September weather forecastSiacu, Romania
September
Weather in September
The first month of the autumn, September, is still a warm month in Siacu, Romania, with an average temperature fluctuating between 11.7°C (53.1°F) and 23.3°C (73.9°F).Temperature
The shift from August to September involves a decrease in the average high-temperature, from 28.9°C (84°F) to a still moderately hot 23.3°C (73.9°F). Siacu experiences an average low-temperature reading of 11.7°C (53.1°F) throughout September.Humidity
The average relative humidity in September is 59%.Rainfall
The month with the least rainfall is September, when the rain falls for 6.9 days and typically collects 14mm (0.55") of precipitation.Snowfall
In Siacu, snow does not fall in May through October.Daylight
In Siacu, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 06:50 and sunset at 20:04. On the last day of September, sunrise is at 07:24 and sunset at 19:09 EEST.
Sunshine
The average sunshine in September is 10.1h.UV index
In Siacu, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siacu, Romania
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average pressure in September
Siacu, Romania
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).
Average wind speed in September
Siacu, Romania
- Average wind speed in September: 7.1km/h
The windiest months (with the highest average wind speed) are March and April (7.5km/h).
The calmest month (with the lowest average wind speed) is November (5.6km/h).
Average humidity in September
Siacu, Romania
- Average humidity in September: 59%
The months with the highest relative humidity are January and February (81%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Siacu, Romania
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is May (59mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Siacu, Romania
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is September (6.9 days).
Average snowfall in September
Siacu, Romania
- Average snowfall in September: 0mm
The month with the highest snowfall is February (78mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Siacu, Romania
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Siacu, Romania
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 10h and 6min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Siacu, Romania
- Average sunshine days in September: 19.4 days
The months with the most sunshine days are September and October (19.4 days).
The month with the least sunshine days is June (7.6 days).
Average UV index in September
Siacu, Romania
- Average UV index in September: 4
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, November and December (UV index 2).
Average cloud cover in September
Siacu, Romania
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Siacu, Romania
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January and February (8km).
