January weather forecastSiay, Philippines

January

Weather in January

January, like December, in Siay, Philippines, is a moderately hot winter month, with an average temperature fluctuating between 23.4°C (74.1°F) and 28.1°C (82.6°F).

Temperature

Siay's coldest weather arrives in January, when temperatures average a high of 28.1°C (82.6°F) and a low of 23.4°C (74.1°F).

Heat index

The heat index for January is evaluated at a hot 33°C (91.4°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

January and November, with an average relative humidity of 85%, are the most humid months in Siay, Philippines.

Rainfall

In Siay, during January, the rain falls for 19.1 days and regularly aggregates up to 62mm (2.44") of precipitation. Throughout the year, there are 265.6 rainfall days, and 1186mm (46.69") of precipitation is accumulated.

Daylight

The average length of the day in January is 11h and 44min.
On the first day of January in Siay, sunrise is at 6:01 am and sunset at 5:42 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 5:55 pm PST.

Sunshine

January has the least sunshine of the year, with an average of 5.9h of sunshine.

UV index

January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 7 transforms into these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Updated: Aug 11, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Siay, January records the average lowest temperatures, peaking at 28.1°C (82.6°F) and reaching a low of 23.4°C (74.1°F).

In January, in Siay, the average high-temperature is 28.1°C (82.6°F), and the average low-temperature is 23.4°C (74.1°F). In January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 33°C (91.4°F).

January and November, with an average relative humidity of 85%, are most humid months.

In Siay, the average relative humidity in January is 85%.

In Siay, during January, the rain falls for 19.1 days and regularly aggregates up to 62mm (2.44") of precipitation.

In Siay, the average day length in January is 11h and 44min.

In January, on the first day of the month, sunrise is at 6:01 am and sunset at 5:42 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 5:55 pm PST.

January has the least sunshine of the year, with an average of 5.9h of sunshine.

In Siay, the average sunshine duration in January is 5.9h.

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 7.

The average daily maximum UV index in January is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

28.8°C

28.1°C

28.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11km/h

12.9km/h

13.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

10.3

11.1

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Siay, Philippines

Average high temperature in January: 28.1°C

The warmest month (with the highest average high temperature) is April (29.7°C).
The month with the lowest average high temperature is January (28.1°C).

Average low temperature in January: 23.4°C

The months with the highest average low temperature are May, October and November (24.2°C).
The coldest month (with the lowest average low temperature) is February (23°C).

Average pressure in January
Siay, Philippines

Average pressure in January: 1010mbar

The month with the highest atmospheric pressure is February (1010.6mbar).
The months with the lowest atmospheric pressure are November and December (1009mbar).

Average wind speed in January
Siay, Philippines

Average wind speed in January: 12.2km/h

The windiest month (with the highest average wind speed) is February (13km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).

Average humidity in January
Siay, Philippines

Average humidity in January: 85%

The months with the highest relative humidity are January and November (85%).
The month with the lowest relative humidity is March (81%).

Average rainfall in January
Siay, Philippines

Average rainfall in January: 62mm

The wettest month (with the highest rainfall) is June (142mm).
The driest month (with the least rainfall) is February (50mm).

Average rainfall days in January
Siay, Philippines

Average rainfall days in January: 19.1 days

The month with the highest number of rainy days is May (26.6 days).
The month with the least rainy days is February (15 days).

Average daylight in January /
Average sunshine in January
Siay, Philippines

Average daylight in January: 11h and 42min

The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).

Average sunshine in January: 5h and 54min

The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days in January
Siay, Philippines

Average sunshine days in January: 10.3 days

The month with the most sunshine days is February (11.1 days).
The month with the least sunshine days is May (3.7 days).

Average UV index in January
Siay, Philippines

Average UV index in January: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).

Average cloud cover in January
Siay, Philippines

Average cloud cover in January: 48

The months with the most cloud cover are June and July (Cloud cover 51).
The month with the least cloud cover is March (Cloud cover 35).

Average visibility in January
Siay, Philippines

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).