Climate and monthly weather forecastIstro, Greece
Climate and monthly weather forecast
The best time to visit Istro
August is the best period for swimming and other water activities in Istro, Greece, as the sea temperature is 25°C (77°F) and the rain falls for only 0.4 days.Weather in January
January, like December, is a moderate winter month in Istro, Greece, with an average temperature varying between 11.5°C (52.7°F) and 14.2°C (57.6°F). January brings the lowest temperatures, with an average high of 14.2°C (57.6°F) and an average low of 11.5°C (52.7°F). Weather in January »Weather in February
February, the last month of the winter in Istro, is also a moderate month, with temperature in the range of an average high of 14.8°C (58.6°F) and an average low of 11.8°C (53.2°F). The onset of February manifests an average high-temperature of a still moderate 14.8°C (58.6°F), demonstrating a minor variation from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Istro, is still a mild month, with an average temperature ranging between max 15.9°C (60.6°F) and min 12.4°C (54.3°F). Upon the onset of March, Istro witnesses an average high-temperature of a still refreshing 15.9°C (60.6°F), showing a close resemblance to the prior month. Weather in March »Weather in April
April is a refreshing spring month in Istro, Greece, with an average temperature varying between 14.4°C (57.9°F) and 18.2°C (64.8°F). April reports an average high-temperature of a comfortable 18.2°C (64.8°F), slightly varied from March's 15.9°C (60.6°F). Weather in April »Weather in May
May, the last month of the spring in Istro, is a pleasant month, with an average temperature varying between 21.7°C (71.1°F) and 17.8°C (64°F). A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from an enjoyable 18.2°C (64.8°F) to an agreeable 21.7°C (71.1°F). Weather in May »Weather in June
June, the first month of the summer in Istro, is a warm month, with an average temperature fluctuating between 21°C (69.8°F) and 25.2°C (77.4°F). A subtle rise in the average high-temperature is observed during June, adjusting from a pleasant 21.7°C (71.1°F) in May to a warm 25.2°C (77.4°F). Weather in June »Weather in July
July, like June, in Istro, Greece, is another warm summer month, with an average temperature ranging between max 27.5°C (81.5°F) and min 23.4°C (74.1°F). With July's arrival, Istro notes an average high-temperature of a still moderately hot 27.5°C (81.5°F), closely following the trend of the preceding month. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Istro, Greece, with an average temperature varying between 28.1°C (82.6°F) and 23.7°C (74.7°F). The ideal sea water temperature of 25°C (77°F) and only 0.4 rainfall days makes August the best time for swimming and other water activities. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Istro, Greece, with an average temperature varying between 25.9°C (78.6°F) and 22.2°C (72°F). The weather during September records an average high-temperature of a still moderately hot 25.9°C (78.6°F), closely mirroring the preceding month. Weather in September »Weather in October
October, like September, is an agreeable autumn month in Istro, Greece, with an average temperature varying between 19.4°C (66.9°F) and 22.5°C (72.5°F). Istro's weather in October involves a mild decrease in the average high-temperature, moving down slightly from September's moderately hot 25.9°C (78.6°F) to an agreeable 22.5°C (72.5°F). Weather in October »Weather in November
November, the last month of the autumn in Istro, is another refreshing month, with an average temperature ranging between max 19.3°C (66.7°F) and min 16.6°C (61.9°F). In the transition to November, Istro observes a minor drop in the average high-temperature, shifting from a pleasant 22.5°C (72.5°F) in October to an enjoyable 19.3°C (66.7°F). Weather in November »Weather in December
The first month of the winter, December, is still a mild month in Istro, Greece, with an average temperature fluctuating between 15.9°C (60.6°F) and 13.3°C (55.9°F). Istro's transition into December involves a gentle shift in temperature, receding from a comfortable 19.3°C (66.7°F) in November to a still refreshing 15.9°C (60.6°F). Weather in December »Updated: Jun 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest temperatures occur during January, when averages reach a peak of 14.2°C (57.6°F) and a low of 11.5°C (52.7°F).
January, February and December, with an average relative humidity of 72%, are most humid months.
The month with the most rainfall is January, when the rain falls for 10.3 days and typically aggregates up to 25mm (0.98") of precipitation.
Throughout the year, there are 64.8 rainfall days, and 119mm (4.69") of precipitation is accumulated.
With an average of 6.4h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January through March and December, with an average maximum UV index of 4.
February and March, with an average sea temperature of 15°C (59°F), are months with the coldest seawater.
With an average of 14h and 30min of daylight, June has the longest days of the year.
July is the least humid month, with an average relative humidity of 65%.
July and August, with an average maximum UV index of 7, are months with the highest UV index.
Temperature records mark August as the warmest month, with highs averaging 28.1°C (82.6°F) and lows at 23.7°C (74.7°F).
The only month without rainfall is August.
August is the month with the warmest seawater, with an average sea temperature of 25°C (77°F).
The month with the most sunshine is August, with an average of 12.1h of sunshine.
January through July, September through December are months with rainfall in Istro.
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.
The month with the shortest days is December, with an average of 9h and 48min of daylight.
Average temperature
Istro, Greece
The warmest month (with the highest average high temperature) is August (28.1°C).
The month with the lowest average high temperature is January (14.2°C).
The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is January (11.5°C).
Average pressure
Istro, Greece
- Average pressure in January:
1016.8mbar - Average pressure in February:
1015.6mbar - Average pressure in March:
1015.1mbar - Average pressure in April:
1014mbar - Average pressure in May:
1013mbar - Average pressure in June:
1011.2mbar
- Average pressure in July:
1009mbar - Average pressure in August:
1009.6mbar - Average pressure in September:
1013mbar - Average pressure in October:
1015.7mbar - Average pressure in November:
1017.3mbar - Average pressure in December:
1017.9mbar
The month with the highest atmospheric pressure is December (1017.9mbar).
The month with the lowest atmospheric pressure is July (1009mbar).
Average wind speed
Istro, Greece
- Average wind speed in January:
20.6km/h - Average wind speed in February:
19.7km/h - Average wind speed in March:
17.3km/h - Average wind speed in April:
15.1km/h - Average wind speed in May:
12.6km/h - Average wind speed in June:
13.6km/h
- Average wind speed in July:
17.4km/h - Average wind speed in August:
17.2km/h - Average wind speed in September:
15.2km/h - Average wind speed in October:
14.7km/h - Average wind speed in November:
15.5km/h - Average wind speed in December:
18.8km/h
The windiest month (with the highest average wind speed) is January (20.6km/h).
The calmest month (with the lowest average wind speed) is May (12.6km/h).
Average humidity
Istro, Greece
The months with the highest relative humidity are January, February and December (72%).
The month with the lowest relative humidity is July (65%).
Average rainfall
Istro, Greece
The wettest month (with the highest rainfall) is January (25mm).
The driest month (with the least rainfall) is August (0mm).
Average rainfall days
Istro, Greece
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
8 days - Average rainfall days in March:
7.9 days - Average rainfall days in April:
6.7 days - Average rainfall days in May:
4.5 days - Average rainfall days in June:
1.8 days
- Average rainfall days in July:
0.7 days - Average rainfall days in August:
0.4 days - Average rainfall days in September:
2.1 days - Average rainfall days in October:
5.8 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is December (10.4 days).
The month with the least rainy days is August (0.4 days).
Average sea temperature
Istro, Greece
The best month for swimming (with the highest average sea temperature) is August (25°C).
The coldest months (with the lowest average sea temperature) are February and March (15°C).
Average daylight / Average sunshine
Istro, Greece
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 24min - Average sunshine in February:
7h and 24min - Average sunshine in March:
8h and 54min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 36min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 6min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 24min - Average sunshine in November:
7h and 6min - Average sunshine in December:
6h and 30min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days
Istro, Greece
- Average sunshine days in January:
15.9 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
20.2 days - Average sunshine days in April:
22.2 days - Average sunshine days in May:
24.5 days - Average sunshine days in June:
27.5 days
- Average sunshine days in July:
30.3 days - Average sunshine days in August:
30.3 days - Average sunshine days in September:
26.9 days - Average sunshine days in October:
21.1 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
16.5 days
The months with the most sunshine days are July and August (30.3 days).
The month with the least sunshine days is January (15.9 days).
Average UV index
Istro, Greece
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 4).
Average cloud cover
Istro, Greece
The month with the most cloud cover is January (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 2).
Average visibility
Istro, Greece
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).
