September weather forecastBlanes, Spain

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Blanes, Spain, with an average temperature ranging between max 23.9°C (75°F) and min 18.9°C (66°F).

Temperature

With the onset of September, the average high-temperature registers at a still moderately hot 23.9°C (75°F), subtly different from August's 26.7°C (80.1°F). In September, Blanes's nights cool slightly to a consistent average temperature of 18.9°C (66°F).

Humidity

In Blanes, Spain, the average relative humidity in September is 72%.

Rainfall

In September, in Blanes, the rain falls for 10.8 days. Throughout September, 37mm (1.46") of precipitation is accumulated. Throughout the year, there are 113.7 rainfall days, and 380mm (14.96") of precipitation is accumulated.

Snowfall

In Blanes, snow does not fall in February through December.

Sea temperature

In Blanes, Spain, in September, the average water temperature is 23.1°C (73.6°F).
Note: For those not fond of cold temperatures, taking a swim at 23.1°C (73.6°F) may require consideration of the sunshine, wind, and ambient temperature. While wetsuits are not mandatory, they can enhance the experience.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September, sunrise is at 07:15 and sunset at 20:22. On the last day of the month, sunrise is at 07:45 and sunset at 19:32 CEST.

Sunshine

In September, the average sunshine is 9h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Blanes, Spain. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Stay cautious! Sand and water reflections increase UV radiation potency.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Blanes in September has an average high-temperature of 23.9°C (75°F) and an average low-temperature of 18.9°C (66°F).

The average relative humidity in September in Blanes, Spain, is 72%.

In Blanes, in September, it is raining for 10.8 days, with typically 37mm (1.46") of accumulated precipitation.

In Blanes, snow does not fall in February through December.

In Blanes, in September, the average water temperature is 23.1°C (73.6°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.1°C (73.6°F) water.

In Blanes, Spain, the average day length in September is 12h and 28min.

On the first day of September in Blanes, sunrise is at 07:15 and sunset at 20:22. On the last day of the month, sunrise is at 07:45 and sunset at 19:32 CEST.

In September, the average sunshine duration is 9h.

June through September, with an average maximum UV index of 6, are months with the highest UV index.

In September, the average daily maximum UV index in Blanes is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

26.7°C

23.9°C

20.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.9km/h

11.6km/h

13.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

16.9

14.9

17.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Blanes, Spain

Average high temperature in September: 23.9°C

The warmest month (with the highest average high temperature) is August (26.7°C).
The month with the lowest average high temperature is January (12.3°C).

Average low temperature in September: 18.9°C

The month with the highest average low temperature is August (21.3°C).
The coldest month (with the lowest average low temperature) is February (7.4°C).

Average pressure in September
Blanes, Spain

Average pressure in September: 1017mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
The months with the lowest atmospheric pressure are April and November (1014.7mbar).

Average wind speed in September
Blanes, Spain

Average wind speed in September: 11km/h

The windiest month (with the highest average wind speed) is February (14.3km/h).
The calmest months (with the lowest average wind speed) are June and July (10.5km/h).

Average humidity in September
Blanes, Spain

Average humidity in September: 72%

The month with the highest relative humidity is April (74%).
The month with the lowest relative humidity is February (69%).

Average rainfall in September
Blanes, Spain

Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is October (51mm).
The driest month (with the least rainfall) is February (15mm).

Average rainfall days in September
Blanes, Spain

Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is April (13.3 days).
The month with the least rainy days is December (5.8 days).

Average snowfall in September
Blanes, Spain

Average snowfall in September: 0mm

The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Blanes, Spain

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in September
Blanes, Spain

Average sea temperature in September: 23.1°C

The best month for swimming (with the highest average sea temperature) is August (24.2°C).
The coldest month (with the lowest average sea temperature) is February (13.2°C).

Average daylight in September /
Average sunshine in September
Blanes, Spain

Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are January and November (Average sunshine: 6h and 42min).

Average sunshine days in September
Blanes, Spain

Average sunshine days in September: 14.9 days

The month with the most sunshine days is December (23.3 days).
The month with the least sunshine days is April (14.5 days).

Average UV index in September
Blanes, Spain

Average UV index in September: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in September
Blanes, Spain

Average cloud cover in September: 23

The month with the most cloud cover is April (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 16).

Average visibility in September
Blanes, Spain

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).