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
Weather in January
Temperature
With the advent of January, Island Bay's high-temperatures adjust to a still comfortable 18.5°C (65.3°F), closely aligning with the preceding month. Consistently, Island Bay reports average nighttime temperatures of 15°C (59°F) during January, a marginal step down from its daytime highs.Humidity
In Island Bay, the average relative humidity in January is 79%.Rainfall
January and February are months with the least rain in Island Bay, New Zealand, when the rain falls for 9.6 days and typically aggregates up to 20mm (0.79") of rain.Daylight
In Island Bay, the average length of the day in January is 14h and 46min.On the first day of January in Island Bay, New Zealand, sunrise is at 5:50 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:43 pm NZDT.
Sunshine
In Island Bay, the average sunshine in January is 8.8h.UV index
January through March and December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during January leads to these instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the temperature in January in Island Bay?
What is the average humidity in January in Island Bay?
What is the driest month in Island Bay?
How many days does it rain in January in Island Bay?
What is the average length of the day in January in Island Bay?
When are sunrise and sunset in January in Island Bay?
How long on average sun shines in January in Island Bay?
What is the month with the highest UV index in Island Bay?
What is the UV index reading in January in Island Bay?
Average temperature in January
Island Bay, New Zealand
- Average high temperature in January: 18.5°C
The warmest month (with the highest average high temperature) is February (18.8°C).
The month with the lowest average high temperature is July (11.4°C).
- Average low temperature in January: 15°C
The month with the highest average low temperature is February (15.4°C).
The coldest month (with the lowest average low temperature) is July (9°C).
Average pressure in January
Island Bay, New Zealand
- Average pressure in January: 1012.4mbar
The month with the highest atmospheric pressure is March (1017.7mbar).
The months with the lowest atmospheric pressure are September and November (1012.2mbar).
Average wind speed in January
Island Bay, New Zealand
- Average wind speed in January: 25.7km/h
The windiest month (with the highest average wind speed) is September (26.9km/h).
The calmest month (with the lowest average wind speed) is March (23.1km/h).
Average humidity in January
Island Bay, New Zealand
- Average humidity in January: 79%
The months with the highest relative humidity are February, March, April and December (80%).
The month with the lowest relative humidity is July (78%).
Average rainfall in January
Island Bay, New Zealand
- Average rainfall in January: 20mm
The wettest month (with the highest rainfall) is June (47mm).
The driest months (with the least rainfall) are January and February (20mm).
Average rainfall days in January
Island Bay, New Zealand
- Average rainfall days in January: 9.6 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (8 days).
Average daylight in January /
Average sunshine in January
Island Bay, New Zealand
- Average daylight in January: 14h and 5min
The month with the longest days is December (Average daylight: 15h and 6min).
The month with the shortest days is June (Average daylight: 9h and 12min).
- Average sunshine in January: 8h and 5min
The month with the most sunshine is December (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 24min).
Average sunshine days in January
Island Bay, New Zealand
- Average sunshine days in January: 18 days
The month with the most sunshine days is March (19 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in January
Island Bay, New Zealand
- 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 May and June (UV index 3).
Average cloud cover in January
Island Bay, New Zealand
- Average cloud cover in January: 31
The month with the most cloud cover is June (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 30).
Average visibility in January
Island Bay, 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).
Island Bay, New Zealand
Weather forecast for your location
2. Allow the app to use your location
