Climate and monthly weather forecastSis, Iran
Climate and monthly weather forecast
Weather in January
January, like December, in Sis, Iran, is another cold winter month, with an average temperature varying between -7°C (19.4°F) and 0.3°C (32.5°F). Sis experiences its lowest average temperatures in January, reaching a peak of 0.3°C (32.5°F) and a minimum of -7°C (19.4°F). Weather in January »Weather in February
February, the last month of the winter in Sis, is another cold month, with an average temperature varying between -4.6°C (23.7°F) and 2.8°C (37°F). Sis ushers in February with an average high-temperature of a still wintry 2.8°C (37°F), showing a close resemblance to the previous month. Weather in February »Weather in March
March, the first month of the spring in Sis, is a frosty month, with temperature in the range of an average high of 7.9°C (46.2°F) and an average low of 0.3°C (32.5°F). The onset of March brings a rise in the average high-temperature, elevating from a wintry 2.8°C (37°F) in February to a chilly 7.9°C (46.2°F). Weather in March »Weather in April
April in Sis, Iran, is a mild spring month, with an average temperature ranging between max 14.3°C (57.7°F) and min 5.3°C (41.5°F). As Sis transitions into April, the average high-temperature shows a change, moving from a frosty 7.9°C (46.2°F) in March to a refreshing 14.3°C (57.7°F). Weather in April »Weather in May
May, the last month of the spring in Sis, is an agreeable month, with an average temperature fluctuating between 10.5°C (50.9°F) and 20.8°C (69.4°F). The arrival of May sees a shift in the average high-temperature, moving from a moderate 14.3°C (57.7°F) in April to a pleasant 20.8°C (69.4°F). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Sis, Iran, with an average temperature ranging between max 26.2°C (79.2°F) and min 14.9°C (58.8°F). In June, the average high-temperature increases from an agreeable 20.8°C (69.4°F) in May to a moderately hot 26.2°C (79.2°F). Weather in June »Weather in July
July, the same as June, is another warm summer month in Sis, Iran, with an average temperature ranging between max 29.6°C (85.3°F) and min 17.8°C (64°F). The warmest temperatures occur during July, when averages reach a peak of 29.6°C (85.3°F) and a low of 17.8°C (64°F). During July, the heat index is calculated to be a tropical 30°C (86°F). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Sis, Iran, with an average temperature ranging between min 17.4°C (63.3°F) and max 29.1°C (84.4°F). The onset of August marks an average high-temperature of a still moderately hot 29.1°C (84.4°F), hardly differing from July's 29.6°C (85.3°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Sis, Iran, with an average temperature ranging between min 13.8°C (56.8°F) and max 24.7°C (76.5°F). With the arrival of September, Sis experiences a modest decline in average high-temperatures, transitioning from a warm 29.1°C (84.4°F) in August to a still moderately hot 24.7°C (76.5°F). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Sis, Iran, with temperature in the range of an average low of 7.9°C (46.2°F) and an average high of 17.1°C (62.8°F). The arrival of October indicates a decrease in the average high-temperature, moving from a warm 24.7°C (76.5°F) in September to a refreshing 17.1°C (62.8°F). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Sis, Iran, with an average temperature ranging between max 8.5°C (47.3°F) and min 1.4°C (34.5°F). Sis's transition into November marks a considerable drop in the average high-temperature, moving down from a comfortable 17.1°C (62.8°F) in October to a frosty 8.5°C (47.3°F). Weather in November »Weather in December
December, the first month of the winter in Sis, is also an icy month, with an average temperature ranging between max 3.2°C (37.8°F) and min -3.5°C (25.7°F). As November transitions into December, Sis sees a drop in the average high-temperature, transitioning from a chilly 8.5°C (47.3°F) to a wintry 3.2°C (37.8°F). Weather in December »Updated: Jul 2, 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
January is the month that records the lowest temperatures, with averages ranging from a high of 0.3°C (32.5°F) to a low of -7°C (19.4°F).
The most humid month is January, with an average relative humidity of 79%.
Throughout the year, there are 120.5 rainfall days, and 352mm (13.86") of precipitation is accumulated.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall. Snow falls for 10.5 days and accumulates 184mm (7.24") of snow.
In Sis, during the entire year, snow falls for 33.8 days and aggregates up to 550mm (21.65") of snow.
The months with the least sunshine are January and December, with an average of 6.5h of sunshine.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
The month with the most rainfall is April, when the rain falls for 17.3 days and typically aggregates up to 52mm (2.05") of precipitation.
In Sis, snow does not fall in May through September.
June has the longest days of the year, with an average of 14h and 48min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
With an average high-temperature of 29.6°C (85.3°F) and an average low-temperature of 17.8°C (64°F), July is the warmest month.
The least humid month is August, with an average relative humidity of 42%.
August is the month with the least rainfall. Rain falls for 4.7 days and accumulates 11mm (0.43") of precipitation.
With an average of 12.2h of sunshine, August has the most sunshine of the year.
With an average of 9h and 36min of daylight, December has the shortest days of the year.
Sis does not observe Daylight Saving Time (DST). +0330 timezone is used over the entire year.
Average temperature
Sis, Iran
The warmest month (with the highest average high temperature) is July (29.6°C).
The month with the lowest average high temperature is January (0.3°C).
The month with the highest average low temperature is July (17.8°C).
The coldest month (with the lowest average low temperature) is January (-7°C).
Average pressure
Sis, Iran
- Average pressure in January:
1021.8mbar - Average pressure in February:
1019.8mbar - Average pressure in March:
1016.4mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1013.2mbar - Average pressure in June:
1010.9mbar
- Average pressure in July:
1008.8mbar - Average pressure in August:
1010.9mbar - Average pressure in September:
1014mbar - Average pressure in October:
1018.2mbar - Average pressure in November:
1021.2mbar - Average pressure in December:
1022.4mbar
The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed
Sis, Iran
- Average wind speed in January:
7.3km/h - Average wind speed in February:
7.6km/h - Average wind speed in March:
9.7km/h - Average wind speed in April:
10km/h - Average wind speed in May:
10.1km/h - Average wind speed in June:
10.3km/h
- Average wind speed in July:
11.8km/h - Average wind speed in August:
11.3km/h - Average wind speed in September:
9.2km/h - Average wind speed in October:
8.3km/h - Average wind speed in November:
7km/h - Average wind speed in December:
6.8km/h
The windiest month (with the highest average wind speed) is July (11.8km/h).
The calmest month (with the lowest average wind speed) is December (6.8km/h).
Average humidity
Sis, Iran
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Sis, Iran
The wettest month (with the highest rainfall) is April (52mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days
Sis, Iran
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
8.6 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
16.5 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
4.7 days - Average rainfall days in September:
6.7 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is April (17.3 days).
The month with the least rainy days is August (4.7 days).
Average snowfall
Sis, Iran
The month with the highest snowfall is January (184mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
Sis, Iran
- Average snowfall days in January:
10.5 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
5 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in November:
1.9 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Sis, Iran
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 36min
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 36min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
7h and 54min - Average sunshine in March:
8h and 36min - Average sunshine in April:
10h and 12min - Average sunshine in May:
11h and 30min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
12h and 12min - Average sunshine in September:
10h and 12min - Average sunshine in October:
7h and 42min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 30min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 6h and 30min).
Average sunshine days
Sis, Iran
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
12 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
8.5 days - Average sunshine days in June:
12.6 days
- Average sunshine days in July:
20.4 days - Average sunshine days in August:
22.7 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is May (8.5 days).
Average UV index
Sis, 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, November and December (UV index 2).
Average cloud cover
Sis, Iran
The month with the most cloud cover is January (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility
Sis, Iran
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
