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
January is the warmest month of the year, registering average temperatures as high as 27.3°C (81.1°F) and as low as 19.8°C (67.6°F).Heat index
The heat index value for January is calculated to be a hot 30°C (86°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In January, the average relative humidity in Greenwich, Australia, is 74%.Rainfall
In Greenwich, in January, during 16.7 rainfall days, 63mm (2.48") of precipitation is typically accumulated. Throughout the year, there are 169 rainfall days, and 647mm (25.47") of precipitation is accumulated.Sea temperature
In Greenwich, Australia, in January, the average water temperature is 23.3°C (73.9°F).Note: If cold is not your friend, swimming at 23.3°C (73.9°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.
Daylight
In January, the average length of the day is 14h and 7min.On the first day of January in Greenwich, sunrise is at 5:47 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:01 pm AEDT.
Sunshine
The average sunshine in January is 8.5h.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Greenwich. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during January translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Frequently asked questions
What month is the hottest in Greenwich?
What is the average January temperature in Greenwich?
What is the average humidity in January in Greenwich?
How many days does it rain in January in Greenwich?
What is the water temperature in January in Greenwich?
What is the average length of the day in January in Greenwich?
When are sunrise and sunset in January in Greenwich?
How many hours of sunshine does Greenwich have in January?
What is the month with the highest UV index in Greenwich?
What is the UV index intensity in January in Greenwich?
Average temperature in January
Greenwich, Australia
- Average high temperature in January: 27.3°C
The warmest month (with the highest average high temperature) is January (27.3°C).
The month with the lowest average high temperature is July (16.6°C).
- Average low temperature in January: 19.8°C
The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in January
Greenwich, Australia
- Average pressure in January: 1012.9mbar
The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in January
Greenwich, Australia
- Average wind speed in January: 14km/h
The windiest months (with the highest average wind speed) are January and August (14km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in January
Greenwich, Australia
- Average humidity in January: 74%
The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are August and September (66%).
Average rainfall in January
Greenwich, Australia
- Average rainfall in January: 63mm
The wettest month (with the highest rainfall) is February (92mm).
The driest month (with the least rainfall) is September (35mm).
Average rainfall days in January
Greenwich, Australia
- Average rainfall days in January: 16.7 days
The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (10.1 days).
Average sea temperature in January
Greenwich, Australia
- Average sea temperature in January: 23.3°C
The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).
Average daylight in January /
Average sunshine in January
Greenwich, Australia
- Average daylight in January: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in January: 8h and 3min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in January
Greenwich, Australia
- Average sunshine days in January: 11.2 days
The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in January
Greenwich, Australia
- Average UV index in January: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in January
Greenwich, Australia
- Average cloud cover in January: 40
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in January
Greenwich, Australia
- 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).
Greenwich, Australia
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