January weather forecast
San Andrés, Guatemala

January

Weather in January

January, like December, in San Andrés, Guatemala, is a moderately hot winter month, with an average temperature varying between 27.4°C (81.3°F) and 17.1°C (62.8°F).

Temperature

San Andrés's coldest month, January, registers temperatures that range from a high of 27.4°C (81.3°F) to a low of 17.1°C (62.8°F).

Heat index

The heat index for January is appraised at a hot 31°C (87.8°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

In January, the average relative humidity is 84%.

Rainfall

In San Andrés, in January, it is raining for 14.5 days, with typically 34mm (1.34") of accumulated precipitation. In San Andrés, during the entire year, the rain falls for 227.8 days and collects up to 871mm (34.29") of precipitation.

Daylight

In January, the average length of the day is 11h and 15min.
On the first day of January in San Andrés, sunrise is at 06:28 and sunset at 17:37. On the last day of the month, sunrise is at 06:31 and sunset at 17:54 CST.

Sunshine

January and November, with an average of 4.9h of sunshine, are months with the least sunshine in San Andrés.

UV index

With an average maximum UV index of 5, January is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during January morphs into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

What part of the year is the coldest?
With average temperatures fluctuating between a high of 27.4°C (81.3°F) and a low of 17.1°C (62.8°F), January stands out as the coldest month.
What is the average January temperature?
The average high-temperature, in January, in San Andrés, is 27.4°C (81.3°F), while the average low-temperature is 17.1°C (62.8°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in January is appraised at 31°C (87.8°F).
What is the average humidity in January in San Andrés?
The average relative humidity in January in San Andrés is 84%.
How many days does it rain in January?
In San Andrés, during January, the rain falls for 14.5 days and regularly aggregates up to 34mm (1.34") of precipitation.
How many hours of daylight does San Andrés have in January?
The average day length in January is 11h and 15min.
What time are sunrise and sunset in January in San Andrés?
On the first day of January, sunrise is at 06:28 and sunset at 17:37. On the last day of the month, sunrise is at 06:31 and sunset at 17:54 CST.
What is the month with the least sunshine?
The months with the least sunshine are January and November, with an average of 4.9h of sunshine.
How long on average sun shines in January?
In San Andrés, the average sunshine duration in January is 4.9h.
When is the lowest UV index?
With an average maximum UV index of 5, January is the month with the lowest UV index.
What is the UV index intensity in January?
In January, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
San Andrés, Guatemala
  • Average high temperature in January: 27.4°C

The warmest month (with the highest average high temperature) is April (35.5°C).
The month with the lowest average high temperature is January (27.4°C).

  • Average low temperature in January: 17.1°C

The month with the highest average low temperature is May (22.5°C).
The coldest month (with the lowest average low temperature) is January (17.1°C).

Average pressure in January
San Andrés, Guatemala
  • Average pressure in January: 1017.5mbar

The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is September (1011.8mbar).

Average wind speed in January
San Andrés, Guatemala
  • Average wind speed in January: 4.6km/h

The windiest month (with the highest average wind speed) is April (5.7km/h).
The calmest months (with the lowest average wind speed) are October, November and December (4.2km/h).

Average humidity in January
San Andrés, Guatemala
  • Average humidity in January: 84%

The months with the highest relative humidity are October, November and December (85%).
The month with the lowest relative humidity is April (67%).

Average rainfall in January
San Andrés, Guatemala
  • Average rainfall in January: 34mm

The wettest month (with the highest rainfall) is June (161mm).
The driest month (with the least rainfall) is February (19mm).

Average rainfall days in January
San Andrés, Guatemala
  • Average rainfall days in January: 14.5 days

The month with the highest number of rainy days is September (26.8 days).
The month with the least rainy days is February (11.4 days).

Average daylight in January /
Average sunshine in January
San Andrés, Guatemala
  • Average daylight in January: 11h and 2min

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 6min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is April (Average sunshine: 10h and 6min).
The months with the least sunshine are January and November (Average sunshine: 4h and 54min).

Average sunshine days in January
San Andrés, Guatemala
  • Average sunshine days in January: 13.9 days

The month with the most sunshine days is March (16.8 days).
The month with the least sunshine days is September (1.7 days).

Average UV index in January
San Andrés, Guatemala
  • Average UV index in January: 5

The months with the highest UV index are March, April, May, June and July (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in January
San Andrés, Guatemala
  • Average cloud cover in January: 62

The month with the most cloud cover is November (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 35).

Average visibility in January
San Andrés, Guatemala
  • Average visibility in January: 6km

The months with the highest visibility are March, April and May (8km).
The months with the lowest visibility are January, September, October, November and December (6km).

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