September weather forecastKopa, Estonia

September

Weather in September

September, the first month of the autumn in Kopa, is still a mild month, with an average temperature fluctuating between 13.4°C (56.1°F) and 15.2°C (59.4°F).

Temperature

Kopa observes a small decrease in the average high-temperature with the arrival of September, falling from August's refreshing 18.6°C (65.5°F) to a mild 15.2°C (59.4°F). Kopa consistently logs a low temperature averaging a still refreshing 13.4°C (56.1°F) during September, a modest drop from daytime temperatures.

Humidity

The average relative humidity in September in Kopa is 78%.

Rainfall

In September, the rain falls for 13.9 days. Throughout September, 45mm (1.77") of precipitation is accumulated. Throughout the year, in Kopa, there are 148.4 rainfall days, and 461mm (18.15") of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Kopa.

Daylight

In September, the average length of the day in Kopa is 12h and 50min.
On the first day of September, sunrise is at 06:29 and sunset at 20:31. On the last day of the month, sunrise is at 07:34 and sunset at 19:06 EEST.

Sunshine

The average sunshine in September is 7.7h.

UV index

The average daily maximum UV index in September in Kopa is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

The high-temperature in Kopa during September is 15.2°C (59.4°F) and the low-temperature is 13.4°C (56.1°F).

In Kopa, Estonia, the average relative humidity in September is 78%.

In September, in Kopa, the rain falls for 13.9 days. Throughout September, 45mm (1.77") of precipitation is accumulated.

June through September are months without snowfall in Kopa.

In Kopa, Estonia, in September, it doesn't snow. In October, it regularly snows.

In Kopa, Estonia, the average day length in September is 12h and 50min.

On the first day of September in Kopa, Estonia, sunrise is at 06:29 and sunset at 20:31. On the last day of the month, sunrise is at 07:34 and sunset at 19:06 EEST.

The average sunshine duration in September is 7.7h.

The average daily maximum UV index in September in Kopa, Estonia, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kopa, Estonia

  • Average high temperature in September: 15.2°C

The warmest month (with the highest average high temperature) is August (18.6°C).
The month with the lowest average high temperature is February (0.4°C).

  • Average low temperature in September: 13.4°C

The month with the highest average low temperature is August (16.4°C).
The coldest month (with the lowest average low temperature) is February (-1.8°C).

Average pressure in September
Kopa, Estonia

  • Average pressure in September: 1013.8mbar

The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).

Average wind speed in September
Kopa, Estonia

  • Average wind speed in September: 24.8km/h

The windiest month (with the highest average wind speed) is December (31.4km/h).
The calmest month (with the lowest average wind speed) is May (19.5km/h).

Average humidity in September
Kopa, Estonia

  • Average humidity in September: 78%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (76%).

Average rainfall in September
Kopa, Estonia

  • Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is April (18mm).

Average rainfall days in September
Kopa, Estonia

  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is November (18.1 days).
The month with the least rainy days is February (7.6 days).

Average snowfall in September
Kopa, Estonia

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (96mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Kopa, Estonia

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Kopa, Estonia

  • Average daylight in September: 12h and 48min

The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).

Average sunshine days in September
Kopa, Estonia

  • Average sunshine days in September: 13 days

The month with the most sunshine days is May (18.8 days).
The month with the least sunshine days is December (3.3 days).

Average UV index in September
Kopa, Estonia

  • Average UV index in September: 4

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in September
Kopa, Estonia

  • Average cloud cover in September: 44

The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Kopa, Estonia

  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January and December (8km).