September weather forecast
Barcelona, Venezuela

September experiences another notable drop in rainfall to 99mm, making the weather a bit drier and less humid compared to the preceding month. The city continues to embrace the summer season, with hot, sunny days perfect for soaking in some vitamin D. Barcelona's energy doesn't wane even though the summer crowds start to thin out. Sea temperatures remain quite warm, continuing to allure individuals to partake in water sports and activities. Lighter winds and a drop in humidity make exploring the city and its surrounding an enjoyable experience despite the heat.

Temperature

The transition into September notes an average high-temperature of a still hot 30.5°C, revealing a mild distinction from the 30.2°C in August. Barcelona encounters a steady low-temperature average of 23.7°C throughout the month of September.

Heat index

In September, the average heat index is estimated at a fiery hot 39°C. Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In September, the rain falls for 26.3 days. Throughout September, 99mm of precipitation is accumulated. Throughout the year, in Barcelona, there are 229.1 rainfall days, and 758mm of precipitation is accumulated.

Sea temperature

The months with the warmest seawater in Barcelona are September and October, with an average sea temperature of 28.5°C.
Note: For any water activity, temperatures between 25°C and 29°C are deemed excellent and extremely satisfying for enduring periods.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 06:09 and sunset at 18:28. On the last day of the month, sunrise is at 06:07 and sunset at 18:10 -04.

Sunshine

In September, the average sunshine is 9.4h.

UV index

The months with the highest UV index in Barcelona are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.