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 average high-temperature is a still pleasant 21.7°C (71.1°F) in January, hardly different from the 20.4°C (68.7°F) recorded in December. An average temperature of 16.8°C (62.2°F) is logged during the nights of January, a small step down from daytime highs.Humidity
January, March and November, with an average relative humidity of 77%, are the least humid months in Swanson, New Zealand.Rainfall
The months with the least rainfall are January through March Rain falls for 10.7 days and accumulates 34mm (1.34") of rain.Daylight
In January, the average length of the day is 14h and 22min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:44 pm. On the last day of January, sunrise is at 6:35 am and sunset at 8:34 pm NZDT.
Sunshine
January and December, with an average of 7.8h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are January through April and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in January transforms into this advice:
Act with care - The need to guard against sun damage is communicated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Swanson in January?
What is the least humid month in Swanson?
What is the average humidity in January in Swanson?
What is the driest month in Swanson?
How many days does it rain in January in Swanson?
How many hours of daylight does Swanson have in January?
When is the sunrise / sunset in January in Swanson?
What are the months with the most sunshine in Swanson?
How long on average sun shines in January in Swanson?
What is the month with the highest UV index in Swanson?
What is the UV index intensity in January in Swanson?
Average temperature in January
Swanson, New Zealand
- Average high temperature in January: 21.7°C
The warmest month (with the highest average high temperature) is February (22.5°C).
The month with the lowest average high temperature is July (13.7°C).
- Average low temperature in January: 16.8°C
The month with the highest average low temperature is February (17.4°C).
The coldest month (with the lowest average low temperature) is July (10.3°C).
Average pressure in January
Swanson, New Zealand
- Average pressure in January: 1014.9mbar
The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is September (1014.8mbar).
Average wind speed in January
Swanson, New Zealand
- Average wind speed in January: 16km/h
The windiest month (with the highest average wind speed) is September (19.6km/h).
The calmest month (with the lowest average wind speed) is February (14km/h).
Average humidity in January
Swanson, New Zealand
- Average humidity in January: 77%
The month with the highest relative humidity is August (80%).
The months with the lowest relative humidity are January, March and November (77%).
Average rainfall in January
Swanson, New Zealand
- Average rainfall in January: 34mm
The wettest month (with the highest rainfall) is August (73mm).
The driest months (with the least rainfall) are January, February and March (34mm).
Average rainfall days in January
Swanson, New Zealand
- Average rainfall days in January: 10.7 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is January (10.7 days).
Average daylight in January /
Average sunshine in January
Swanson, New Zealand
- Average daylight in January: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in January: 7h and 5min
The months with the most sunshine are January and December (Average sunshine: 7h and 48min).
The months with the least sunshine are August and September (Average sunshine: 6h and 12min).
Average sunshine days in January
Swanson, New Zealand
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is August (8.5 days).
Average UV index in January
Swanson, New Zealand
- Average UV index in January: 5
The months with the highest UV index are January, February, March, April and December (UV index 5).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in January
Swanson, New Zealand
- Average cloud cover in January: 39
The month with the most cloud cover is September (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 39).
Average visibility in January
Swanson, New Zealand
- 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).
