September weather forecastGrimalda, Croatia
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Grimalda, Croatia, with an average temperature fluctuating between 22.5°C (72.5°F) and 18.9°C (66°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 26.9°C (80.4°F) in August to an agreeable 22.5°C (72.5°F). In Grimalda, the September nights are characterized by an average low-temperature of 18.9°C (66°F), a minor dip from daytime readings.Humidity
The average relative humidity in September in Grimalda is 69%.Rainfall
In Grimalda, in September, it is raining for 12.8 days, with typically 84mm (3.31") of accumulated precipitation. In Grimalda, during the entire year, the rain falls for 157.3 days and collects up to 720mm (28.35") of precipitation.Snowfall
January, April through November are months without snowfall in Grimalda.Daylight
In Grimalda, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:26 and sunset at 19:41. On the last day of the month, sunrise is at 07:01 and sunset at 18:46 CEST.
Sunshine
In September, the average sunshine in Grimalda is 10.4h.UV index
In Grimalda, Croatia, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grimalda, Croatia
- Average high temperature in September: 22.5°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in September: 18.9°C
The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (5.6°C).
Average pressure in September
Grimalda, Croatia
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is July (1014.3mbar).
Average wind speed in September
Grimalda, Croatia
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is February (16.7km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in September
Grimalda, Croatia
- Average humidity in September: 69%
The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Grimalda, Croatia
- Average rainfall in September: 84mm
The wettest month (with the highest rainfall) is November (89mm).
The driest month (with the least rainfall) is January (35mm).
Average rainfall days in September
Grimalda, Croatia
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is August (11.1 days).
Average snowfall in September
Grimalda, Croatia
- Average snowfall in September: 0mm
The months with the highest snowfall are February, March and December (1mm).
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Grimalda, Croatia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Grimalda, Croatia
- Average daylight in September: 12h and 30min
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 24min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Grimalda, Croatia
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is March (17.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in September
Grimalda, Croatia
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Grimalda, Croatia
- Average cloud cover in September: 25
The months with the most cloud cover are January and February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Grimalda, Croatia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





