September weather forecastIxtapa, Mexico
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Ixtapa, Mexico, with an average temperature ranging between min 24.9°C (76.8°F) and max 28.9°C (84°F).Temperature
With September's advent, Ixtapa sees an average high-temperature of a still warm 28.9°C (84°F), subtly shifted from August's 29.9°C (85.8°F). The month of September is marked by an average minimum temperature of 24.9°C (76.8°F), slightly cooler than its daytime counterpart.Heat index
The heat index value for September is calculated to be a tropical 34°C (93.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. 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 essentially critical for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The months with the highest humidity are September and October, with an average relative humidity of 77%.Rainfall
September is the month with the most rainfall. Rain falls for 25.4 days and accumulates 157mm (6.18") of precipitation.Sea temperature
In Ixtapa, in September, the average water temperature is 30.1°C (86.2°F).Note: It is common to find waters above 30°C (86°F) less appealing for a refreshing dip.
Daylight
In Ixtapa, Mexico, the average length of the day in September is 12h and 14min.On the first day of September in Ixtapa, sunrise is at 6:32 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:35 pm CST.
Sunshine
July through September, with an average of 9h of sunshine, are months with the least sunshine in Ixtapa.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 reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 7 in September translates into this advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ixtapa, Mexico
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is May (30.1°C).
The months with the lowest average high temperature are February and December (28.6°C).
- Average low temperature in September: 24.9°C
The month with the highest average low temperature is August (25.4°C).
The coldest month (with the lowest average low temperature) is February (22.4°C).
Average pressure in September
Ixtapa, Mexico
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The months with the lowest atmospheric pressure are May, June and September (1010.6mbar).
Average wind speed in September
Ixtapa, Mexico
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is September (9.4km/h).
The calmest months (with the lowest average wind speed) are November and December (7.8km/h).
Average humidity in September
Ixtapa, Mexico
- Average humidity in September: 77%
The months with the highest relative humidity are September and October (77%).
The month with the lowest relative humidity is April (61%).
Average rainfall in September
Ixtapa, Mexico
- Average rainfall in September: 157mm
The wettest month (with the highest rainfall) is September (157mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in September
Ixtapa, Mexico
- Average rainfall days in September: 25.4 days
The month with the highest number of rainy days is July (25.7 days).
The month with the least rainy days is March (2.1 days).
Average sea temperature in September
Ixtapa, Mexico
- Average sea temperature in September: 30.1°C
The best months for swimming (with the highest average sea temperature) are July and August (30.2°C).
The coldest month (with the lowest average sea temperature) is March (26.3°C).
Average daylight in September /
Average sunshine in September
Ixtapa, Mexico
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are February, March, April, May and December (Average sunshine: 9h and 54min).
The months with the least sunshine are July, August and September (Average sunshine: 9h and 0min).
Average sunshine days in September
Ixtapa, Mexico
- Average sunshine days in September: 1.6 days
The month with the most sunshine days is March (28.8 days).
The month with the least sunshine days is September (1.6 days).
Average UV index in September
Ixtapa, Mexico
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Ixtapa, Mexico
- Average cloud cover in September: 34
The month with the most cloud cover is September (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 7).
Average visibility in September
Ixtapa, Mexico
- 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).





