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
Grado in September experiences a subtle temperature decline, with average high-temperatures reducing from a moderately hot 28°C (82.4°F) in August to a still warm 23°C (73.4°F). During the nights in September, Grado experiences a consistent average temperature of 15.4°C (59.7°F).Humidity
In Grado, the average relative humidity in September is 71%.Rainfall
In Grado, during September, the rain falls for 13.1 days and regularly aggregates up to 88mm (3.46") of precipitation. In Grado, during the entire year, the rain falls for 140.6 days and collects up to 812mm (31.97") of precipitation.Snowfall
In Grado, snow does not fall in April through November.Sea temperature
In Grado, in September, the average water temperature is 23.4°C (74.1°F).Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 23.4°C (74.1°F) waters. (As an aside, Olympic swimming standards dictate water temperatures from 25°C (77°F) to 28°C (82.4°F).)
Daylight
In Grado, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:28 and sunset at 19:44. On the last day of the month, sunrise is at 07:04 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine is 10.3h.UV index
In Grado, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in September translates into these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Attention! The combination of sand and water reflections enhances UV ray intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grado in September?
What is the average humidity in September in Grado?
How many days does it rain in September in Grado?
When it does not snow in Grado?
What is the water temperature in September in Grado?
What is the average length of the day in September in Grado?
When are sunrise and sunset in September in Grado?
How long on average sun shines in September in Grado?
What is the UV index reading in September in Grado?
Average temperature in September
Grado, Italy
- Average high temperature in September: 23°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 15.4°C
The month with the highest average low temperature is August (19.2°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in September
Grado, Italy
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The months with the lowest atmospheric pressure are May and June (1014.8mbar).
Average wind speed in September
Grado, Italy
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is June (8.8km/h).
Average humidity in September
Grado, Italy
- Average humidity in September: 71%
The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are July and August (66%).
Average rainfall in September
Grado, Italy
- Average rainfall in September: 88mm
The wettest month (with the highest rainfall) is November (134mm).
The driest month (with the least rainfall) is January (33mm).
Average rainfall days in September
Grado, Italy
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Grado, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Grado, Italy
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.5 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
Grado, Italy
- Average sea temperature in September: 23.4°C
The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is February (8.8°C).
Average daylight in September /
Average sunshine in September
Grado, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The months with the least sunshine are February and November (Average sunshine: 5h and 24min).
Average sunshine days in September
Grado, Italy
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
Grado, Italy
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Grado, Italy
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Grado, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).
