The climate of Port-Gentil (or Mandji) is
tropical, with a hot, rainy period from October to May and a relatively cool, dry period from June to September. The wettest month is November.
The city is located on the coast of Gabon, just south of the equator, in the area of the Ogooué (or Ogowe) delta, the country's main river.
The sun does not shine very often, even in the dry period.
Port Gentil - Climate data
The
average temperature of the coldest month (July) is of 24.5 °C (76.2 °F), that of the warmest month (March) is of 28.3 °C (82.9 °F). Here are the average temperatures.
Port Gentil - Average temperatures (1991-2020) Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
---|
January | 25.3 | 30.3 | 27.8 | 77 | 86 | 82 |
---|
February | 25.4 | 30.8 | 28.1 | 78 | 87 | 82.6 |
---|
March | 25.4 | 31.2 | 28.3 | 78 | 88 | 82.9 |
---|
April | 25.2 | 30.8 | 28 | 77 | 88 | 82.4 |
---|
May | 25 | 29.8 | 27.4 | 77 | 86 | 81.3 |
---|
June | 23.7 | 27.8 | 25.8 | 75 | 82 | 78.4 |
---|
July | 22.4 | 26.7 | 24.5 | 72 | 80 | 76.2 |
---|
August | 23.1 | 27.3 | 25.2 | 74 | 81 | 77.4 |
---|
September | 24.1 | 28.4 | 26.3 | 75 | 83 | 79.3 |
---|
October | 24.6 | 29.1 | 26.8 | 76 | 84 | 80.3 |
---|
November | 24.5 | 29.2 | 26.9 | 76 | 85 | 80.3 |
---|
December | 24.9 | 29.7 | 27.3 | 77 | 85 | 81.2 |
---|
Year | 24.5 | 29.3 | 26.8 | 76 | 84.7 | 80 |
---|
Precipitation amounts to 1955 millimeters (77 inches) per year: it is therefore abundant. It ranges from 3 mm (0.1 in) in the driest month (July) to 350 mm (13.8 in) in the wettest one (November). Here is the average precipitation.
Port Gentil - Average precipitationMonth | Millimeters | Inches | Days |
---|
January | 250 | 9.8 | 15 |
---|
February | 180 | 7.1 | 13 |
---|
March | 265 | 10.4 | 16 |
---|
April | 300 | 11.8 | 16 |
---|
May | 150 | 5.9 | 10 |
---|
June | 12 | 0.5 | 1 |
---|
July | 3 | 0.1 | 0 |
---|
August | 5 | 0.2 | 3 |
---|
September | 30 | 1.2 | 9 |
---|
October | 180 | 7.1 | 17 |
---|
November | 350 | 13.8 | 20 |
---|
December | 225 | 8.9 | 14 |
---|
Year | 1955 | 77 | 134 |
---|
The
sea temperature ranges from 24 °C (75 °F) in July to 29 °C (84 °F) in March. Here are the average sea temperatures.
Port Gentil - Sea temperatureMonth | Celsius (°C) | Fahrenheit (°F) |
---|
January | 28 | 83 | February | 28.5 | 84 | March | 29 | 84 | April | 28.5 | 84 | May | 27 | 81 | June | 25 | 77 | July | 24 | 76 | August | 24.5 | 76 | September | 25.5 | 78 | October | 26.5 | 80 | November | 27 | 81 | December | 27.5 | 82 | Year | 26.9 | 80.4 |
There are on average around 1725
sunshine hours per year. Here are the average hours of sunshine per day.
Port Gentil - Sunshine hoursMonth | Average | Total |
---|
January | 5 | 150 | February | 5.5 | 160 | March | 5 | 155 | April | 5 | 150 | May | 5 | 150 | June | 5 | 155 | July | 5.5 | 165 | August | 4.5 | 135 | September | 4 | 125 | October | 3.5 | 115 | November | 4 | 115 | December | 4.5 | 145 | Year | 4.7 | 1725 |
Port Gentil - Weather by month
Based on the period 1991-2020
January is generally a very hot, muggy month. The average temperature is of 27.8 °C (82 °F), with a minimum of 25.3 °C (77.5 °F) and a maximum of 30.3 °C (86.5 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (72 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F).
Precipitation amounts to 250 mm (9.8 in), distributed over 15 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 28 °C (83 °F). Therefore, the sea is pleasantly warm and allows long swims.
February is generally a very hot, muggy month. The average temperature is of 28.1 °C (83 °F), with a minimum of 25.4 °C (77.8 °F) and a maximum of 30.8 °C (87.5 °F).
On the coldest nights of the month, the temperature usually drops to around 22.5 °C (72.5 °F).
On the warmest days of the month, the temperature usually reaches around 33 °C (91.5 °F).
Precipitation amounts to 180 mm (7.1 in), distributed over 13 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
March, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of 28.3 °C (83 °F), with a minimum of 25.4 °C (77.7 °F) and a maximum of 31.2 °C (88.1 °F).
On the coldest nights, the temperature usually drops to around 22.5 °C (73 °F).
On the warmest days, the temperature usually reaches around 33.5 °C (92 °F).
Precipitation amounts to 265 mm (10.4 in), distributed over 16 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 29 °C (84 °F). Therefore, the sea is pleasantly warm and allows long swims.
April is generally a very hot, muggy month. The average temperature is of 28.0 °C (82 °F), with a minimum of 25.2 °C (77.3 °F) and a maximum of 30.8 °C (87.5 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days, the temperature usually reaches around 33.5 °C (92.5 °F).
Precipitation amounts to 300 mm (11.8 in), distributed over 16 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 28.5 °C (83.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
May is generally a warm to hot, muggy month. The average temperature is of 27.4 °C (81 °F), with a minimum of 25 °C (77.1 °F) and a maximum of 29.8 °C (85.6 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71 °F).
On the warmest days, the temperature usually reaches around 32 °C (89.5 °F).
Precipitation amounts to 150 mm (5.9 in), distributed over 10 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 27 °C (81 °F). Therefore, the sea is pleasantly warm and allows long swims.
June is generally a warm to hot, muggy month. The average temperature is of 25.8 °C (78 °F), with a minimum of 23.7 °C (74.7 °F) and a maximum of 27.8 °C (82.1 °F).
On the coldest nights, the temperature usually drops to around 21.5 °C (71 °F).
On the warmest days, the temperature usually reaches around 30 °C (86 °F).
Precipitation amounts to 12 mm (0.5 in), and all occurs in one day.
The day lasts on average 12 hours and 5 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 25 °C (77.5 °F). Therefore, the sea is warm enough for swimming.
July, the coolest month of the year, is generally a warm to hot, muggy month. The average temperature is of 24.5 °C (76 °F), with a minimum of 22.4 °C (72.3 °F) and a maximum of 26.7 °C (80 °F).
On the coldest nights of the month, the temperature usually drops to around 19.5 °C (67 °F).
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83 °F).
Precipitation amounts to only 3 mm (0.1 in), distributed over 0 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 24 °C (75.5 °F). Therefore, the sea is warm enough for swimming.
August is generally a warm to hot, muggy month. The average temperature is of 25.2 °C (77 °F), with a minimum of 23.1 °C (73.6 °F) and a maximum of 27.3 °C (81.1 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69 °F).
On the warmest days of the month, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to only 5 mm (0.2 in), distributed over 3 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 24.5 °C (76.5 °F). Therefore, the sea is warm enough for swimming.
September is generally a warm to hot, muggy month. The average temperature is of 26.3 °C (79 °F), with a minimum of 24.1 °C (75.4 °F) and a maximum of 28.4 °C (83.2 °F).
On the coldest nights, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days, the temperature usually reaches around 30.5 °C (87.5 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 9 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 35% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 25.5 °C (78.5 °F). Therefore, the sea is warm enough for swimming.
October is generally a warm to hot, muggy month. The average temperature is of 26.8 °C (80 °F), with a minimum of 24.6 °C (76.3 °F) and a maximum of 29.1 °C (84.3 °F).
On the coldest nights, the temperature usually drops to around 21 °C (69.5 °F).
On the warmest days, the temperature usually reaches around 30.5 °C (87 °F).
Precipitation amounts to 180 mm (7.1 in), distributed over 17 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 31% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 26.5 °C (79.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
November is generally a warm to hot, muggy month. The average temperature is of 26.9 °C (80 °F), with a minimum of 24.5 °C (76.1 °F) and a maximum of 29.2 °C (84.6 °F).
On the coldest nights, the temperature usually drops to around 20.5 °C (69.5 °F).
On the warmest days, the temperature usually reaches around 31 °C (88 °F).
Precipitation amounts to 350 mm (13.8 in), distributed over 20 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 27 °C (80.5 °F). Therefore, the sea is pleasantly warm and allows long swims.
December is generally a warm to hot, muggy month. The average temperature is of 27.3 °C (81 °F), with a minimum of 24.9 °C (76.9 °F) and a maximum of 29.7 °C (85.5 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F).
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F).
Precipitation amounts to 225 mm (8.9 in), distributed over 14 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 27.5 °C (81.5 °F). Therefore, the sea is pleasantly warm and allows long swims.