September weather forecastSanta Isabel, Mexico

September

Weather in September

The first month of the autumn, September, is still a warm month in Santa Isabel, Mexico, with an average temperature ranging between min 18.9°C (66°F) and max 26.3°C (79.3°F).

Temperature

The average high-temperature for September is a still moderately hot 26.3°C (79.3°F), closely aligning with the temperature of the preceding month. September brings with it a nighttime average temperature of 18.9°C (66°F) in Santa Isabel.

Humidity

The average relative humidity in September is 61%.

Rainfall

In September, in Santa Isabel, the rain falls for 4 days. Throughout September, 9mm (0.35") of precipitation is accumulated. In Santa Isabel, during the entire year, the rain falls for 59.5 days and collects up to 211mm (8.31") of precipitation.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:06 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:27 pm PDT.

Sunshine

In September, the average sunshine in Santa Isabel, Mexico, is 10.3h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

The high-temperature, in September, in Santa Isabel, records 26.3°C (79.3°F), while the low-temperature is 18.9°C (66°F).

In Santa Isabel, Mexico, the average relative humidity in September is 61%.

In Santa Isabel, Mexico, in September, during 4 rainfall days, 9mm (0.35") of precipitation is typically accumulated.

In Santa Isabel, Mexico, the average day length in September is 12h and 22min.

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:06 pm. On the last day of the month, in Santa Isabel, Mexico, sunrise is at 6:36 am and sunset at 6:27 pm PDT.

In Santa Isabel, the average sunshine duration in September is 10.3h.

The months with the highest UV index are June through September, with an average maximum UV index of 6.

In September, the average daily maximum UV index in Santa Isabel is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Santa Isabel, Mexico

  • Average high temperature in September: 26.3°C

The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is December (17.1°C).

  • Average low temperature in September: 18.9°C

The month with the highest average low temperature is August (19.6°C).
The coldest month (with the lowest average low temperature) is February (10.1°C).

Average pressure in September
Santa Isabel, Mexico

  • Average pressure in September: 1011.6mbar

The month with the highest atmospheric pressure is January (1018.6mbar).
The month with the lowest atmospheric pressure is June (1011.5mbar).

Average wind speed in September
Santa Isabel, Mexico

  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is April (10.4km/h).
The calmest month (with the lowest average wind speed) is October (8.4km/h).

Average humidity in September
Santa Isabel, Mexico

  • Average humidity in September: 61%

The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is November (55%).

Average rainfall in September
Santa Isabel, Mexico

  • Average rainfall in September: 9mm

The wettest month (with the highest rainfall) is February (42mm).
The driest month (with the least rainfall) is June (3mm).

Average rainfall days in September
Santa Isabel, Mexico

  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.8 days).

Average daylight in September /
Average sunshine in September
Santa Isabel, Mexico

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 18min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in September
Santa Isabel, Mexico

  • Average sunshine days in September: 24.6 days

The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is February (20.3 days).

Average UV index in September
Santa Isabel, Mexico

  • Average UV index in September: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in September
Santa Isabel, Mexico

  • Average cloud cover in September: 8

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in September
Santa Isabel, 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).