This trip involved layovers in Hong Kong and Dubai, and the internet connection at the airports was consistently smooth. Upon arrival in Mauritius, before applying for a local eSIM, I was able to use LINE smoothly with this eSIM. It was also fortunate that I had purchased this eSIM beforehand, as my return flight was canceled due to the US-Israeli airstrikes on Iran, forcing me to reroute via Malaysia and Hong Kong back to Taiwan. This eSIM proved useful at the Malaysian airport. Although I only used this eSIM at airports in these few countries, the internet connection was consistently smooth when watching YouTube, Netflix, and using LINE (text messages and calls), with no issues with intermittent call quality.
Anonymous User
Solo traveler
Guinea-Bissau Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Guinea-Bissau year round climate
Spring (March-May): Average 28-28.6°C, hot and dry climate with very little rainfall. Common activities: Visiting historical sites, exploring nature reserves. Recommended clothing: Light, breathable cotton clothing, hat, sun protection clothing.
Summer (June-August): Average 26.4-27.2°C, hot and humid, heavy rainfall, especially in August. Common activities: Indoor activities such as visiting museums, enjoying local cuisine. Recommended clothing: Light, breathable clothing, rain gear.
Autumn (September-November): Average 26.6-27.5°C, warm and humid climate, rainfall gradually decreasing. Common activities: Outdoor activities such as short trips, visiting beaches. Recommended clothing: Light, breathable clothing, rain gear.
Winter (December-February): Average 27.6-28.6°C, hot and dry climate with almost no rainfall. Common activities: Outdoor activities such as visiting markets, experiencing local culture. Recommended clothing: Light, breathable clothing.
Guinea-Bissau climatological average
Annual average temperature: approx. 27.5°C / Annual rainfall: approx. 1604 mm / Summer humidity: 75%–85% / Rainiest month: August
Guinea-Bissau monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
27.6°C
0
February
28.6°C
0
March
28.6°C
0
April
28.1°C
0
May
28.5°C
7.6
June
27.2°C
159.6
July
26.6°C
423.2
August
26.4°C
466.5
September
26.6°C
263.4
October
26.7°C
280.7
November
27.5°C
1.4
December
27.7°C
1.6
Guinea-Bissau weather for the next seven days
4/23
Thursday
Sunny
40.8°C/21.3°C
4/24
Friday
Sunny
41.6°C/21.7°C
4/25
Saturday
Sunny
42.3°C/20.4°C
4/26
Sunday
Sunny
41.6°C/19.7°C
4/27
Monday
Sunny
40.2°C/19.7°C
4/28
Tuesday
Sunny
41°C/19.4°C
4/29
Wednesday
Sunny
40.8°C/19°C
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