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Contents
- The climate of Cacheu
- The best time to visit Cacheu
- The worst time to visit Cacheu
- Spring weather in Cacheu
- Summer weather in Cacheu
- Autumn weather in Cacheu
- Winter weather in Cacheu
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Cacheu
Cacheu, a city located in Guinea-Bissau, is predominated by a Köppen classification termed as Aw, which represents a tropical wet and dry or savanna climate. This signifies a weather pattern characterized by consistently high temperatures throughout the year, along with a pronounced dry season. The temperature typically ranges from a low of 21.2°C (70.2°F) to a high of 37.1°C (98.8°F). The lowest temperature is generally observed in January, while the highest normally comes in March.
Humidity levels vary widely from 26% to 81%, with the driest month generally being January and the most humid falling in August. Rainfall varies significantly throughout the year, with the driest months being January and December that virtually see no rainfall. Conversely, the wettest month is August, receiving up to 254mm (10") of rainfall over an average of 27.1 days.
Sea temperatures also exhibit variations, usually ranging between 23.3°C (73.9°F) and 28.7°C (83.7°F). The number of daylight hours range from 11.4 to 12.8 hours, while the amount of sunshine ranges from 5.7 to 9.9 hours. The UV index remains high throughout the year, typically at 7.
Humidity levels vary widely from 26% to 81%, with the driest month generally being January and the most humid falling in August. Rainfall varies significantly throughout the year, with the driest months being January and December that virtually see no rainfall. Conversely, the wettest month is August, receiving up to 254mm (10") of rainfall over an average of 27.1 days.
Sea temperatures also exhibit variations, usually ranging between 23.3°C (73.9°F) and 28.7°C (83.7°F). The number of daylight hours range from 11.4 to 12.8 hours, while the amount of sunshine ranges from 5.7 to 9.9 hours. The UV index remains high throughout the year, typically at 7.
The best time to visit Cacheu
For individuals looking for a comfortable climate, particularly tourists, the best period to visit Cacheu extends from November to February. During this time, the city exhibits minimal rainfall, ranging from 0mm (0") to 1mm (0.04"), coupled with lower humidity levels of between 26% and 45%. Despite the reduced humidity and rainfall, the temperature remains relatively high, oscillating between 21.2°C (70.2°F) to 35.3°C (95.5°F), which may offer a pleasant environment for outdoor activities.
The worst time to visit Cacheu
On the other hand, the least favorable time to visit Cacheu extends from June to September. The weather during this period is characterized by high humidity level fluctuating from 65% to 81%, and a substantial amount of rainfall ranging from 32mm (1.26") to 254mm (10"). The temperature, while remaining high, reaches up to 36.7°C (98.1°F) in this season, coupled with heavy rainfall can make it uncomfortable for various outdoor activities.
Spring weather in Cacheu
The spring season, ranging from March to May in the city of Cacheu, is marked by gradually increasing humidity and warmth. The temperature shifts between 22.8°C (73°F) to 37.1°C (98.8°F), creating warm conditions. The rainfall, starting negligible in March at 1mm (0.04"), shows a drastic increase and reaches up to 11mm (0.43") in May with rainy days increasing to 4 from almost half a day in March.
Summer weather in Cacheu
Summer, extending from June to August in Cacheu, is characterized by maximal rainfall and humidity. The temperature remains high with values between 25.3°C (77.5°F) to 36.7°C (98.1°F), though the heavy rainfall of up to 254mm (10") in August and very high humidity levels make this season the wettest period of the year.
Autumn weather in Cacheu
Autumn, falling between September to November in Cacheu, is represented by decreasing levels of rainfall and humidity. Temperatures fluctuate from 24.7°C (76.5°F) to 35.1°C (95.2°F). September still experiences a significant amount of rainfall, but by November, the precipitation drops sharply to only 5mm (0.2").
Winter weather in Cacheu
Winter in Cacheu, from December to February, encounters the driest period of the year with virtually no rainfall. Temperature range decreases slightly and oscillates between 21.2°C (70.2°F) to 35.3°C (95.5°F). Despite being the driest period, the daylight hours and sunshine hours very much resemble the spring season.
Weather in January
As the first month of the year, January presents a pleasant start to the year in Cacheu, Guinea-Bissau. Although quite dry and far from the rainy season, this month still creates a magnificent atmosphere while the daylight lasts for about 11.5 hours. Weather in January »
Weather in February
Moving from January to February, residents in Cacheu observe a gradual shift in the weather conditions. Observing a slight increase in average high and low temperatures, the heat in February is slightly more prominent than in January. Weather in February »
Weather in March
The weather in March presents a balance between dry and wet climate conditions in Cacheu. The notable feature for this month is the jump in rainfall to 11mm (0.43"), signaling the steady transition towards the wet season. However, the temperatures remain relatively steady, only slightly higher than the previous month, and daylight hours maintain their length. Weather in March »
Weather in April
The month of April is a turning point in Cacheu's weather pattern, as the rainy season begins to take root. The city experiences more rainfall than in the previous months, with an average accumulation of 32mm (1.26"). Residents observe a considerable increase in relative humidity, making the city noticeably muggy. Weather in April »
Weather in May
May emerges as the first month to profoundly demonstrate the impact of the rainy season in Cacheu. With a record average rainfall of 199mm (7.83"), the highest for the year, the city witnesses its wettest month. The urban scenery transforms significantly with more clouds accumulating in the sky, and increased rainfall brings about an apparent peak in humidity. Weather in May »
Weather in June
With rainfall taking a slight drop to 133mm (5.24") in June, the torrential downpour observed in May starts to moderate in Cacheu. However, the humidity remains high, keeping the atmosphere muggy throughout the month. Furthermore, the sea temperature starts to rise significantly, providing a warm, inviting sea throughout the day. Weather in June »
Weather in July
July is perhaps one of the most humid months in Cacheu, with high rainfall, relative humidity, and low sunshine hours. A significant drop in average sunshine hours to 6.6 hours indicates a largely cloudy atmosphere as the sea temperature peaks at 28.7°C (83.7°F). Weather in July »
Weather in August
August transitions smoothly from July, mirroring similar weather conditions in Cacheu. The temperatures remain moderately high and steady, with rainfall tapering off to 254mm (10") in August from its July counterpart. The most striking weather pattern this month is the extremely high relative humidity, peaking at 81%, the highest for the year. Weather in August »
Weather in September
Departing from the extremely wet conditions of August, September brings about a particular change in Cacheu. Here, the city sees the end of the peak rainy season, making a progressive shift towards the dry season. With sea temperatures averaging 28.5°C (83.3°F) and the hours of sunshine increasing, the weather begins to regain its dry characteristics. Weather in September »
Weather in October
October makes its mark as an essential transitional month in Cacheu weather dynamics. While rainfall reduces significantly to 41mm (1.61"), the hours of sunshine increase, heralding the onset of the dry season. The sea temperature remains averagely high, offering warm and inviting ocean conditions. Weather in October »
Weather in November
November brings about a signifycant change, moving Cacheu more decisively into its dry season. With only 5mm (0.2") of average rainfall throughout the month, the city shifts dramatically towards drier conditions. Consequently, the temperature and sea temperature remain fairly steady, causing no major discomfort to the residents. Weather in November »
Weather in December
Ending the year on a dry note, December sees no rainfall, making it one of the driest months for Cacheu. Conditions mirror those observed in January, with a similar temperature range, average sea temperature, and humidity level. Weather in December »
[Resources]Frequently asked questions
What is the least humid month in Cacheu?
The least humid month in Cacheu, Guinea-Bissau, is January, with an average relative humidity of 26%.
What is the driest month in Cacheu?
In Cacheu, Guinea-Bissau, rain does not fall in January, February and December.
How many days does it rain in Cacheu?
In Cacheu, Guinea-Bissau, during the entire year, the rain falls for 103.1 days and collects up to 677mm (26.65") of precipitation.
What are the months with the highest UV index in Cacheu?
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7.
What is the month with the coldest sea water in Cacheu?
The month with the coldest seawater in Cacheu, Guinea-Bissau, is February, with an average sea temperature of 23.3°C (73.9°F).
What time of the year is the hottest in Cacheu?
March temperatures in Cacheu tend to peak at an average high of 37.1°C (98.8°F) and dip to a low of 21.9°C (71.4°F).
When does it rain in Cacheu?
March through November are months with rainfall in Cacheu, Guinea-Bissau.
What are the months with the most sunshine in Cacheu?
March and April, with an average of 9.9h of sunshine, are months with the most sunshine in Cacheu.
When are the longest days in Cacheu?
With an average of 12h and 48min of daylight, June has the longest days of the year in Cacheu, Guinea-Bissau.
What is the month with the lowest UV index in Cacheu?
July and August, with an average maximum UV index of 6, are months with the lowest UV index in Cacheu.
What are the coldest months in Cacheu?
August is Cacheu's coldest month, registering average high temperatures of 29.8°C (85.6°F) and lows of 24.8°C (76.6°F).
What is the most humid month in Cacheu?
With an average relative humidity of 81%, August is the most humid month in Cacheu.
What is the rainiest month in Cacheu?
The month with the most rainfall in Cacheu is August, when the rain falls for 27.1 days and typically aggregates up to 254mm (10") of precipitation.
What is the month with the least sunshine in Cacheu?
The month with the least sunshine in Cacheu, Guinea-Bissau, is August, with an average of 5.7h of sunshine.
What is the month with the warmest sea water in Cacheu?
With an average sea temperature of 28.9°C (84°F), October is the month with the warmest seawater in Cacheu.
What is the month with the shortest days in Cacheu?
The month with the shortest days in Cacheu, Guinea-Bissau, is December, with an average of 11h and 24min of daylight.
Is there Daylight Saving Time (DST) in Cacheu?
Cacheu does not utilize Daylight Saving Time (DST). GMT timezone is used over the entire year.
Average temperature
Cacheu, Guinea-Bissau
The warmest month (with the highest average high temperature) is March (37.1°C).
The month with the lowest average high temperature is August (29.8°C).
The month with the highest average low temperature is June (25.7°C).
The coldest month (with the lowest average low temperature) is January (21.2°C).
Average pressure
Cacheu, Guinea-Bissau
- Average pressure in January:
1011.6mbar - Average pressure in February:
1010.6mbar - Average pressure in March:
1010.3mbar - Average pressure in April:
1010.2mbar - Average pressure in May:
1011.2mbar - Average pressure in June:
1012.6mbar
- Average pressure in July:
1012.9mbar - Average pressure in August:
1012.4mbar - Average pressure in September:
1012.2mbar - Average pressure in October:
1011.2mbar - Average pressure in November:
1010.6mbar - Average pressure in December:
1011.3mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is April (1010.2mbar).
Average wind speed
Cacheu, Guinea-Bissau
- Average wind speed in January:
11.5km/h - Average wind speed in February:
12km/h - Average wind speed in March:
11.7km/h - Average wind speed in April:
12.1km/h - Average wind speed in May:
12.5km/h - Average wind speed in June:
12.8km/h
- Average wind speed in July:
11.3km/h - Average wind speed in August:
11.2km/h - Average wind speed in September:
9.2km/h - Average wind speed in October:
8.6km/h - Average wind speed in November:
8.9km/h - Average wind speed in December:
10.6km/h
The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is October (8.6km/h).
Average humidity
Cacheu, Guinea-Bissau
The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is January (26%).
Average rainfall
Cacheu, Guinea-Bissau
The wettest month (with the highest rainfall) is August (254mm).
The driest months (with the least rainfall) are January, February and December (0mm).
Average rainfall days
Cacheu, Guinea-Bissau
- Average rainfall days in January:
0.1 days - Average rainfall days in February:
0.3 days - Average rainfall days in March:
0.5 days - Average rainfall days in April:
1.8 days - Average rainfall days in May:
4 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
22.3 days - Average rainfall days in August:
27.1 days - Average rainfall days in September:
20.5 days - Average rainfall days in October:
13.6 days - Average rainfall days in November:
2.2 days - Average rainfall days in December:
0.4 days
The month with the highest number of rainy days is August (27.1 days).
The month with the least rainy days is January (0.1 days).
Average sea temperature
Cacheu, Guinea-Bissau
The best month for swimming (with the highest average sea temperature) is October (28.9°C).
The coldest month (with the lowest average sea temperature) is February (23.3°C).
Average daylight / Average sunshine
Cacheu, Guinea-Bissau
- Average daylight in January:
11h and 3min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 4min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 3min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 4min - Average daylight in December:
11h and 2min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in January:
9h and 4min - Average sunshine in February:
9h and 5min - Average sunshine in March:
9h and 5min - Average sunshine in April:
9h and 5min - Average sunshine in May:
9h and 5min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
6h and 4min - Average sunshine in August:
5h and 4min - Average sunshine in September:
7h and 2min - Average sunshine in October:
9h and 1min - Average sunshine in November:
9h and 4min - Average sunshine in December:
9h and 4min
The months with the most sunshine are March and April (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).
Average sunshine days
Cacheu, Guinea-Bissau
- Average sunshine days in January:
30.7 days - Average sunshine days in February:
27.8 days - Average sunshine days in March:
30.5 days - Average sunshine days in April:
28.5 days - Average sunshine days in May:
25.8 days - Average sunshine days in June:
17.9 days
- Average sunshine days in July:
6.9 days - Average sunshine days in August:
3.3 days - Average sunshine days in September:
7.4 days - Average sunshine days in October:
15.1 days - Average sunshine days in November:
27.1 days - Average sunshine days in December:
30.5 days
The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (3.3 days).
Average UV index
Cacheu, Guinea-Bissau
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover
Cacheu, Guinea-Bissau
The month with the most cloud cover is August (Cloud cover 58).
The months with the least cloud cover are March and April (Cloud cover 7).
Average visibility
Cacheu, Guinea-Bissau
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
Cacheu, Guinea-Bissau
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