January weather forecastIsabel, Philippines

January

Weather in January

January, like December, in Isabel, Philippines, is another warm winter month, with an average temperature varying between 28.2°C (82.8°F) and 24.5°C (76.1°F).

Temperature

January is the coldest month of the year, registering average temperatures as high as 28.2°C (82.8°F) and as low as 24.5°C (76.1°F).

Heat index

For January, the heat index is appraised at a tropical 33°C (91.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The most humid month is January, with an average relative humidity of 82%.

Rainfall

In Isabel, during January, the rain falls for 20.4 days and regularly aggregates up to 52mm (2.05") of precipitation. Throughout the year, there are 250 rainfall days, and 824mm (32.44") of precipitation is accumulated.

Sea temperature

In January, the average sea temperature is 26.9°C (80.4°F).
Note: Water activities including swimming and diving are pleasurable in temperatures between 25°C (77°F) and 29°C (84.2°F), ensuring comfort and enjoyment for extended time frames.

Daylight

In January, the average length of the day is 11h and 34min.
On the first day of January, sunrise is at 6:00 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 5:45 pm PST.

Sunshine

The month with the least sunshine is January, with an average of 5.2h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in January transforms into the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take note! Sand and water reflections strengthen the Sun's UV exposure.

Updated: Aug 23, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Isabel notes the coldest temperatures in January, with a average high of 28.2°C (82.8°F) and a low of 24.5°C (76.1°F).

In January, in Isabel, the average high-temperature is 28.2°C (82.8°F), and the average low-temperature is 24.5°C (76.1°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in January is appraised at 33°C (91.4°F).

January is the most humid month, with an average relative humidity of 82%.

The average relative humidity in January is 82%.

In Isabel, during January, the rain falls for 20.4 days and regularly aggregates up to 52mm (2.05") of precipitation.

In Isabel, in January, the average water temperature is 26.9°C (80.4°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

The average day length in January is 11h and 34min.

In January, on the first day of the month, sunrise is at 6:00 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 5:45 pm PST.

January has the least sunshine of the year, with an average of 5.2h of sunshine.

In January, the average sunshine duration is 5.2h.

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

The months with the lowest UV index are January through December, with an average maximum UV index of 7.

In Isabel, the average daily maximum UV index in January is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Dec

January

Feb

Average high temperature

29.2°C

28.2°C

28.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.2km/h

13.4km/h

12km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

18.4

20.4

14.8

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

8.5

7.6

8.7

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Isabel, Philippines

Average high temperature in January: 28.2°C

The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (28.2°C).

Average low temperature in January: 24.5°C

The months with the highest average low temperature are May and June (26.2°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).

Average pressure in January
Isabel, Philippines

Average pressure in January: 1011mbar

The month with the highest atmospheric pressure is February (1011.8mbar).
The month with the lowest atmospheric pressure is August (1008.3mbar).

Average wind speed in January
Isabel, Philippines

Average wind speed in January: 12.8km/h

The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).

Average humidity in January
Isabel, Philippines

Average humidity in January: 82%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are May and June (77%).

Average rainfall in January
Isabel, Philippines

Average rainfall in January: 52mm

The wettest month (with the highest rainfall) is July (104mm).
The driest month (with the least rainfall) is April (31mm).

Average rainfall days in January
Isabel, Philippines

Average rainfall days in January: 20.4 days

The month with the highest number of rainy days is October (25.1 days).
The month with the least rainy days is February (14.8 days).

Average sea temperature in January
Isabel, Philippines

Average sea temperature in January: 26.9°C

The best month for swimming (with the highest average sea temperature) is June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

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

Average daylight in January: 11h and 36min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).

Average sunshine in January: 5h and 12min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in January
Isabel, Philippines

Average sunshine days in January: 7.6 days

The month with the most sunshine days is March (10.4 days).
The month with the least sunshine days is August (4.4 days).

Average UV index in January
Isabel, Philippines

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
Isabel, Philippines

Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 30).

Average visibility in January
Isabel, 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).