September weather forecastNossa Senhora do Monte, Cape Verde

September

Weather in September

September, the first month of the autumn in Nossa Senhora do Monte, is still a warm month, with an average temperature fluctuating between 28.1°C (82.6°F) and 25.8°C (78.4°F).

Temperature

As August transitions into September, Nossa Senhora do Monte records an average high-temperature of a still warm 28.1°C (82.6°F), showing a gentle shift from the preceding month. Nossa Senhora do Monte, during September nights, observes a steady temperature, averaging at a still moderately hot 25.8°C (78.4°F).

Heat index

The heat index value during September is calculated to be a tropical 32°C (89.6°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

The months with the highest humidity in Nossa Senhora do Monte, Cape Verde, are June through September, with an average relative humidity of 79%.

Rainfall

The month with the most rainfall in Nossa Senhora do Monte is September, when the rain falls for 13.1 days and typically aggregates up to 50mm (1.97") of precipitation.

Daylight

In September, the average length of the day in Nossa Senhora do Monte is 12h and 13min.
On the first day of September in Nossa Senhora do Monte, sunrise is at 06:26 and sunset at 18:50. On the last day of the month, sunrise is at 06:28 and sunset at 18:28 -01.

Sunshine

The average sunshine in September is 8h.

UV index

The months with the highest UV index in Nossa Senhora do Monte are August through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during September, leads to the following recommendations:
Elude overexposure. Fair-skinned people could get burnt 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

In September, in Nossa Senhora do Monte, the average high-temperature is 28.1°C (82.6°F), and the average low-temperature is 25.8°C (78.4°F). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in September is calculated to be 32°C (89.6°F).

June through September, with an average relative humidity of 79%, are most humid months in Nossa Senhora do Monte, Cape Verde.

In Nossa Senhora do Monte, Cape Verde, the average relative humidity in September is 79%.

The month with the most rainfall is September, when the rain falls for 13.1 days and typically aggregates up to 50mm (1.97") of precipitation.

In Nossa Senhora do Monte, in September, it is raining for 13.1 days, with typically 50mm (1.97") of accumulated precipitation.

In Nossa Senhora do Monte, Cape Verde, the average day length in September is 12h and 13min.

On the first day of September in Nossa Senhora do Monte, Cape Verde, sunrise is at 06:26 and sunset at 18:50. On the last day of the month, sunrise is at 06:28 and sunset at 18:28 -01.

In Nossa Senhora do Monte, the average sunshine duration in September is 8h.

August through November, with an average maximum UV index of 7, are months with the highest UV index.

The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Nossa Senhora do Monte, Cape Verde

  • Average high temperature in September: 28.1°C

The warmest month (with the highest average high temperature) is October (28.4°C).
The months with the lowest average high temperature are February and March (23.7°C).

  • Average low temperature in September: 25.8°C

The months with the highest average low temperature are September and October (25.8°C).
The coldest month (with the lowest average low temperature) is February (20.9°C).

Average pressure in September
Nossa Senhora do Monte, Cape Verde

  • Average pressure in September: 1012.5mbar

The month with the highest atmospheric pressure is January (1015.2mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).

Average wind speed in September
Nossa Senhora do Monte, Cape Verde

  • Average wind speed in September: 16.1km/h

The windiest month (with the highest average wind speed) is February (25.8km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).

Average humidity in September
Nossa Senhora do Monte, Cape Verde

  • Average humidity in September: 79%

The months with the highest relative humidity are June, July, August and September (79%).
The month with the lowest relative humidity is January (69%).

Average rainfall in September
Nossa Senhora do Monte, Cape Verde

  • Average rainfall in September: 50mm

The wettest month (with the highest rainfall) is September (50mm).
The driest months (with the least rainfall) are January, March and May (1mm).

Average rainfall days in September
Nossa Senhora do Monte, Cape Verde

  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is September (13.1 days).
The month with the least rainy days is January (0.7 days).

Average daylight in September /
Average sunshine in September
Nossa Senhora do Monte, Cape Verde

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 0min).

Average sunshine days in September
Nossa Senhora do Monte, Cape Verde

  • Average sunshine days in September: 13.1 days

The months with the most sunshine days are January and May (29.3 days).
The month with the least sunshine days is September (13.1 days).

Average UV index in September
Nossa Senhora do Monte, Cape Verde

  • Average UV index in September: 7

The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July and December (UV index 6).

Average cloud cover in September
Nossa Senhora do Monte, Cape Verde

  • Average cloud cover in September: 44

The month with the most cloud cover is August (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 13).

Average visibility in September
Nossa Senhora do Monte, Cape Verde

  • 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).