September weather forecast
Puerto Peñasco, Mexico

September marks the gradual transition from the hot summer months to a slightly more temperate climate in Puerto Peñasco. A small decrease in maximum recorded temperatures indicates that days become slightly less warm. Alongside, daylight hours start reducing, giving way to relatively longer nights. Intermittent rainfall acts as a gentle reminder of the upcoming shift in weather. The signs of impending autumn are subtly apparent, as September carries the final traces of Mexican summer.

Temperature

A minimal variation is noted in Puerto Peñasco's average high-temperature at the onset of September, reaching a still hot 33.4°C (92.1°F) from August's 34.2°C (93.6°F). Throughout September, Puerto Peñasco reports a steady low-temperature average of 29.3°C (84.7°F), slightly lower than its daytime counterpart.

Heat index

September's mean heat index is evaluated at a fiery hot 37°C (98.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in September in Puerto Peñasco, Mexico, is 51%.

Rainfall

In September, the rain falls for 3.1 days. Throughout September, 5mm (0.2") of precipitation is accumulated. In Puerto Peñasco, during the entire year, the rain falls for 23 days and collects up to 61mm (2.4") of precipitation.

Daylight

The average length of the day in September in Puerto Peñasco, Mexico, is 12h and 20min.
On the first day of September, sunrise is at 6:10 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 6:19 pm MST.

Sunshine

In Puerto Peñasco, the average sunshine in September is 9.8h.

UV index

The months with the highest UV index in Puerto Peñasco are June through September, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 8 suggests these recommendations:
Ensure you're protected; unprotected eyes and skin can get hurt in moments. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.