January weather forecastDumanjug, Philippines
January
Weather in January
January, the same as December, is another warm winter month in Dumanjug, Philippines, with an average temperature fluctuating between 27.8°C (82°F) and 24.3°C (75.7°F).Temperature
Dumanjug records the coldest temperatures in January, averaging a high of 27.8°C (82°F) and a low of 24.3°C (75.7°F).Heat index
January's heat index is estimated at a tropical 32°C (89.6°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The most humid month is January, with an average relative humidity of 82%.Rainfall
In Dumanjug, in January, during 24.1 rainfall days, 85mm (3.35") of precipitation is typically accumulated. Throughout the year, there are 242 rainfall days, and 945mm (37.2") of precipitation is accumulated.Sea temperature
In Dumanjug, in January, the average water temperature is 26.9°C (80.4°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.
Daylight
In Dumanjug, the average length of the day in January is 11h and 37min.On the first day of January in Dumanjug, sunrise is at 6:02 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 5:50 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 5.1h of sunshine.UV index
January is the month with the lowest UV index in Dumanjug, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a daily UV index of 6 turns into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dumanjug, Philippines
- Average high temperature in January: 27.8°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 (27.8°C).
- Average low temperature in January: 24.3°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).
Average pressure in January
Dumanjug, Philippines
- Average pressure in January: 1010.7mbar
The month with the highest atmospheric pressure is February (1011.4mbar).
The months with the lowest atmospheric pressure are July and August (1008.8mbar).
Average wind speed in January
Dumanjug, Philippines
- Average wind speed in January: 16.6km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest months (with the lowest average wind speed) are May and June (8.1km/h).
Average humidity in January
Dumanjug, Philippines
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is May (74%).
Average rainfall in January
Dumanjug, Philippines
- Average rainfall in January: 85mm
The wettest month (with the highest rainfall) is December (120mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in January
Dumanjug, Philippines
- Average rainfall days in January: 24.1 days
The month with the highest number of rainy days is January (24.1 days).
The month with the least rainy days is April (16.3 days).
Average sea temperature in January
Dumanjug, 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
Dumanjug, Philippines
- Average daylight in January: 11h and 36min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in January: 5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in January
Dumanjug, Philippines
- Average sunshine days in January: 4 days
The month with the most sunshine days is August (11.4 days).
The month with the least sunshine days is November (3.5 days).
Average UV index in January
Dumanjug, Philippines
- Average UV index in January: 6
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in January
Dumanjug, Philippines
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in January
Dumanjug, 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).





