The best times to visit Sao Tome and Principe for ideal weather are

January 1st to December 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Sao Tome and Principe Travel Info

Weather in Sao Tome and Principe

Temperature

Average temperatures in Sao Tome and Principe vary very little. Considering humidity, temperatures feel hot all year with a very low chance of rain throughout the year. The area is less temperate than some — in the 34th 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 Sao Tome and Principe, the hottest months are March, April, and then February. See average monthly temperatures below. The warmest time of year is generally early to mid March where highs are regularly around 87.7°F (30.9°C) with temperatures rarely dropping below 75.2°F (24°C) at night.

Sao Tome and Principe Temperatures (Fahrenheit)

Key
High
Average
Low

Sao Tome and Principe Temperatures (Celsius)

Key
High
Average
Low

“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.

Sao Tome and Principe Perceived Temperature (F)

Key
High
Average
Low

Sao Tome and Principe Perceived Temperature (C)

Key
High
Average
Low

 

Average Sao Tome and Principe 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

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan86.280.373.7
Feb87.180.874.2
Mar86.981.174.5
Apr86.780.974.8
May85.980.875
Jun82.978.574.2
Jul81.376.872.4
Aug82.777.672.7
Sep8479.173.9
Oct84.479.574.2
Nov84.379.674.4
Dec8580.374.8

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan30.126.823.2
Feb30.627.123.4
Mar30.527.323.6
Apr30.427.223.8
May29.927.123.9
Jun28.325.823.4
Jul27.424.922.4
Aug28.225.322.6
Sep28.926.223.3
Oct29.126.423.4
Nov29.126.423.6
Dec29.426.823.8

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sao Tome and Principe are April, May, 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 early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late March with an average of 0 days of significant precipitation the week of March 26th.

When can you find snow in Sao Tome and Principe? 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 Sao Tome and Principe.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Sao Tome and Principe (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan2%01
Feb2%00.4
Mar2%00.6
Apr0%00
May0%00
Jun0%00
Jul0%00
Aug0%00
Sep0%00
Oct1%00.1
Nov0%00
Dec1%00.1

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan202.5
Feb201
Mar201.5
Apr000
May000
Jun000
Jul000
Aug000
Sep000
Oct100.3
Nov000
Dec100.3

 

Humidity and Wind

Sao Tome and Principe has some very humid months, and high humidity throughout the year. The least humid month is September (73.8% relative humidity), and the most humid month is November (79%).

Wind in Sao Tome and Principe is usually calm. The windiest month is June, followed by July and August. June’s average wind speed of around 10.1 knots (11.6 MPH or 18.7 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 June where average top sustained speeds reach 15.8 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Sao Tome and Principe.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan4.8Light breeze10.1Gentle breeze
Feb5.3Light breeze11.6Significant breeze
Mar6Light breeze13.3Gentle breeze
Apr6.2Light breeze12.9Significant breeze
May7.2Gentle breeze14Gentle breeze
Jun10.1Gentle breeze15.2Significant breeze
Jul9.4Gentle breeze14.8Gentle breeze
Aug7.5Gentle breeze13Significant breeze
Sep6.7Light breeze12.8Gentle breeze
Oct5.9Light breeze11.8Significant breeze
Nov6.2Light breeze12.6Gentle breeze
Dec5.2Light breeze10.8Gentle breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan78.4%
Feb77.3%
Mar77.5%
Apr77.9%
May76.8%
Jun74.8%
Jul74.3%
Aug73.8%
Sep73.8%
Oct77.5%
Nov79%
Dec77.9%

 

Is it Safe to Travel to Sao Tome and Principe?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Sao Tome and Principe; 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 Sao Tome and Principe is June, followed by October and January. 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 Sao Tome and Principe in August. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 29.8 in August means 29.8% of the tourists vs. June.

 

 

Overall Sao Tome and Principe Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 87.3°F (30.7°C) and 84.8°F (29.3°C) with similar temperatures in the later months. Rain is extremely rare with 0 to 1 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with about 0 days of precipitation per month. June – August is the second busiest season for tourism in Sao Tome and Principe, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 85°F (29.4°C) and 83.7°F (28.7°C), which will feel very nice given the humidity and wind. It rains or snows a trivial amount: approximately 0 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is perfect this time of year in Sao Tome and Principe to be enjoyable for warm weather travelers. The average high during this season is between 87.7°F (30.9°C) and 84.6°F (29.2°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the busiest with tourists.

 

Best Times to Travel › Sao Tome and Principe