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 sea temperature 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
Weather in January
Temperature
The months of January and March are noted for their lowest temperatures, with an average high-temperature of 28.3°C (82.9°F).Heat index
The average heat index in January is calculated to be a hot 34°C (93.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. 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 of high significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in January in Jayapura is 85%.Rainfall
In January, in Jayapura, Indonesia, the rain falls for 26.8 days. Throughout January, 217mm (8.54") of precipitation is accumulated. In Jayapura, Indonesia, during the entire year, the rain falls for 327.5 days and collects up to 2689mm (105.87") of precipitation.Sea temperature
In Jayapura, in January, the average water temperature is 29.5°C (85.1°F).Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.
Daylight
The average length of the day in January in Jayapura, Indonesia, is 12h and 15min.On the first day of the month, sunrise is at 05:32 and sunset at 17:48. On the last day of January, in Jayapura, sunrise is at 05:43 and sunset at 17:57 WIT.
Sunshine
In Jayapura, Indonesia, the average sunshine in January is 7.3h.UV index
The months with the lowest UV index are January, February, June through August and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during January translates into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Frequently asked questions
What month is the coldest in Jayapura?
How hot is it in Jayapura in January?
What is the average humidity in January in Jayapura?
How many days does it rain in January in Jayapura?
How warm is the water in January in Jayapura?
How many hours of daylight does Jayapura have in January?
What time are sunrise and sunset in January in Jayapura?
How many hours of sunshine does Jayapura have in January?
What are the months with the lowest UV index in Jayapura?
What is the UV index intensity in January in Jayapura?
Average temperature in January
Jayapura, Indonesia
- Average high temperature in January: 28.3°C
The warmest months (with the highest average high temperature) are October and November (29.2°C).
The months with the lowest average high temperature are January and March (28.3°C).
- Average low temperature in January: 23.6°C
The month with the highest average low temperature is December (23.8°C).
The coldest months (with the lowest average low temperature) are July and August (22.8°C).
Average pressure in January
Jayapura, Indonesia
- Average pressure in January: 1008.5mbar
The months with the highest atmospheric pressure are August and September (1009.9mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in January
Jayapura, Indonesia
- Average wind speed in January: 8.5km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is May (6.7km/h).
Average humidity in January
Jayapura, Indonesia
- Average humidity in January: 85%
The month with the highest relative humidity is March (86%).
The months with the lowest relative humidity are September, October and November (83%).
Average rainfall in January
Jayapura, Indonesia
- Average rainfall in January: 217mm
The wettest month (with the highest rainfall) is December (261mm).
The driest month (with the least rainfall) is February (171mm).
Average rainfall days in January
Jayapura, Indonesia
- Average rainfall days in January: 26.8 days
The months with the highest number of rainy days are May and October (28.5 days).
The month with the least rainy days is February (23.6 days).
Average sea temperature in January
Jayapura, Indonesia
- Average sea temperature in January: 29.5°C
The best month for swimming (with the highest average sea temperature) is October (29.8°C).
The coldest months (with the lowest average sea temperature) are March and August (29.1°C).
Average daylight in January /
Average sunshine in January
Jayapura, Indonesia
- Average daylight in January: 12h and 2min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in January: 7h and 2min
The month with the most sunshine is May (Average sunshine: 8h and 12min).
The month with the least sunshine is March (Average sunshine: 6h and 48min).
Average sunshine days in January
Jayapura, Indonesia
- Average sunshine days in January: 3.5 days
The month with the most sunshine days is February (3.6 days).
The month with the least sunshine days is May (1.4 days).
Average UV index in January
Jayapura, Indonesia
- Average UV index in January: 6
The months with the highest UV index are March, April, May, September, October and November (UV index 7).
The months with the lowest UV index are January, February, June, July, August and December (UV index 6).
Average cloud cover in January
Jayapura, Indonesia
- Average cloud cover in January: 51
The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are May, August and September (Cloud cover 44).
Average visibility in January
Jayapura, Indonesia
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Jayapura, Indonesia
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