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
September
Weather in September
Temperature
September reveals a small adjustment in temperature, transitioning from an average high of an enjoyable 19.4°C (66.9°F) in August to a still refreshing 14.6°C (58.3°F). In September, Strelna's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 9.9°C (49.8°F).Humidity
The average relative humidity in September is 81%.Rainfall
In Strelna, during September, the rain falls for 14.1 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, there are 127.5 rainfall days, and 406mm (15.98") of precipitation is accumulated.Snowfall
In Strelna, snow does not fall in June through September.Sea temperature
In Strelna, the average seawater temperature in September is 14°C (57.2°F).Note: Engaging in a swim in 14°C (57.2°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
In September, the average length of the day is 12h and 52min.On the first day of September, sunrise is at 05:56 and sunset at 20:02. On the last day of the month, sunrise is at 07:04 and sunset at 18:35 MSK.
Sunshine
In September, the average sunshine is 6.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 3 in September transforms into this advice:
Be vigilant - Preventing sunburn is recommended. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Strelna?
Does it snow in September?
How cold is the water in September?
How many hours of daylight does Strelna have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Strelna have in September?
How high is the UV index in September?
Average temperature in September
Strelna, Russia
- Average high temperature in September: 14.6°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-4.3°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is January (-8°C).
Average pressure in September
Strelna, Russia
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in September
Strelna, Russia
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest months (with the lowest average wind speed) are May and July (12.3km/h).
Average humidity in September
Strelna, Russia
- Average humidity in September: 81%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Strelna, Russia
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is August (56mm).
The driest month (with the least rainfall) is November (21mm).
Average rainfall days in September
Strelna, Russia
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Strelna, Russia
- Average snowfall in September: 0mm
The month with the highest snowfall is February (151mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Strelna, Russia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Strelna, Russia
- Average sea temperature in September: 14°C
The best month for swimming (with the highest average sea temperature) is July (19°C).
The coldest month (with the lowest average sea temperature) is February (-0.3°C).
Average daylight in September /
Average sunshine in September
Strelna, Russia
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in September
Strelna, Russia
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is May (18.7 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in September
Strelna, Russia
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Strelna, Russia
- Average cloud cover in September: 52
The month with the most cloud cover is December (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Strelna, Russia
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (6km).
