September weather forecast
Barcelona, Venezuela

September experiences another notable drop in rainfall to 99mm (3.9"), 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

Barcelona observes a minor difference in average high-temperatures between August's 30.2°C (86.4°F) and September's 30.5°C (86.9°F). Throughout September, a steady low-temperature average of 23.7°C (74.7°F) is noted.

Heat index

September's average heat index is appraised at a sweltering 39°C (102.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Barcelona, during September, the rain falls for 26.3 days and regularly aggregates up to 99mm (3.9") of precipitation. Throughout the year, there are 229.1 rainfall days, and 758mm (29.84") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater are September and October, with an average sea temperature of 28.5°C (83.3°F).
Note: A water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of September, sunrise is at 06:09 and sunset at 18:27. On the last day of the month, sunrise is at 06:07 and sunset at 18:09 -04.

Sunshine

In Barcelona, the average sunshine in September is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 rays for average individuals.
Note: In September, a regular UV index of 7 translates into these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be wary! Reflections from sand and water make UV radiation more intense.