The best times to visit Great Barrier Island for ideal weather are
October 22nd to May 6th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Great Barrier Island Travel Guide
Other Great Barrier Island Travel Info
Weather in Great Barrier Island
Average temperatures in Great Barrier Island vary little. Considering humidity, temperatures feel very enjoyable all year with a very low chance of rain or snow throughout the year. The area is more temperate than most — in the 89th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Great Barrier Island, the hottest months are February, January, and then March. See average monthly temperatures below. The warmest time of year is generally mid February where highs are regularly around 73.3°F (22.9°C) with temperatures rarely dropping below 65.4°F (18.6°C) at night.
Great Barrier Island Temperatures (Fahrenheit)
Great Barrier Island Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Great Barrier Island Perceived Temperature (F)
Great Barrier Island Perceived Temperature (C)
Average Great Barrier Island Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Great Barrier Island are January, February, and then April. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late January and early February. For example, on the week of January 29th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early September with an average of 1 days of significant precipitation the week of September 3rd.
When can you find snow in Great Barrier Island? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Great Barrier Island.
Snow on the Ground
The graph below shows the average snow on the ground in Great Barrier Island (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Great Barrier Island has some very humid months, and above average humidity throughout the year. The least humid month is April (69.9% relative humidity), and the most humid month is December (75.9%).
Wind in Great Barrier Island is usually stronger than many places. The windiest month is July, followed by September and August. July’s average wind speed of around 16.1 knots (18.5 MPH or 29.8 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early July where average top sustained speeds reach 25.7 knots, which is considered a strong breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Great Barrier Island.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||12.6||Significant breeze||18.1||Strong breeze|
|Feb||12.6||Significant breeze||18.2||Strong breeze|
|Mar||13||Significant breeze||18.6||Strong breeze|
|Apr||13.4||Significant breeze||19.1||Strong breeze|
|May||13.2||Significant breeze||19.5||Strong breeze|
|Jun||14||Significant breeze||21.4||Strong breeze|
|Jul||16.1||Significant breeze||22.4||Strong breeze|
|Aug||14.5||Significant breeze||20.4||Strong breeze|
|Sep||15.4||Significant breeze||21.7||Strong breeze|
|Oct||14.1||Significant breeze||20.8||Strong breeze|
|Nov||13.7||Significant breeze||19.7||Strong breeze|
|Dec||13.3||Significant breeze||19.1||Strong breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Great Barrier Island?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for New Zealand; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 30, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Great Barrier Island, New Zealand is January, followed by June and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Great Barrier Island in April. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Great Barrier Island Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 72.8°F (22.7°C) and 60.9°F (16.1°C) with colder temperatures in the later months. Rain is rare with 2 to 4 days of significant precipitation per month. Fall is the slowest for tourism, which makes it a good time for those looking for deals.
Winter (June through August)
The middle-year months have comfortably cool weather with high temperatures that are brisk. These months see the most precipitation with about 4 days of precipitation per month. June – August is the second busiest season for tourism in Great Barrier Island, so lodging and other accommodations may cost slightly more.
Spring (September through November)
Spring daily highs range from 68.4°F (20.2°C) and 59.7°F (15.4°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 2 to 5 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Summer (December through February)
Weather is perfect this time of year in Great Barrier Island to be enjoyable for warm weather travelers. The average high during this season is between 73.3°F (22.9°C) and 68.6°F (20.3°C). On average, it rains or snows a smalll amount: 1 to 3 times per month. These times of year are the busiest with tourists.