Guinea-Bissau Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

• Bissau, Guinea-Bissau latitude & longitude; 11°52'N 15°35'W.
• Altitude; 21 m (69 ft).
• The average temperature in Bissau, Guinea-Bissau is 26.5 °C (80 °F).
• The range of average monthly temperatures is 2.5 °C.
• The warmest average max/ high temperature is 34 °C (93 °F) in March.
• The coolest average min/ low temperature is 18 °C (64 °F) in January.
• Guinea-Bissau receives on average 1977.5 mm (77.9 in) of precipitation annually or 165 mm (6.5 in) each month.
• On balance there are 133 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 11 days on an average month.
• The month with the driest weather is March when on balance 0.5 mm (0.0 in) of rain, sleet, hail or snow falls across 3 days.
• The month with the wettest weather is August when on balance 617 mm (24.3 in) of rain, sleet, hail or snow falls across 28 days.
• Mean relative humidity for an average year is recorded as 56.8% and on a monthly basis it ranges from 34% in January to 81% in August.
• There is an average range of hours of sunshine in Guinea-Bissau of between 3.8 hours per day in August and 9.9 hours per day in April.
• On balance there are 2692 sunshine hours annually and approximately 7.4 sunlight hours for each day.
• On balance there are 0 days annually registering frost in Guinea-Bissau and in January there are on average 0 days with frost.

Guinea-Bissau Climate Graph (Metric | Imperial units)

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Guinea-Bissau Weather Averages

Guinea-Bissau Climograph/ Climate Chart (imperial)

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Guinea-Bissau Temperatures in Farenheit