Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September brings an average high-temperature of a still warm 28.5°C (83.3°F), subtly diverging from August's 29.3°C (84.7°F). During the month of September, the temperature in Puerto Vallarta generally drops to a low average of 21.8°C (71.2°F).Heat index
The heat index in September is appraised at a tropical 34°C (93.2°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
August and September, with an average relative humidity of 84%, are the most humid months.Rainfall
In Puerto Vallarta, during September, the rain falls for 24.4 days and regularly aggregates up to 144mm (5.67") of precipitation. Throughout the year, in Puerto Vallarta, there are 153.3 rainfall days, and 735mm (28.94") of precipitation is accumulated.Sea temperature
The months with the warmest seawater in Puerto Vallarta are August and September, with an average sea temperature of 30.3°C (86.5°F).Note: Swimming or participating in water activities at temperatures above 30°C (86°F) might not be as invigorating as one might hope.
Daylight
The average length of the day in September in Puerto Vallarta is 12h and 15min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:49 pm CST.
Sunshine
August and September, with an average of 8.4h of sunshine, are months with the least sunshine.UV index
The months with the highest UV index are January through November, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 in September translates into these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Warning! Sand and water reflections boost the intensity of UV exposure.
Frequently asked questions
How hot is it in Puerto Vallarta in September?
What is the most humid month in Puerto Vallarta?
What is the average humidity in September in Puerto Vallarta?
How many days does it rain in September in Puerto Vallarta?
What are the months with the warmest sea water in Puerto Vallarta?
How warm is the water in September in Puerto Vallarta?
How many hours of daylight does Puerto Vallarta have in September?
When are sunrise and sunset in September in Puerto Vallarta?
What is the month with the least sunshine in Puerto Vallarta?
How long on average sun shines in September in Puerto Vallarta?
What are the months with the highest UV index in Puerto Vallarta?
How high is the UV index in September in Puerto Vallarta?
Average temperature in September
Puerto Vallarta, Mexico
- Average high temperature in September: 28.5°C
The warmest month (with the highest average high temperature) is May (30.4°C).
The month with the lowest average high temperature is January (26.3°C).
- Average low temperature in September: 21.8°C
The month with the highest average low temperature is August (22.1°C).
The coldest month (with the lowest average low temperature) is February (16.4°C).
Average pressure in September
Puerto Vallarta, Mexico
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is January (1014.7mbar).
The month with the lowest atmospheric pressure is September (1010.9mbar).
Average wind speed in September
Puerto Vallarta, Mexico
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is March (7km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).
Average humidity in September
Puerto Vallarta, Mexico
- Average humidity in September: 84%
The months with the highest relative humidity are August and September (84%).
The months with the lowest relative humidity are March and April (60%).
Average rainfall in September
Puerto Vallarta, Mexico
- Average rainfall in September: 144mm
The wettest month (with the highest rainfall) is August (167mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in September
Puerto Vallarta, Mexico
- Average rainfall days in September: 24.4 days
The month with the highest number of rainy days is August (27.7 days).
The month with the least rainy days is April (2.1 days).
Average sea temperature in September
Puerto Vallarta, Mexico
- Average sea temperature in September: 30.3°C
The best months for swimming (with the highest average sea temperature) are August and September (30.3°C).
The coldest months (with the lowest average sea temperature) are February and March (23.9°C).
Average daylight in September /
Average sunshine in September
Puerto Vallarta, Mexico
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is May (Average sunshine: 9h and 48min).
The months with the least sunshine are August and September (Average sunshine: 8h and 24min).
Average sunshine days in September
Puerto Vallarta, Mexico
- Average sunshine days in September: 4 days
The month with the most sunshine days is April (28.1 days).
The month with the least sunshine days is August (2.7 days).
Average UV index in September
Puerto Vallarta, Mexico
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 6).
The month with the lowest UV index is December (UV index 5).
Average cloud cover in September
Puerto Vallarta, Mexico
- Average cloud cover in September: 42
The month with the most cloud cover is August (Cloud cover 43).
The months with the least cloud cover are March and May (Cloud cover 10).
Average visibility in September
Puerto Vallarta, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).
Puerto Vallarta, Mexico
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