The weather in September in Istiaía

It's warm in September in Istiaía with an average temperature of 28°C. Temperatures this month range from a low of 24°C to a high of 31°C. At night, you can expect temperatures between 15°C and 20°C.

Looking for great weather? September is a good time to be in Istiaía. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Istiaía, Evia (Euboea). A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 40°C in 2015, Istiaía reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 17°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 25°C.

Rainfall amount

In September, there is an average of 80 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the South.

Daily weather in September for Istiaía

Click on any day in September to get detailed info about the usual weather on that day in Istiaía. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Istiaía New York
Average temperature 28°C 27°C
Max. temperature 31°C 31°C
Min. temperature 15°C -5°C
Total precipitation 80 mm 57 mm
Rainy days 9 days 9 days

Start of September

The month of September starts in Istiaía with hot temps, averaging around 30°C during the day and nights around 20°C.

Mid September

By mid-September, daytime temps drop to around 29°C, with nights around 19°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of September

By the end of September, the average daytime temperature in Istiaía is around 26°C, while nighttime temps are about 16°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Istiaía for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Istiaía, Evia (Euboea). The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Istiaía

Temperature in September in Istiaía over the years

Precipitation charts

These charts show the average amount of precipitation in September in Istiaía, Evia (Euboea). Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Istiaía

Total precipitation in September in Istiaía over the years

Daily UV index in September in Istiaía

This chart shows the average daily UV index in September in Istiaía, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Istiaía

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Average weather in Istiaía by month

Click on a month below to see detailed weather info for Istiaía. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.