January weather forecast
Bolama, Guinea-Bissau

January

Weather in January

Bolama, Guinea-Bissau usually experiences its driest month in January, with rainfall measuring exactly 0mm (0"). High sea temperatures combine with high pressure to create a stable and dry atmospheric environment. The climate stays generally warm although it's not as hot compared to the upcoming months. Still, visitors should prepare for ample sunlight, as cloud cover remains relatively rare during January. The weather pattern for this period also contributes to excellent visibility, resulting in clear, sunny days which are perfect for sightseeing or beach activities.

Temperature

Bolama in January witnesses an average high-temperature of a still tropical 34.2°C (93.6°F), indicating a slight variation from December's 34°C (93.2°F). Bolama anticipates a considerable daily temperature fluctuation in January, with low temperatures averaging a pleasant 21.8°C (71.2°F).

Humidity

The least humid month is January, with an average relative humidity of 32%.

Rainfall

January and February are months without rainfall.

Sea temperature

In January, the average sea temperature is 26.3°C (79.3°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In Bolama, the average length of the day in January is 11h and 32min.
On the first day of the month, sunrise is at 07:21 and sunset at 18:49. On the last day of January, in Bolama, sunrise is at 07:26 and sunset at 19:04 GMT.

Sunshine

In Bolama, the average sunshine in January is 9.7h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.

Frequently asked questions

How hot does it get in Bolama in January?
In Bolama, in January, the average high-temperature is 34.2°C (93.6°F), and the average low-temperature is 21.8°C (71.2°F).
What is the least humid month?
With an average relative humidity of 32%, January is the least humid month in Bolama.
What is the average humidity in January?
In January, the average relative humidity in Bolama is 32%.
What is the driest month?
In Bolama, rain does not fall in January and February.
Does it rain in January?
In January, it doesn't rain. December is the latest month when it rains.
What is the water temperature in January?
In Bolama, the average seawater temperature in January is 26.3°C (79.3°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
What is the average length of the day in January?
The average day length in January is 11h and 32min.
What time are sunrise and sunset in January in Bolama?
In January, on the first day of the month, sunrise is at 07:21 and sunset at 18:49. On the last day of the month, sunrise is at 07:26 and sunset at 19:04 GMT.
How long on average sun shines in January?
In January, the average sunshine duration is 9.7h.
What are the months with the highest UV index?
The months with the highest UV index are January through December, with an average maximum UV index of 7.
When is the lowest UV index?
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
What is the UV index reading in January?
The average daily maximum UV index in January is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
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
Average temperature in January
Bolama, Guinea-Bissau
  • Average high temperature in January: 34.2°C

The warmest month (with the highest average high temperature) is March (35.5°C).
The month with the lowest average high temperature is August (29.6°C).

  • Average low temperature in January: 21.8°C

The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

Average pressure in January
Bolama, Guinea-Bissau
  • Average pressure in January: 1011.5mbar

The month with the highest atmospheric pressure is July (1012.9mbar).
The months with the lowest atmospheric pressure are March and April (1010.1mbar).

Average wind speed in January
Bolama, Guinea-Bissau
  • Average wind speed in January: 11.2km/h

The windiest month (with the highest average wind speed) is June (13.2km/h).
The calmest months (with the lowest average wind speed) are October and November (9km/h).

Average humidity in January
Bolama, Guinea-Bissau
  • Average humidity in January: 32%

The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is January (32%).

Average rainfall in January
Bolama, Guinea-Bissau
  • Average rainfall in January: 0mm

The wettest month (with the highest rainfall) is August (270mm).
The driest months (with the least rainfall) are January and February (0mm).

Average rainfall days in January
Bolama, Guinea-Bissau
  • Average rainfall days in January: 0.3 days

The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is January (0.3 days).

Average sea temperature in January
Bolama, Guinea-Bissau
  • Average sea temperature in January: 26.3°C

The best month for swimming (with the highest average sea temperature) is November (28.6°C).
The coldest month (with the lowest average sea temperature) is February (25.4°C).

Average daylight in January /
Average sunshine in January
Bolama, Guinea-Bissau
  • Average daylight in January: 11h and 3min

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 30min).

  • Average sunshine in January: 9h and 4min

The months with the most sunshine are March, April and May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).

Average sunshine days in January
Bolama, Guinea-Bissau
  • Average sunshine days in January: 30.7 days

The month with the most sunshine days is January (30.7 days).
The month with the least sunshine days is August (2.9 days).

Average UV index in January
Bolama, Guinea-Bissau
  • Average UV index in January: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in January
Bolama, Guinea-Bissau
  • Average cloud cover in January: 12

The month with the most cloud cover is August (Cloud cover 57).
The months with the least cloud cover are March and April (Cloud cover 7).

Average visibility in January
Bolama, Guinea-Bissau
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).

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