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
A modest decline in the average high-temperature is seen during September, decreasing from a warm 25.6°C (78.1°F) in August to a pleasant 21.9°C (71.4°F). An average low-temperature of 15.3°C (59.5°F) is expected in Pietra Ligure, Italy, during September.Humidity
In Pietra Ligure, the average relative humidity in September is 73%.Rainfall
In Pietra Ligure, in September, it is raining for 12.9 days, with typically 43mm (1.69") of accumulated precipitation. Throughout the year, there are 151.4 rainfall days, and 753mm (29.65") of precipitation is accumulated.Snowfall
In Pietra Ligure, snow does not fall in April through November.Sea temperature
In Pietra Ligure, in September, the average water temperature is 22.8°C (73°F).Note: For someone sensitive to cold, swimming in 22.8°C (73°F) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 25°C (77°F) and 28°C (82.4°F).)
Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 06:50 and sunset at 20:02. On the last day of the month, sunrise is at 07:23 and sunset at 19:09 CEST.
Sunshine
In Pietra Ligure, the average sunshine in September is 9.8h.UV index
In Pietra Ligure, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Undertake protective steps - Preventing sun damage is advised. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! Reflecting off water and sand, UV rays are much stronger.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Pietra Ligure?
What is the average humidity in September in Pietra Ligure?
How much does it rain in Pietra Ligure in September?
When it does not snow in Pietra Ligure?
What is the water temperature in September in Pietra Ligure?
What is the average length of the day in September in Pietra Ligure?
When is the sunrise / sunset in September in Pietra Ligure?
How long on average sun shines in September in Pietra Ligure?
What is the UV index reading in September in Pietra Ligure?
Average temperature in September
Pietra Ligure, Italy
- Average high temperature in September: 21.9°C
The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 15.3°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).
Average pressure in September
Pietra Ligure, Italy
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1013.8mbar).
Average wind speed in September
Pietra Ligure, Italy
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is July (7.6km/h).
Average humidity in September
Pietra Ligure, Italy
- Average humidity in September: 73%
The months with the highest relative humidity are June and November (76%).
The months with the lowest relative humidity are January, February, March and December (72%).
Average rainfall in September
Pietra Ligure, Italy
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is November (150mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Pietra Ligure, Italy
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is December (9.1 days).
Average snowfall in September
Pietra Ligure, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Pietra Ligure, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Pietra Ligure, Italy
- Average sea temperature in September: 22.8°C
The best month for swimming (with the highest average sea temperature) is August (24.2°C).
The coldest month (with the lowest average sea temperature) is February (13°C).
Average daylight in September /
Average sunshine in September
Pietra Ligure, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 5min
The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in September
Pietra Ligure, Italy
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Pietra Ligure, Italy
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Pietra Ligure, Italy
- Average cloud cover in September: 22
The month with the most cloud cover is November (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Pietra Ligure, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are April and November (9km).
