The best times to visit Bissau for ideal weather are

October 29th to June 10th

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



Other Bissau Travel Info

Weather in Bissau


Average temperatures in Bissau vary very little. Considering humidity, temperatures feel hot all year with a low chance of precipitation most of the year. The area is less temperate than some — in the 22nd 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 Bissau, the hottest months are May, June, and then April. See average monthly temperatures below. The warmest time of year is generally late May where highs are regularly around 96.2°F (35.7°C) with temperatures rarely dropping below 76.1°F (24.5°C) at night.

Bissau Temperatures (Fahrenheit)


Bissau Temperatures (Celsius)


“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.

Bissau Perceived Temperature (F)


Bissau Perceived Temperature (C)



Average Bissau 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 90.3 79.5 65.7
Feb 94.4 82.1 67.6
Mar 95.2 83.3 70.3
Apr 94.4 83.9 72.1
May 93.5 84.8 75.1
Jun 91.1 84.6 77.1
Jul 87.7 81.8 76
Aug 85.8 80.3 75.6
Sep 87.6 81.7 76.2
Oct 89.6 83.6 76.8
Nov 90.6 83.1 74.4
Dec 89.5 79.4 68

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 32.4 26.4 18.7
Feb 34.7 27.8 19.8
Mar 35.1 28.5 21.3
Apr 34.7 28.8 22.3
May 34.2 29.3 23.9
Jun 32.8 29.2 25.1
Jul 30.9 27.7 24.4
Aug 29.9 26.8 24.2
Sep 30.9 27.6 24.6
Oct 32 28.7 24.9
Nov 32.6 28.4 23.6
Dec 31.9 26.3 20



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Bissau are January, February, and then March. 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 mid August with an average of 5 days of significant precipitation the week of August 13th.

When can you find snow in Bissau? 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 Bissau.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Bissau (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0
Feb 0% 0 0
Mar 0% 0 0
Apr 0% 0 0
May 4% 0 1.8
Jun 12% 0 3.5
Jul 37% 0 15.3
Aug 59% 0 25.7
Sep 40% 0 19.9
Oct 19% 0 5.9
Nov 3% 0 0.9
Dec 0% 0 0

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0
Feb 0 0 0
Mar 0 0 0
Apr 0 0 0
May 4 0 4.6
Jun 12 0 8.9
Jul 37 0 38.9
Aug 59 0 65.3
Sep 40 0 50.5
Oct 19 0 15
Nov 3 0 2.3
Dec 0 0 0


Humidity and Wind

Bissau has some very humid months, and dry months in the opposite season. The least humid month is January (27.1% relative humidity), and the most humid month is August (80.7%).

Wind in Bissau is usually calm. The windiest month is May, followed by April and February. May’s average wind speed of around 7 knots (8.1 MPH or 13.1 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 early to mid May where average top sustained speeds reach 12 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Bissau.

Avg. Relative Humidity


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

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.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 6.6 Light breeze 10.2 Gentle breeze
Feb 6.9 Light breeze 11.1 Significant breeze
Mar 6.6 Light breeze 10.6 Gentle breeze
Apr 7 Gentle breeze 11.2 Significant breeze
May 7 Gentle breeze 11.6 Gentle breeze
Jun 6.7 Light breeze 11.6 Significant breeze
Jul 6 Light breeze 10.7 Gentle breeze
Aug 6.5 Light breeze 11.4 Significant breeze
Sep 5.4 Light breeze 9.6 Gentle breeze
Oct 4.8 Light breeze 8.6 Gentle breeze
Nov 5.2 Light breeze 8.3 Gentle breeze
Dec 6.1 Light breeze 9.9 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 27.1%
Feb 29.2%
Mar 40.8%
Apr 47.5%
May 53.5%
Jun 64.1%
Jul 75.4%
Aug 80.7%
Sep 76.6%
Oct 71.1%
Nov 57.8%
Dec 39.7%


Is it Safe to Travel to Bissau?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Oct 07, 2019 there are travel warnings and regional advisories for Guinea-Bissau; exercise a high degree of caution and avoid some areas. 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 Bissau, Guinea-Bissau is August, followed by June and July. 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 Bissau in September. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

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 32.7 in September means 32.7% of the tourists vs. August.



Overall Bissau Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 96.2°F (35.7°C) and 92.4°F (33.6°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 second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 4 to 18 days of precipitation per month. June – August is the busiest season for tourism in Bissau, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 91.2°F (32.9°C) and 86.1°F (30.1°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 1 to 12 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is perfect this time of year in Bissau to be enjoyable for warm weather travelers. The average high during this season is between 96.2°F (35.7°C) and 88.5°F (31.4°C). On average, it rains or snows a insignificant amount: consistently 0 times per month. These times of year are fairly slow with tourists.


Best Times to TravelGuinea-Bissau › Bissau, Guinea-Bissau