°F). Weather in February »
Weather in March
March, the first month of the spring in Isti, is a fresh month, with an average temperature fluctuating between 10.1°C (50.2°F) and 2.5°C (36.5°F). The shift into March brings a slight increase in the average high-temperature, moving from a wintry 5.4°C (41.7°F) in February to a cool 10.1°C (50.2°F). Weather in March »
Weather in April
April in Isti, Iran, is a refreshing spring month, with an average temperature ranging between min 5.5°C (41.9°F) and max 13.8°C (56.8°F). Isti's April weather indicates a minor increase in high-temperatures, edging from March's cool 10.1°C (50.2°F) to a refreshing 13.8°C (56.8°F). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Isti, Iran, with temperature in the range of an average low of 10.8°C (51.4°F) and an average high of 20.3°C (68.5°F). Isti, Iran, sees a rise in temperature during May, with average high-temperatures transitioning from a mild 13.8°C (56.8°F) in April to a pleasant 20.3°C (68.5°F). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Isti, Iran, with an average temperature varying between 24.8°C (76.6°F) and 14.8°C (58.6°F). June introduces a minor temperature shift, with average high-temperatures adjusting from May's pleasant 20.3°C (68.5°F) to a warm 24.8°C (76.6°F). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Isti, Iran, with temperature in the range of an average low of 17.3°C (63.1°F) and an average high of 27.3°C (81.1°F). In Isti, the average temperatures in July are the highest, with a peak at 27.3°C (81.1°F) and a low of 17.3°C (63.1°F). July's heat index is estimated at 28°C (82.4°F). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Isti, Iran, with an average temperature ranging between max 26.2°C (79.2°F) and min 17°C (62.6°F). Isti experiences a minor change to a still warm 26.2°C (79.2°F) in average high-temperature during August, closely reflecting July. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Isti, Iran, with temperature in the range of an average low of 14.8°C (58.6°F) and an average high of 21.9°C (71.4°F). The arrival of September correlates with a minor temperature reduction, down from August's warm 26.2°C (79.2°F) to a pleasant 21.9°C (71.4°F). Weather in September »
Weather in October
October, like September, in Isti, Iran, is another refreshing autumn month, with an average temperature varying between 16.5°C (61.7°F) and 10.3°C (50.5°F). As September transitions to October, the average high-temperature falls from a pleasant 21.9°C (71.4°F) to a comfortable 16.5°C (61.7°F). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Isti, Iran, with an average temperature varying between 4.4°C (39.9°F) and 10.3°C (50.5°F). Onset of November witnesses a reduction in the average high-temperature, falling from a comfortable 16.5°C (61.7°F) in October to a fresh 10.3°C (50.5°F). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Isti, Iran, with an average temperature ranging between min 1.1°C (34°F) and max 7°C (44.6°F). December reveals a small adjustment in temperature, transitioning from an average high of a fresh 10.3°C (50.5°F) in November to a chilly 7°C (44.6°F). Weather in December »
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Isti?
January, having an average high-temperature of 5°C (41°F) and an average low-temperature of -0.4°C (31.3°F), is the coldest month in Isti, Iran.
How many days does it rain in Isti?
Throughout the year, there are 131.9 rainfall days, and 530mm (20.87") of precipitation is accumulated.
When does it snow in Isti?
Months with snowfall in Isti, Iran, are January through April, October through December.
When does it snow the most in Isti?
The month with the most snowfall in Isti, Iran, is January, when snow falls for 11.1 days and typically aggregates up to 415mm (16.34") of snow.
How many days does it snow in Isti?
Throughout the year, there are 47.2 snowfall days, and 1795mm (70.67") of snow is accumulated.
What is the month with the lowest UV index in Isti?
The months with the lowest UV index in Isti, Iran, are January through March and December, with an average maximum UV index of 2.
When it does not snow in Isti?
May through September are months without snowfall.
When are the longest days in Isti?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What month has the most sunshine in Isti?
The month with the most sunshine in Isti is June, with an average of 11.8h of sunshine.
What are the months with the highest UV index in Isti?
The months with the highest UV index in Isti, Iran, are June through August, with an average maximum UV index of 6.
What part of the year is the hottest in Isti?
July, on average, is the warmest month, registering a high temperature of 27.3°C (81.1°F) and a low of 17.3°C (63.1°F).
What is the least humid month in Isti?
July is the least humid month, with an average relative humidity of 57%.
What is the driest month in Isti?
July is the month with the least rainfall. Rain falls for 7.6 days and accumulates 13mm (0.51") of precipitation.
What is the most humid month in Isti?
The most humid month in Isti is October, with an average relative humidity of 78%.
What is the wettest month in Isti?
The month with the most rainfall is November, when the rain falls for 13.3 days and typically aggregates up to 77mm (3.03") of precipitation.
What is the month with the least sunshine in Isti?
The month with the least sunshine in Isti is November, with an average of 5.5h of sunshine.
What is the month with the shortest days in Isti?
December has the shortest days of the year in Isti, with an average of 9h and 30min of daylight.
Is there Daylight Saving Time (DST) in Isti?
Isti, Iran, does not observe Daylight Saving Time (DST). +0330 timezone is used throughout the entire year.
Average temperature
Isti, Iran
The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is January (5°C).
The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).
Average pressure
Isti, Iran
- Average pressure in January:
1020.7mbar - Average pressure in February:
1020.1mbar - Average pressure in March:
1016.9mbar - Average pressure in April:
1016mbar - Average pressure in May:
1013.2mbar - Average pressure in June:
1010.9mbar
- Average pressure in July:
1009.4mbar - Average pressure in August:
1011.8mbar - Average pressure in September:
1014.8mbar - Average pressure in October:
1019.1mbar - Average pressure in November:
1022.1mbar - Average pressure in December:
1022mbar
The month with the highest atmospheric pressure is November (1022.1mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed
Isti, Iran
- Average wind speed in January:
8.5km/h - Average wind speed in February:
8.7km/h - Average wind speed in March:
9km/h - Average wind speed in April:
8.6km/h - Average wind speed in May:
8.2km/h - Average wind speed in June:
9.4km/h
- Average wind speed in July:
10km/h - Average wind speed in August:
10km/h - Average wind speed in September:
9.2km/h - Average wind speed in October:
9km/h - Average wind speed in November:
7.9km/h - Average wind speed in December:
7.7km/h
The windiest months (with the highest average wind speed) are July and August (10km/h).
The calmest month (with the lowest average wind speed) is December (7.7km/h).
Average humidity
Isti, Iran
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is July (57%).
Average rainfall
Isti, Iran
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days
Isti, Iran
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
16 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
7.6 days - Average rainfall days in August:
6.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
16.3 days - Average rainfall days in November:
13.3 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is October (16.3 days).
The month with the least rainy days is August (6.5 days).
Average snowfall
Isti, Iran
- Average snowfall in January:
415mm - Average snowfall in February:
393mm - Average snowfall in March:
298mm - Average snowfall in April:
192mm - Average snowfall in May:
0mm - Average snowfall in June:
0mm
The month with the highest snowfall is January (415mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
Isti, Iran
- Average snowfall days in January:
11.1 days - Average snowfall days in February:
12.5 days - Average snowfall days in March:
8.4 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
4.4 days - Average snowfall days in December:
7.2 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Isti, Iran
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
7h and 1min - Average sunshine in March:
7h and 4min - Average sunshine in April:
8h and 3min - Average sunshine in May:
11h and 2min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 3min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
5h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 30min).
Average sunshine days
Isti, Iran
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
8.2 days - Average sunshine days in May:
8.8 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
21.3 days - Average sunshine days in August:
21.8 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
11 days - Average sunshine days in November:
12.6 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is April (8.2 days).
Average UV index
Isti, Iran
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover
Isti, Iran
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility
Isti, Iran
The months with the highest visibility are May, June, July and August (10km).
The month with the lowest visibility is February (8km).
