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
As January takes hold, the average high-temperature is a pleasant 20.6°C (69.1°F), nearly mirroring that of the previous month. An average nighttime temperature of 15.1°C (59.2°F) is recorded in Portland, Australia, during January.Humidity
January is the least humid month, with an average relative humidity of 72%.Rainfall
In January, in Portland, the rain falls for 9.3 days. Throughout January, 25mm (0.98") of precipitation is accumulated. In Portland, during the entire year, the rain falls for 182 days and collects up to 532mm (20.94") of precipitation.Sea temperature
The months with the warmest seawater are January and February, with an average sea temperature of 17.3°C (63.1°F).Note: Swimming in 17.3°C (63.1°F) is not an enjoyable experience for most. Breathing becomes progressively more challenging as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
In January, the average length of the day is 14h and 29min.On the first day of January in Portland, sunrise is at 6:13 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:49 pm AEDT.
Sunshine
With an average of 8.8h of sunshine, January has the most sunshine of the year.UV index
The months with the highest UV index in Portland are January through March and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the average January temperature in Portland?
What is the least humid month in Portland?
What is the average humidity in January in Portland?
How many days does it rain in January in Portland?
When is the sea warmest in Portland?
What is the sea water temperature in January in Portland?
How many hours of daylight does Portland have in January?
When is the sunrise / sunset in January in Portland?
What month has the most sunshine in Portland?
How many hours of sunshine does Portland have in January?
What is the month with the highest UV index in Portland?
What is the UV index intensity in January in Portland?
Average temperature in January
Portland, Australia
- Average high temperature in January: 20.6°C
The warmest month (with the highest average high temperature) is February (20.8°C).
The month with the lowest average high temperature is July (13.1°C).
- Average low temperature in January: 15.1°C
The month with the highest average low temperature is February (15.8°C).
The coldest month (with the lowest average low temperature) is August (9.6°C).
Average pressure in January
Portland, Australia
- Average pressure in January: 1013.1mbar
The month with the highest atmospheric pressure is June (1020.7mbar).
The month with the lowest atmospheric pressure is January (1013.1mbar).
Average wind speed in January
Portland, Australia
- Average wind speed in January: 17.9km/h
The windiest month (with the highest average wind speed) is August (23.6km/h).
The calmest month (with the lowest average wind speed) is April (17.6km/h).
Average humidity in January
Portland, Australia
- Average humidity in January: 72%
The months with the highest relative humidity are June and July (77%).
The month with the lowest relative humidity is January (72%).
Average rainfall in January
Portland, Australia
- Average rainfall in January: 25mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in January
Portland, Australia
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is August (21.2 days).
The month with the least rainy days is February (8.8 days).
Average sea temperature in January
Portland, Australia
- Average sea temperature in January: 17.3°C
The best months for swimming (with the highest average sea temperature) are January and February (17.3°C).
The coldest month (with the lowest average sea temperature) is September (14.2°C).
Average daylight in January /
Average sunshine in January
Portland, Australia
- Average daylight in January: 14h and 3min
The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 30min).
- Average sunshine in January: 8h and 5min
The month with the most sunshine is January (Average sunshine: 8h and 48min).
The month with the least sunshine is May (Average sunshine: 5h and 54min).
Average sunshine days in January
Portland, Australia
- Average sunshine days in January: 18.1 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (6.9 days).
Average UV index in January
Portland, Australia
- Average UV index in January: 5
The months with the highest UV index are January, February, March and December (UV index 5).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in January
Portland, Australia
- Average cloud cover in January: 34
The months with the most cloud cover are May and August (Cloud cover 54).
The month with the least cloud cover is January (Cloud cover 34).
Average visibility in January
Portland, 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).
Portland, Australia
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