Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September involves a subtle temperature drop, shifting from a comfortable 16.8°C (62.2°F) in August to a fresh 12°C (53.6°F). Throughout September, Ayan observes a steady low-temperature average of 7.7°C (45.9°F), reflecting a minor dip from daytime highs.Humidity
The average relative humidity in September in Ayan is 72%.Rainfall
In Ayan, in September, during 11.3 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Ayan, during the entire year, the rain falls for 73.9 days and collects up to 485mm (19.09") of precipitation.Snowfall
June through September are months without snowfall.Sea temperature
In September, the average sea temperature in Ayan is 10.8°C (51.4°F).Note: Dipping into 10.8°C (51.4°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 13°C (55.4°F) feels cold to the bone.
Daylight
In Ayan, the average length of the day in September is 12h and 47min.On the first day of the month, sunrise is at 05:51 and sunset at 19:43. On the last day of September, in Ayan, sunrise is at 06:48 and sunset at 18:25 +10.
Sunshine
In September, the average sunshine in Ayan is 7.5h.UV index
In September, the average daily maximum UV index in Ayan is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during September morphs into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What are September temperatures in Ayan?
What is the average humidity in September in Ayan?
How much does it rain in Ayan in September?
When it does not snow in Ayan?
Does it snow in Ayan in September?
How cold is the water in September in Ayan?
How many hours of daylight does Ayan have in September?
What time are sunrise and sunset in September in Ayan?
How many hours of sunshine does Ayan have in September?
What is the UV index intensity in September in Ayan?
Average temperature in September
Ayan, Russia
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is August (16.8°C).
The month with the lowest average high temperature is January (-17.8°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is August (12.4°C).
The coldest months (with the lowest average low temperature) are January and February (-22.1°C).
Average pressure in September
Ayan, Russia
- Average pressure in September: 1010.5mbar
The month with the highest atmospheric pressure is January (1018.6mbar).
The month with the lowest atmospheric pressure is July (1007.7mbar).
Average wind speed in September
Ayan, Russia
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is December (22km/h).
The calmest month (with the lowest average wind speed) is July (11.4km/h).
Average humidity in September
Ayan, Russia
- Average humidity in September: 72%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Ayan, Russia
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is May (71mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
Ayan, Russia
- Average rainfall days in September: 11.3 days
The months with the highest number of rainy days are June and August (12.3 days).
The month with the least rainy days is February (0.3 days).
Average snowfall in September
Ayan, Russia
- Average snowfall in September: 0mm
The month with the highest snowfall is April (182mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ayan, Russia
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is April (13.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in September
Ayan, Russia
- Average sea temperature in September: 10.8°C
The best month for swimming (with the highest average sea temperature) is August (14.4°C).
The coldest months (with the lowest average sea temperature) are January, February and March (-1.8°C).
Average daylight in September /
Average sunshine in September
Ayan, Russia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Ayan, Russia
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is April (15 days).
Average UV index in September
Ayan, Russia
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is March (UV index 1).
Average cloud cover in September
Ayan, Russia
- Average cloud cover in September: 43
The month with the most cloud cover is April (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 43).
Average visibility in September
Ayan, Russia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are April and May (8km).
Ayan, Russia
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