Climate and monthly weather forecastBissora, Guinea-Bissau
Climate and monthly weather forecast
The climate of Bissora
Classified by the Köppen climate classification, the dominant climate in Bissora, Guinea-Bissau is Tropical wet and dry or savanna (Aw). Geographically situated in West Africa, this location experiences a distinct variation in weather conditions throughout the year.A close glance at the climate parameters reveals that temperatures remain relatively high year-round, fluctuating between a record low of 20.1°C (68.2°F) to an extreme high of 40.3°C (104.5°F). Relative humidity in Bissora ranges from 22% to up to 84% over the year, signifying a variation from very dry conditions to periods of significantly high humidity.
Rainfall patterns are indeed unique in Bissora. A considerable shift occurs from utterly dry conditions with virtually no rainfall from January to March and in November and December, to considerably wet conditions of up to 245mm (9.65") in August. Along with the change in volume, the number of rainfall days also alters, surging from less than a day to 27 days in the wettest months.
Bissora enjoys ample sunshine throughout the year, with daylight hours ranging from 11.4 hours to 12.8 hours. The hours of actual sunshine, however, vary from a minimal 5.8 hours to a maximum of 10 hours, considering the cloud cover percentage, which ranges from a low of 6% to a high of 59%.
The best time to visit Bissora
Taking into account temperature, humidity, and rainfall data, the most favourable period to visit Bissora is from November to April. Temperatures during this period range from 30.5°C (86.9°F) to 40.3°C (104.5°F), offering warm and pleasant weather. The rainfall remains at an absolute minimum, ensuring dry weather for outdoor explorations.The worst time to visit Bissora
The least favourable time for a visit is the monsoon period from June to September when Bissora experiences its highest rainfall, culminating at 245mm (9.65") in August. Coupled with high relative humidity values, the weather during these months can be uncomfortably wet and humid.Spring weather in Bissora
March to May constitutes the spring in Bissora where temperatures escalate from 37.9°C (100.2°F) to 40.3°C (104.5°F). The initial spring month remains dry but as the season progresses, rain starts falling with May experiencing up to 6mm (0.24") of rainfall. Relative humidity also begins its upward journey, increasing from 32% to 48%.Summer weather in Bissora
The summer months from June to August bring with them an increase in rainfall and a decrease in temperature. The rain volumes surge dramatically from 39mm (1.54") in June to a maximum of 245mm (9.65") in August while the temperatures hover between 30.5°C (86.9°F) to 36.7°C (98.1°F).Autumn weather in Bissora
The autumn season comprises September to November - a period of transition from wet to dry. As autumn progresses, rainfall reduces from 153mm (6.02") to a low of 4mm (0.16") in November while relative humidity drops from 84% to 51%.Winter weather in Bissora
The winter season in Bissora spans December and January offering cooler temperatures, ranging from 35.9°C (96.6°F) down to 36.3°C (97.3°F). The winter months are the driest period, virtually precipitation-free, making this an excellent time to explore the outdoors.Weather in January
January marks the beginning of the calendar year with a warm climate in Bissora, Guinea-Bissau. The temperatures remain mild making it a promising time for outdoor activities. There is a minimal chance of rainfall, as evidenced by a total of 0mm (0") rainfall throughout the month. Weather in January »Weather in February
As February progresses, the temperature in Bissora continues to rise slightly compared to January. In this month, visitors can expect clear skies, brilliant sunshine, and increased daylight hours. The increase in temperature is not accompanied by rainfall, ensuring the continuation of dry weather. Weather in February »Weather in March
The weather in March in Bissora, Guinea-Bissau sees no significant variations from its predecessor, February. The month experiences increasing temperatures and still remains dry with 0mm (0") rainfall even though humidity levels have seen a slight rise. Weather in March »Weather in April
In April, a minor shift in the climate of Bissora is witnessed with a slight onset of rainfall - total recorded at 1mm (0.04"), while temperatures keep rising. Despite these minor fluctuations, daylight remains abundant making it a suitable month for a sunny vacation. Weather in April »Weather in May
The month of May signals a distinct change in weather patterns in Bissora, as the dry spell of the previous months is replaced with rainfall. The temperatures peak this month, and higher levels of humidity are experienced due to increased precipitation. Weather in May »Weather in June
The month of June in Bissora witnesses a considerable increase in rainfall - total recorded at 39mm (1.54"), marking the peak of the rainy season in the region. Despite this, the temperatures remain fairly high as compared to the earlier months. Weather in June »Weather in July
In Bissora, July marks the mid-year with the highest recorded rainfall at 206mm (8.11"). The temperatures start to taper off slightly, mitigating the heat felt in the previous months. Visitors and residents could expect greater cloud cover along with reduced daylight as July progresses. Weather in July »Weather in August
August in Bissora, Guinea-Bissau, experiences a further increase in rainfall - totaling 245mm (9.65"), making it the wettest month of the year. Despite the heavy rainfall, the temperatures remain relatively high, although there is a slight drop compared to July. Weather in August »Weather in September
As for the weather in September in Bissora, newcomers can expect a gradual reduction in rainfall, with the total amount accumulated decreasing to 153mm (6.02"). The city experiences a somewhat cooler climate with a slight drop in temperatures. Weather in September »Weather in October
Transition to October sees a significant reduction in rainfall in Bissora, with only 56mm (2.2") recorded. Along with the diminishing rain, a slight decrease in temperatures is also observed. The pressure and visibility conditions remain consistent, indicating stable weather. Weather in October »Weather in November
The citizens of Bissora experience a drastic shift in weather in November as the rainfall plummets to 4mm (0.16"), making it a significantly dry month. The drop in temperatures continues, accompanied by a decreasing trend in humidity. Weather in November »Weather in December
The year in Bissora wraps up with December, showcasing a continuation of the dry spell experienced in November. The weather remains considerably cooler than the middle months of the year, with temperatures returning to similar levels as January. Weather in December »Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average relative humidity of 22%, January is the least humid month.
In Bissora, rain does not fall in January through March and December.
Throughout the year, in Bissora, there are 111.2 rainfall days, and 710mm (27.95") of precipitation is accumulated.
March and April, with an average maximum UV index of 8, are months with the highest UV index.
The warmest temperatures in Bissora, Guinea-Bissau, occur during April, when averages reach a peak of 40.3°C (104.5°F) and a low of 22.8°C (73°F).
Months with rainfall in Bissora, Guinea-Bissau, are April through November.
With an average of 10h of sunshine, April has the most sunshine of the year in Bissora.
The month with the longest days in Bissora is June, with an average of 12h and 48min of daylight.
August, with an average high of 30.5°C (86.9°F) and a low of 23.8°C (74.8°F), signifies the coldest month of the year.
The months with the highest humidity in Bissora, Guinea-Bissau, are August and September, with an average relative humidity of 84%.
August is the month with the most rainfall in Bissora. Rain falls for 27 days and accumulates 245mm (9.65") of precipitation.
With an average of 5.8h of sunshine, August has the least sunshine of the year.
August is the month with the lowest UV index in Bissora, with an average maximum UV index of 6.
The month with the shortest days is December, with an average of 11h and 24min of daylight.
Bissora does not utilize Daylight Saving Time (DST). GMT timezone is used over the entire year.
Average temperature
Bissora, Guinea-Bissau
The warmest month (with the highest average high temperature) is April (40.3°C).
The month with the lowest average high temperature is August (30.5°C).
The month with the highest average low temperature is June (25.3°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).
Average pressure
Bissora, Guinea-Bissau
- Average pressure in January:
1011.6mbar - Average pressure in February:
1010.4mbar - Average pressure in March:
1010mbar - Average pressure in April:
1009.8mbar - Average pressure in May:
1010.8mbar - Average pressure in June:
1012.3mbar
- Average pressure in July:
1012.7mbar - Average pressure in August:
1012.4mbar - Average pressure in September:
1012.2mbar - Average pressure in October:
1011.1mbar - Average pressure in November:
1010.5mbar - Average pressure in December:
1011.3mbar
The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is April (1009.8mbar).
Average wind speed
Bissora, Guinea-Bissau
- Average wind speed in January:
9.3km/h - Average wind speed in February:
9.5km/h - Average wind speed in March:
8.7km/h - Average wind speed in April:
9km/h - Average wind speed in May:
9.9km/h - Average wind speed in June:
10.1km/h
- Average wind speed in July:
8.7km/h - Average wind speed in August:
8.3km/h - Average wind speed in September:
6.9km/h - Average wind speed in October:
6.5km/h - Average wind speed in November:
6.9km/h - Average wind speed in December:
8.7km/h
The windiest month (with the highest average wind speed) is June (10.1km/h).
The calmest month (with the lowest average wind speed) is October (6.5km/h).
Average humidity
Bissora, Guinea-Bissau
The months with the highest relative humidity are August and September (84%).
The month with the lowest relative humidity is January (22%).
Average rainfall
Bissora, Guinea-Bissau
The wettest month (with the highest rainfall) is August (245mm).
The driest months (with the least rainfall) are January, February, March and December (0mm).
Average rainfall days
Bissora, Guinea-Bissau
- Average rainfall days in January:
0.1 days - Average rainfall days in February:
0.2 days - Average rainfall days in March:
0.5 days - Average rainfall days in April:
1.5 days - Average rainfall days in May:
3.8 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
23.2 days - Average rainfall days in August:
27 days - Average rainfall days in September:
24.5 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
2.7 days - Average rainfall days in December:
0.3 days
The month with the highest number of rainy days is August (27 days).
The month with the least rainy days is January (0.1 days).
Average daylight / Average sunshine
Bissora, Guinea-Bissau
- Average daylight in January:
11h and 30min - Average daylight in February:
11h and 48min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 42min - Average daylight in June:
12h and 48min
- Average daylight in July:
12h and 48min - Average daylight in August:
12h and 30min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 54min - Average daylight in November:
11h and 36min - Average daylight in December:
11h and 24min
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 48min - Average sunshine in February:
9h and 48min - Average sunshine in March:
9h and 54min - Average sunshine in April:
10h and 0min - Average sunshine in May:
9h and 54min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
6h and 48min - Average sunshine in August:
5h and 48min - Average sunshine in September:
7h and 12min - Average sunshine in October:
9h and 12min - Average sunshine in November:
9h and 42min - Average sunshine in December:
9h and 42min
The month with the most sunshine is April (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 5h and 48min).
Average sunshine days
Bissora, Guinea-Bissau
- Average sunshine days in January:
30.8 days - Average sunshine days in February:
28 days - Average sunshine days in March:
30.6 days - Average sunshine days in April:
28.7 days - Average sunshine days in May:
25.9 days - Average sunshine days in June:
16.3 days
- Average sunshine days in July:
6.2 days - Average sunshine days in August:
2.8 days - Average sunshine days in September:
3.3 days - Average sunshine days in October:
11.9 days - Average sunshine days in November:
26.1 days - Average sunshine days in December:
30.7 days
The month with the most sunshine days is January (30.8 days).
The month with the least sunshine days is August (2.8 days).
Average UV index
Bissora, Guinea-Bissau
The months with the highest UV index are March and April (UV index 8).
The month with the lowest UV index is August (UV index 6).
Average cloud cover
Bissora, Guinea-Bissau
The month with the most cloud cover is August (Cloud cover 59).
The month with the least cloud cover is March (Cloud cover 6).
Average visibility
Bissora, Guinea-Bissau
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are August and September (8km).
