December weather forecastGresik, Indonesia
December
Weather in December
December, the first month of the summer in Gresik, is still a tropical month, with an average temperature ranging between max 31.4°C (88.5°F) and min 25.5°C (77.9°F).Temperature
With the onset of December, a modest change to a still hot 31.4°C (88.5°F) from November's 33°C (91.4°F) is noted in high-temperature. During December, Gresik's temperature falls to a steady low-temperature average of 25.5°C (77.9°F).Heat index
The heat index for December is computed to be a scorching 41°C (105.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In December, the average relative humidity in Gresik is 76%.Rainfall
In December, in Gresik, the rain falls for 20.3 days. Throughout December, 50mm (1.97") of precipitation is accumulated. In Gresik, during the entire year, the rain falls for 159.4 days and collects up to 403mm (15.87") of precipitation.Sea temperature
With an average sea temperature of 30.2°C (86.4°F), December is the month with the warmest seawater in Gresik.Note: Engaging in intense water activities can feel less refreshing when the temperature is above 30°C (86°F).
Daylight
With an average of 12h and 30min of daylight, December has the longest days of the year in Gresik.On the first day of December in Gresik, Indonesia, sunrise is at 05:03 and sunset at 17:33. On the last day of the month, sunrise is at 05:16 and sunset at 17:48 WIB.
Sunshine
In December, the average sunshine is 8.1h.UV index
The months with the highest UV index in Gresik are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Gresik. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 7 in December leads to these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gresik, Indonesia
- Average high temperature in December: 31.4°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is January (30°C).
- Average low temperature in December: 25.5°C
The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24°C).
Average pressure in December
Gresik, Indonesia
- Average pressure in December: 1008.6mbar
The months with the highest atmospheric pressure are August and September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in December
Gresik, Indonesia
- Average wind speed in December: 7.6km/h
The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest month (with the lowest average wind speed) is April (6.2km/h).
Average humidity in December
Gresik, Indonesia
- Average humidity in December: 76%
The months with the highest relative humidity are January and February (81%).
The months with the lowest relative humidity are September and October (63%).
Average rainfall in December
Gresik, Indonesia
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is February (81mm).
The driest months (with the least rainfall) are August and September (3mm).
Average rainfall days in December
Gresik, Indonesia
- Average rainfall days in December: 20.3 days
The month with the highest number of rainy days is February (22.9 days).
The month with the least rainy days is September (2.9 days).
Average sea temperature in December
Gresik, Indonesia
- Average sea temperature in December: 30.2°C
The best month for swimming (with the highest average sea temperature) is December (30.2°C).
The coldest month (with the lowest average sea temperature) is August (27.8°C).
Average daylight in December /
Average sunshine in December
Gresik, Indonesia
- Average daylight in December: 12h and 30min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).
- Average sunshine in December: 8h and 6min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 7h and 36min).
Average sunshine days in December
Gresik, Indonesia
- Average sunshine days in December: 9.1 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (4.1 days).
Average UV index in December
Gresik, Indonesia
- Average UV index in December: 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 December
Gresik, Indonesia
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are August and September (Cloud cover 14).
Average visibility in December
Gresik, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
