The best times to visit American Samoa for ideal weather are
July 23rd to September 9th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
American Samoa Travel Guide
Other American Samoa Travel Info
Weather in American Samoa
Temperature
Average temperatures in American Samoa vary barely at all. Considering humidity, temperatures feel hot all year with a chance of rain throughout most of the year. The area is far less temperate than some — in the 4th 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 American Samoa, the hottest months are March, February, and then April. See average monthly temperatures below. The warmest time of year is generally early to mid March where highs are regularly around 88.2°F (31.2°C) with temperatures rarely dropping below 79.2°F (26.2°C) at night.
American Samoa Temperatures (Fahrenheit)
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American Samoa Temperatures (Celsius)
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“Feels-Like” Temperatures
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.
American Samoa Perceived Temperature (F)
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American Samoa Perceived Temperature (C)
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Average American Samoa 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.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 87.1 | 82 | 77.6 |
| Feb | 87.4 | 82.3 | 77.9 |
| Mar | 87.8 | 82.7 | 78.2 |
| Apr | 87.2 | 82.3 | 77.8 |
| May | 85.9 | 81.6 | 77.6 |
| Jun | 84.4 | 81 | 77.5 |
| Jul | 83.7 | 80.4 | 77.1 |
| Aug | 83.6 | 79.9 | 76.4 |
| Sep | 84.6 | 80.4 | 76.6 |
| Oct | 85.4 | 80.9 | 77.2 |
| Nov | 86.1 | 81.5 | 77.4 |
| Dec | 86.4 | 81.9 | 77.7 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 30.6 | 27.8 | 25.3 |
| Feb | 30.8 | 27.9 | 25.5 |
| Mar | 31 | 28.2 | 25.7 |
| Apr | 30.7 | 27.9 | 25.4 |
| May | 29.9 | 27.6 | 25.3 |
| Jun | 29.1 | 27.2 | 25.3 |
| Jul | 28.7 | 26.9 | 25.1 |
| Aug | 28.7 | 26.6 | 24.7 |
| Sep | 29.2 | 26.9 | 24.8 |
| Oct | 29.7 | 27.2 | 25.1 |
| Nov | 30.1 | 27.5 | 25.2 |
| Dec | 30.2 | 27.7 | 25.4 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in American Samoa are August, September, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid July. For example, on the week of July 16th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early December with an average of 2 days of significant precipitation the week of December 3rd.
When can you find snow in American Samoa? 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 American Samoa.
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Snow on the Ground
The graph below shows the average snow on the ground in American Samoa (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 33% | 0 | 10 |
| Feb | 26% | 0 | 6 |
| Mar | 24% | 0 | 4.9 |
| Apr | 23% | 0 | 5.1 |
| May | 27% | 0 | 6.4 |
| Jun | 21% | 0 | 4 |
| Jul | 19% | 0 | 3.3 |
| Aug | 14% | 0 | 3.6 |
| Sep | 17% | 0 | 3.3 |
| Oct | 19% | 0 | 4.4 |
| Nov | 25% | 0 | 7.1 |
| Dec | 30% | 0 | 8.3 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 33 | 0 | 25.4 |
| Feb | 26 | 0 | 15.2 |
| Mar | 24 | 0 | 12.4 |
| Apr | 23 | 0 | 13 |
| May | 27 | 0 | 16.3 |
| Jun | 21 | 0 | 10.2 |
| Jul | 19 | 0 | 8.4 |
| Aug | 14 | 0 | 9.1 |
| Sep | 17 | 0 | 8.4 |
| Oct | 19 | 0 | 11.2 |
| Nov | 25 | 0 | 18 |
| Dec | 30 | 0 | 21.1 |
Humidity and Wind
American Samoa has some very humid months, and high humidity throughout the year. The least humid month is March (75.8% relative humidity), and the most humid month is November (78.9%).
Wind in American Samoa is usually moderate. The windiest month is July, followed by August and June. July’s average wind speed of around 10 knots (11.5 MPH or 18.5 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late July where average top sustained speeds reach 17.3 knots, which is considered a fresh breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in American Samoa.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | 6.1 | Light breeze | 12.2 | Significant breeze |
| Feb | 5.8 | Light breeze | 11.7 | Significant breeze |
| Mar | 5.5 | Light breeze | 11.6 | Significant breeze |
| Apr | 5.7 | Light breeze | 11.5 | Significant breeze |
| May | 7 | Gentle breeze | 13 | Significant breeze |
| Jun | 9.6 | Gentle breeze | 15.4 | Significant breeze |
| Jul | 10 | Gentle breeze | 15.5 | Significant breeze |
| Aug | 9.9 | Gentle breeze | 15.3 | Significant breeze |
| Sep | 9.4 | Gentle breeze | 14.9 | Significant breeze |
| Oct | 7.9 | Gentle breeze | 13.8 | Significant breeze |
| Nov | 6.5 | Light breeze | 12.8 | Significant breeze |
| Dec | 7 | Gentle breeze | 13 | Significant breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 77.1% |
| Feb | 76.7% |
| Mar | 75.8% |
| Apr | 76.3% |
| May | 78.5% |
| Jun | 78.1% |
| Jul | 77.1% |
| Aug | 76.1% |
| Sep | 77% |
| Oct | 78.6% |
| Nov | 78.9% |
| Dec | 77.3% |
Is it Safe to Travel to American Samoa?
Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for American Samoa; 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 Oct 26, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in American Samoa is July, followed by June and September. 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 American Samoa in March. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall American Samoa Travel Experience by Season
Fall (March through May)
Humidity and temperatures combine to make this season feel warm. Highs range from 88.2°F (31.2°C) and 85.2°F (29.6°C) with similar temperatures in the later months. Rain is somewhat common with 7 to 8 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 very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with 4 to 6 days of precipitation per month. June – August is the busiest season for tourism in American Samoa, so lodging and other accommodations may cost more than usual.
Spring (September through November)
Spring daily highs range from 86.4°F (30.2°C) and 83.8°F (28.8°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 5 to 8 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 American Samoa to be enjoyable for warm weather travelers. The average high during this season is between 87.9°F (31.1°C) and 85.6°F (29.8°C). On average, it rains or snows a fair amount: 7 to 10 times per month. These times of year are the second busiest with tourists.
Best Times to Travel › American Samoa