September weather forecastHuatulco, Mexico

September

Weather in September

September, the first month of the autumn in Huatulco, is still a hot month, with temperature in the range of an average high of 34°C (93.2°F) and an average low of 22°C (71.6°F).

Temperature

The advent of September denotes an average high-temperature of a tropical 34°C (93.2°F), subtly different from August's 35°C (95°F). In the face of high daytime temperatures, Huatulco witnesses a consistent average nighttime low of 22°C (71.6°F) during September.

Rainfall

In September, the rain falls for 7 days. Throughout September, 174mm (6.85") of precipitation is accumulated. In Huatulco, during the entire year, the rain falls for 31 days and collects up to 704mm (27.72") of precipitation.

Sea temperature

In September, the average sea temperature is 29°C (84.2°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In Huatulco, the average length of the day in September is 12h and 13min.
On the first day of September, sunrise is at 6:12 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 6:14 pm CST.

Sunshine

September has the least sunshine of the year, with an average of 5h of sunshine.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily UV index of 12 turns into the following recommendations:
Adopt all essential precautions. Preventing sun harm is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Huatulco during September are 34°C (93.2°F) and 22°C (71.6°F) respectively.

In Huatulco, during September, the rain falls for 7 days and regularly aggregates up to 174mm (6.85") of precipitation.

In Huatulco, in September, the average water temperature is 29°C (84.2°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

In Huatulco, Mexico, the average day length in September is 12h and 13min.

In September, on the first day of the month, sunrise is at 6:12 am and sunset at 6:37 pm. On the last day of the month, in Huatulco, Mexico, sunrise is at 6:15 am and sunset at 6:14 pm CST.

With an average of 5h of sunshine, September has the least sunshine of the year in Huatulco, Mexico.

The average sunshine duration in September in Huatulco, Mexico, is 5h.

The months with the highest UV index are March through September, with an average maximum UV index of 12.

In Huatulco, the average daily maximum UV index in September is 12. A UV Index reading of 11, and higher, represents an extreme health threat from unprotected exposure to UV radiation.

Today

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Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

35°C

34°C

Average low temperature

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in September
Huatulco, Mexico

Average high temperature in September: 34°C

The warmest months (with the highest average high temperature) are April, May and August (35°C).
The months with the lowest average high temperature are January, February, November and December (33°C).

Average low temperature in September: 22°C

The months with the highest average low temperature are May and June (23°C).
The coldest months (with the lowest average low temperature) are January, February and December (19°C).

Average rainfall in September
Huatulco, Mexico

Average rainfall in September: 174mm

The wettest month (with the highest rainfall) is June (176mm).
The driest months (with the least rainfall) are February, March, April and December (1mm).

Average rainfall days in September
Huatulco, Mexico

Average rainfall days in September: 7 days

The months with the highest number of rainy days are June and September (7 days).
The months with the least rainy days are January, February, March, April, November and December (0 days).

Average sea temperature in September
Huatulco, Mexico

Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are June, July and August (30°C).
The coldest months (with the lowest average sea temperature) are January, February and December (27°C).

Average daylight in September /
Average sunshine in September
Huatulco, Mexico

Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

Average sunshine in September: 5h

The months with the most sunshine are February and March (Average sunshine: 9h).
The month with the least sunshine is September (Average sunshine: 5h).

Average UV index in September
Huatulco, Mexico

Average UV index in September: 12

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).