Normal weather for Guinea-Bissau in September
It's hot in September in Guinea-Bissau with an average temperature of 31°C. Temperatures this month range from a low of 30°C to a high of 33°C. At night, you can expect temperatures between 24°C and 25°C.
In September, there is an average of 373 mm of precipitation, spread over 29 days. The wind speed is around 3 Bft, mostly coming from the South.
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Guinea-Bissau in September |
New York | ||
|---|---|---|---|
 Average Temperature |
31°C | 27°C | |
 High Temp |
33°C | 31°C | |
| Low Temp |
30°C | 21°C | |
 Total Precipitation |
373 mm | 57 mm | |
| Rainy Days |
29 days | 9 days | |
The climate in Guinea-Bissau is based on weather data from Bissau. Other spots might have different weather. You can check out all destinations in Guinea-Bissau to get the full picture of the climate.
Start of September
The month of September starts in Guinea-Bissau with hot temps, averaging around 31°C during the day and nights around 25°C. There are plenty of days with a good chance of precipitation.
Mid September
By mid-September, daytime temps rise to around 32°C, with nights around 25°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Guinea-Bissau is around 32°C, while nighttime temps are about 25°C. There’s a significant chance of many days with precipitation.
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Looking for sun? September isn’t a good month to be in Guinea-Bissau. The temperature is nice, but there’s too much chance of rain.
Temperature records for Guinea-Bissau in September
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Daily Temperature in September in Guinea-Bissau
This chart shows the average daily high and low temperatures in September for Guinea-Bissau, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Guinea-Bissau
The chart below shows the average daily precipitation in September for Guinea-Bissau, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 29 days of precipitation in Guinea-Bissau.
Daily UV Index in September in Guinea-Bissau
This chart shows the average daily UV index in September in Guinea-Bissau, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Guinea-Bissau Over the Years
This chart shows the average temperature in September in Guinea-Bissau, measured in degrees Celsius, over the past few years.
Total Precipitation in September in Guinea-Bissau Over the Years
This chart shows the average precipitation in September in Guinea-Bissau, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in September for Guinea-Bissau
Click on any day in September to get detailed info about the usual weather on that day in Guinea-Bissau. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Guinea-Bissau
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Average Weather in Guinea-Bissau by Month
Click on a month below to see detailed weather info for Guinea-Bissau. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Guinea-Bissau for all months at once
