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
The lowest temperatures are recorded in January, with averages reaching a high of 28.9°C (84°F) and a low of 20°C (68°F).Heat index
During January, the heat index is appraised at a hot 34°C (93.2°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In San Jose City, the average relative humidity in January is 77%.Rainfall
In San Jose City, in January, during 10.1 rainfall days, 25mm (0.98") of precipitation is typically accumulated. Throughout the year, there are 242.3 rainfall days, and 1503mm (59.17") of precipitation is accumulated.Daylight
In January, the average length of the day is 11h and 19min.On the first day of the month, sunrise is at 6:22 am and sunset at 5:35 pm. On the last day of January, sunrise is at 6:26 am and sunset at 5:52 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 7.2h of sunshine.UV index
The months with the lowest UV index are January, July, August, October and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 6 in January leads to these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How hot is it in January?
What is the average humidity in January?
How many days does it rain in January?
What is the average length of the day in January in San Jose City?
When is the sunrise / sunset in January?
What are the months with the least sunshine?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
San Jose City, Philippines
- Average high temperature in January: 28.9°C
The warmest month (with the highest average high temperature) is May (33.6°C).
The month with the lowest average high temperature is January (28.9°C).
- Average low temperature in January: 20°C
The month with the highest average low temperature is May (23.7°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).
Average pressure in January
San Jose City, Philippines
- Average pressure in January: 1013.9mbar
The month with the highest atmospheric pressure is February (1014mbar).
The month with the lowest atmospheric pressure is August (1007.5mbar).
Average wind speed in January
San Jose City, Philippines
- Average wind speed in January: 7.5km/h
The windiest months (with the highest average wind speed) are January and February (7.5km/h).
The calmest month (with the lowest average wind speed) is September (5.1km/h).
Average humidity in January
San Jose City, Philippines
- Average humidity in January: 77%
The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
San Jose City, Philippines
- Average rainfall in January: 25mm
The wettest month (with the highest rainfall) is July (273mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in January
San Jose City, Philippines
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is July (30.2 days).
The month with the least rainy days is February (9.4 days).
Average daylight in January /
Average sunshine in January
San Jose City, Philippines
- 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 12min).
- Average sunshine in January: 7h and 1min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).
Average sunshine days in January
San Jose City, Philippines
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is July (0.8 days).
Average UV index in January
San Jose City, Philippines
- Average UV index in January: 6
The months with the highest UV index are February, March, April, May, June, September and November (UV index 7).
The months with the lowest UV index are January, July, August, October and December (UV index 6).
Average cloud cover in January
San Jose City, Philippines
- Average cloud cover in January: 26
The month with the most cloud cover is August (Cloud cover 55).
The months with the least cloud cover are January and March (Cloud cover 26).
Average visibility in January
San Jose City, Philippines
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, November and December (9km).
The months with the lowest visibility are August and September (7km).
