Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
San Isidro records the coldest temperatures in January, averaging a high of 28.8°C (83.8°F) and a low of 20.6°C (69.1°F).Heat index
During January, the heat index is computed to be a hot 34°C (93.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In January, the average relative humidity is 80%.Rainfall
In San Isidro, Philippines, during January, the rain falls for 12.8 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, in San Isidro, there are 252.9 rainfall days, and 1795mm (70.67") of precipitation is accumulated.Daylight
In San Isidro, the average length of the day in January is 11h and 20min.On the first day of January, sunrise is at 6:22 am and sunset at 5:36 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 5:53 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 6.4h of sunshine.UV index
January, July, September through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in January converts into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
Is it hot during January?
What is the average humidity in January?
How many days does it rain in January in San Isidro?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
San Isidro, Philippines
- Average high temperature in January: 28.8°C
The warmest month (with the highest average high temperature) is April (33.5°C).
The month with the lowest average high temperature is January (28.8°C).
- Average low temperature in January: 20.6°C
The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is January (20.6°C).
Average pressure in January
San Isidro, Philippines
- Average pressure in January: 1013.3mbar
The month with the highest atmospheric pressure is February (1013.5mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).
Average wind speed in January
San Isidro, Philippines
- Average wind speed in January: 7.7km/h
The windiest months (with the highest average wind speed) are January and December (7.7km/h).
The calmest month (with the lowest average wind speed) is May (5.4km/h).
Average humidity in January
San Isidro, Philippines
- Average humidity in January: 80%
The months with the highest relative humidity are August and September (86%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
San Isidro, Philippines
- Average rainfall in January: 30mm
The wettest month (with the highest rainfall) is July (306mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in January
San Isidro, Philippines
- Average rainfall days in January: 12.8 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (9.7 days).
Average daylight in January /
Average sunshine in January
San Isidro, Philippines
- Average daylight in January: 11h and 2min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in January: 6h and 2min
The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in January
San Isidro, Philippines
- Average sunshine days in January: 16 days
The month with the most sunshine days is March (17.3 days).
The month with the least sunshine days is July (0.5 days).
Average UV index in January
San Isidro, Philippines
- Average UV index in January: 6
The months with the highest UV index are February, March, April, May, June and August (UV index 7).
The months with the lowest UV index are January, July, September, October, November and December (UV index 6).
Average cloud cover in January
San Isidro, Philippines
- Average cloud cover in January: 37
The month with the most cloud cover is August (Cloud cover 57).
The month with the least cloud cover is March (Cloud cover 31).
Average visibility in January
San Isidro, Philippines
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May and June (9km).
The months with the lowest visibility are July, August, September, October, November and December (8km).
