January weather forecast
Petacalco, Mexico

January

Weather in January

January, the same as December, in Petacalco, Mexico, is another hot winter month, with an average temperature fluctuating between 30.1°C (86.2°F) and 21.9°C (71.4°F).

Temperature

The shift to January signals an average high-temperature of a still hot 30.1°C (86.2°F), subtly varied from December's 30.4°C (86.7°F). In Petacalco, January's nights observe an average temperature dip to a pleasant 21.9°C (71.4°F).

Heat index

For most parts of January, the heat index is estimated at a hot 34°C (93.2°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

The months with the lowest humidity are January and March, with an average relative humidity of 64%.

Rainfall

In Petacalco, Mexico, during January, the rain falls for 2 days and regularly aggregates up to 2mm (0.08") of precipitation. In Petacalco, during the entire year, the rain falls for 78.8 days and collects up to 363mm (14.29") of precipitation.

Daylight

The average length of the day in January is 11h and 12min.
On the first day of the month, sunrise is at 7:19 am and sunset at 6:24 pm. On the last day of January, in Petacalco, sunrise is at 7:21 am and sunset at 6:42 pm CST.

Sunshine

The average sunshine in January is 9.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 7 in January, converts into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

Is it hot during January?
In January, in Petacalco, the average high-temperature is 30.1°C (86.2°F), and the average low-temperature is 21.9°C (71.4°F). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in January is estimated at 34°C (93.2°F).
What are the least humid months?
January and March, with an average relative humidity of 64%, are the least humid months.
What is the average humidity in January?
In January, the average relative humidity is 64%.
How much does it rain in January?
In Petacalco, in January, it is raining for 2 days, with typically 2mm (0.08") of accumulated precipitation.
What is the average length of the day in January in Petacalco?
In January, the average day length is 11h and 12min.
When is the sunrise / sunset in January?
In January, on the first day of the month, sunrise is at 7:19 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 6:42 pm CST.
How long on average sun shines in January?
In Petacalco, the average sunshine duration in January is 9.8h.
When is the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What is the month with the lowest UV index?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
How high is the UV index in January?
In Petacalco, the average daily maximum UV index in January is 7. A UV Index value of 6 to 7 symbolizes a high health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Petacalco, Mexico
  • Average high temperature in January: 30.1°C

The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is February (29.8°C).

  • Average low temperature in January: 21.9°C

The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are February and March (21.6°C).

Average pressure in January
Petacalco, Mexico
  • Average pressure in January: 1013.7mbar

The month with the highest atmospheric pressure is January (1013.7mbar).
The month with the lowest atmospheric pressure is May (1010.8mbar).

Average wind speed in January
Petacalco, Mexico
  • Average wind speed in January: 8.4km/h

The windiest month (with the highest average wind speed) is January (8.4km/h).
The calmest month (with the lowest average wind speed) is November (7.4km/h).

Average humidity in January
Petacalco, Mexico
  • Average humidity in January: 64%

The month with the highest relative humidity is October (78%).
The months with the lowest relative humidity are January and March (64%).

Average rainfall in January
Petacalco, Mexico
  • Average rainfall in January: 2mm

The wettest month (with the highest rainfall) is August (89mm).
The driest month (with the least rainfall) is April (0mm).

Average rainfall days in January
Petacalco, Mexico
  • Average rainfall days in January: 2 days

The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is March (1.2 days).

Average daylight in January /
Average sunshine in January
Petacalco, Mexico
  • Average daylight in January: 11h and 1min

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 January: 9h and 5min

The month with the most sunshine is April (Average sunshine: 10h and 0min).
The month with the least sunshine is September (Average sunshine: 9h and 0min).

Average sunshine days in January
Petacalco, Mexico
  • Average sunshine days in January: 27.9 days

The month with the most sunshine days is March (30.1 days).
The month with the least sunshine days is September (12.1 days).

Average UV index in January
Petacalco, Mexico
  • Average UV index in January: 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 January
Petacalco, Mexico
  • Average cloud cover in January: 11

The month with the most cloud cover is September (Cloud cover 32).
The month with the least cloud cover is April (Cloud cover 6).

Average visibility in January
Petacalco, Mexico
  • Average visibility in January: 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).

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