The best times to visit Tanna Island for ideal weather are
June 18th to October 7th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Tanna Island Travel Guide
Other Tanna Island Travel Info
Weather in Tanna Island
Average temperatures in Tanna Island vary very little. Considering humidity, temperatures feel hot for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 29th 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 Tanna Island, the hottest months are February, March, and then January. See average monthly temperatures below. The warmest time of year is generally mid February where highs are regularly around 88.1°F (31.2°C) with temperatures rarely dropping below 71.9°F (22.2°C) at night.
Tanna Island Temperatures (Fahrenheit)
Tanna 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.
Tanna Island Perceived Temperature (F)
Tanna Island Perceived Temperature (C)
Average Tanna 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 Tanna Island are September, August, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid to late September. For example, on the week of September 17th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late February and early March with an average of 3 days of significant precipitation the week of February 26th.
When can you find snow in Tanna 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 Tanna Island.
Snow on the Ground
The graph below shows the average snow on the ground in Tanna 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
Tanna Island has some very humid months, and high humidity throughout the year. The least humid month is October (71.5% relative humidity), and the most humid month is March (80.9%).
Wind in Tanna Island is usually calm. The windiest month is October, followed by September and August. October’s average wind speed of around 5.7 knots (6.6 MPH or 10.6 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid October where average top sustained speeds reach 12.5 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Tanna 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||4.9||Light breeze||10.6||Gentle breeze|
|Feb||4.4||Light breeze||9.7||Gentle breeze|
|Mar||3.5||Barely noticeable||8.7||Gentle breeze|
|Apr||3.7||Barely noticeable||8.9||Gentle breeze|
|May||4.5||Light breeze||10.3||Gentle breeze|
|Jun||5||Light breeze||10.4||Gentle breeze|
|Jul||4.9||Light breeze||10.2||Gentle breeze|
|Aug||5.1||Light breeze||10.8||Gentle breeze|
|Sep||5.2||Light breeze||10.9||Gentle breeze|
|Oct||5.7||Light breeze||11.9||Significant breeze|
|Nov||5.1||Light breeze||11||Gentle breeze|
|Dec||4.8||Light breeze||10.4||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Tanna Island?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Vanuatu; 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 Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Tanna Island, Vanuatu is November, followed by June and March. 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 Tanna Island in December. 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 Tanna Island Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 87.3°F (30.7°C) and 81.3°F (27.4°C) with colder temperatures in the later months. Rain is somewhat common with 5 to 10 days of significant precipitation per month. Fall is fairly slow for tourism, which makes it a good time for those looking for deals.
Winter (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 3 to 4 days of precipitation per month. June – August is the busiest season for tourism in Tanna Island, so lodging and other accommodations may cost more than usual.
Spring (September through November)
Spring daily highs range from 84.9°F (29.4°C) and 80.8°F (27.1°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 3 to 4 days per month. Tourism is the second busiest during these months due to the weather, so hotels may be slightly higher priced.
Summer (December through February)
Weather is perfect this time of year in Tanna Island to be enjoyable for warm weather travelers. The average high during this season is between 88.1°F (31.2°C) and 86°F (30°C). On average, it rains or snows a fair amount: 7 to 8 times per month. These times of year are the slowest with tourists.