Climate and monthly weather forecastBemposta, São Tomé and Príncipe

Climate and monthly weather forecast

The climate of Bemposta

Located in São Tomé and Príncipe, Bemposta finds itself primarily experiencing a tropical wet and dry climate, known as As in the Köppen climate classification. This tropical accessibility translates to a temperature that remains quite warm throughout the year. The highest average temperatures typically range between 24.5°C (76.1°F) to 28.8°C (83.8°F), while the lowest average temperatures teeter from 23°C (73.4°F) to 27.5°C (81.5°F).

Humidity stands relatively high throughout the year, varying from 76% to 83%. Sunshine hours vary slightly across the year. They are highest in February, yielding around 8.6 hours per day, and dip to their lowest in August garnishing just 5 hours daily. The UV Index remains quite steady, fluctuating between 5 to 7.

Rainfall in Bemposta varies extensively. The wettest months are typically from January to May and again from October to December with rainfall ranging from 100mm (3.94") to upwards of 220mm (8.66"). On the other hand, a significant reduction in rainfall is seen between June and September where it dips as low as 9mm (0.35"). Alongside rain, wind speed also displays a pronounced fluctuation, it rises to approximately 17.7km/h (11mph) mid-year, while towards the beginning and the end of the year, it becomes milder hovering around 10.8-11.7km/h (-7.3mph).

The best time to visit Bemposta

The dry season, from June to September, is often the most favored time to visit Bemposta. It is during these months that rainfall drops significantly, going as low as 9mm (0.35") in July. This combined with lower humidity levels, ranging between 81% and 83%, and more manageable wind speeds of around 17.7km/h (11mph), leads to a more comfortable climate for most travelers. Despite the reduced rainfall, temperatures remain warm, and hours of sunshine per day begin to increase again after June, making it an ideal time for outdoor activities.

The worst time to visit Bemposta

The wettest months from January to May and again from October to December tend to be less favorable for visitors due to the heavy rainfall which can reach 224mm (8.82") in November. Additionally, humidity is at its peak during these months averaging around 79% to 81%, which when combined with high rainfall, creates a clammy climate. At the same time, the amount of daily sunshine is reduced substantially.

Spring weather in Bemposta

In Bemposta, the spring months of March, April, and May are categorized by increasing temperatures ranging from 28°C (82.4°F) to 28.6°C (83.5°F) and humidity that can reach up to 79%. These months also experience significant rainfall. The rainfall peaks in May with an average of 122mm (4.8"). Wind speeds begin to pick up in May, climbing to average speeds of 13km/h (8.1mph), while sunlight hours dwindle to 7.6 hours per day.

Summer weather in Bemposta

Summer in Bemposta, which spans June to August, characterizes a drier season. During this time, rainfall reduces considerably, falling to as low as 9mm (0.35") in July. However, this coincides with an increase in wind speeds which peak at 17.7km/h (11mph) in June and July. Despite being the drier months, the heat does not subside. Temperatures remain high, reaching up to 25.6°C (78.1°F) in June, and only slightly cooling to 24.8°C (76.6°F) by August.

Autumn weather in Bemposta

Autumn, from September to November, signals the return of the rainy season. In this period, rainfall begins to increase again, starting with 35mm (1.38") in September and peaking at 224mm (8.82") in November. Despite this, daylight timings remain steady with 12.1 hours per day. The temperature remains relatively consistent, with highs between 25.5°C (77.9°F) and 27.1°C (80.8°F).

Winter weather in Bemposta

The winter period from December to February continues the trend of heavy rainfall. The temperatures also remain moderately hot, ranging from 27°C (80.6°F) to 28.4°C (83.1°F). The high levels of humidity, around 77%, combined with relatively high wind speeds of up to 11.7km/h (7.3mph), keep the weather anything but cold. This season also experiences fewer sunlight hours per day, with an average of 8.3 hours of sun in December.

Weather in January

January in Bemposta, São Tomé and Príncipe, commences the new year with typically tropical conditions. Humidity and temperatures remain consistently high, contrasting with the windy conditions due to north-westerly trade winds. Weather in January »

Weather in February

As February arrives, the temperatures continue to hover in the high 20s°C, and Bemposta retains its tropical feel. The average rainfall decreases to 100mm (3.94") this month, although it's not a significant deviation from January’s level. Weather in February »

Weather in March

March experiences a marginal rise in temperatures yet remains remarkably consistent with its predecessors. The city records the most rainfall between January and April, reaching a peak of 119mm (4.69"). The sights and sounds of nature are at a crescendo, with colorful birdlife and blooming vegetation. Weather in March »

Weather in April

April ushers in slightly reduced temperatures compared to March, leading to a less intense warmth. There's a slight increase in rainfall from 119mm (4.69") in March to 126mm (4.96") in April, making the soil quite saturated. The trade winds coming in from the sea offer a cool respite, making the weather feel comfortable despite the high humidity. Weather in April »

Weather in May

The weather in Bemposta starts to transition in May, with the mercury dropping a bit more. Rainfall decreases to 122mm (4.8"), marking a shift away from the heavier rains of previous months. When the sun shines brightly in the stable blue sky, the vibrant floral hues and lush landscape provide an aesthetic treat. Weather in May »

Weather in June

June introduces a herald of the mid-year transition, bearing a substantial shift in weather patterns. The temperature dips further, and the rainfall decreases drastically to 22mm (0.87"), marking a sharp decline from May's rainfall levels. Weather in June »

Weather in July

The weather in July in Bemposta transitions further towards lower temperatures and a considerable decline in rainfall. July receives the year's lowest rainfall, a mere 9mm (0.35"), making it the driest month of the year. The clear scenery, combined with reduced temperatures and minimal rain, makes July an excellent time for outdoor activities. Weather in July »

Weather in August

August in Bemposta features a modest rise in temperature but retains July’s characteristically dry conditions. With rainfall of just 21mm (0.83"), August continues the dry spell, maintaining the island’s appealing weather for outdoor activities. Weather in August »

Weather in September

September brings a rise in both temperature and rainfall in Bemposta, signaling a shift in weather patterns again. The rainfall increases substantially from 21mm (0.83") in August to 35mm (1.38") in September, heralding the onset of a wetter season. Weather in September »

Weather in October

October is a dynamic month in Bemposta, boasting a further increase in temperature and a drastic surge in rainfall. The rainfall skyrocketing to 220mm (8.66") indicates a return to the wetter conditions typical of the island’s weather pattern. Weather in October »

Weather in November

The weather continues to warm in Bemposta during November, with the city recording a slight rise in temperatures. The month is distinguished by high amounts of rainfall with 224mm (8.82"), making it the wettest month of the year. Weather in November »

Weather in December

As Bemposta greets December, the rainfall decreases to 159mm (6.26"). Still, the city remains relatively wet, given the heavy rainfalls of the previous two months. The consistently warm temperature further contributes to a vibrant feel across the city. Weather in December »

Frequently asked questions

Throughout the year, in Bemposta, there are 241.7 rainfall days, and 1287mm (50.67") of precipitation is accumulated.

January, November and December, with an average of 12h and 6min of daylight, are months with the shortest days.

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Bemposta, São Tomé and Príncipe.

February has the most sunshine of the year, with an average of 8.6h of sunshine.

Bemposta reaches its average highest temperatures in March, measuring 28.8°C (83.8°F) at the peak and 27.5°C (81.5°F) at the lowest.

The least humid month in Bemposta, São Tomé and Príncipe, is March, with an average relative humidity of 76%.

The month with the longest days in Bemposta, São Tomé and Príncipe, is June, with an average of 12h and 6min of daylight.

July, with an average high of 24.5°C (76.1°F) and a low of 23°C (73.4°F), signifies the coldest month of the year in Bemposta, São Tomé and Príncipe.

July is the month with the least rainfall in Bemposta, São Tomé and Príncipe. Rain falls for 8.4 days and accumulates 9mm (0.35") of precipitation.

July is the month with the lowest UV index, with an average maximum UV index of 5.

August through October, with an average relative humidity of 83%, are most humid months.

With an average of 5h of sunshine, August has the least sunshine of the year in Bemposta, São Tomé and Príncipe.

November is the month with the most rainfall in Bemposta, São Tomé and Príncipe. Rain falls for 26.7 days and accumulates 224mm (8.82") of precipitation.

Bemposta does not observe Daylight Saving Time (DST). GMT timezone is used throughout the entire year.

Average temperature
Bemposta, São Tomé and Príncipe

The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is July (24.5°C).

The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is July (23°C).

Average pressure
Bemposta, São Tomé and Príncipe

The month with the highest atmospheric pressure is July (1014.3mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).

Average wind speed
Bemposta, São Tomé and Príncipe

The windiest month (with the highest average wind speed) is July (17.7km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).

Average humidity
Bemposta, São Tomé and Príncipe

The months with the highest relative humidity are August, September and October (83%).
The month with the lowest relative humidity is March (76%).

Average rainfall
Bemposta, São Tomé and Príncipe

The wettest month (with the highest rainfall) is November (224mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days
Bemposta, São Tomé and Príncipe

The month with the highest number of rainy days is December (28.6 days).
The month with the least rainy days is June (7.3 days).

Average daylight / Average sunshine
Bemposta, São Tomé and Príncipe

The month with the longest days is June (Average daylight: 12h and 6min).
The months with the shortest days are January, November and December (Average daylight: 12h and 6min).

The month with the most sunshine is February (Average sunshine: 8h and 36min).
The month with the least sunshine is August (Average sunshine: 5h and 0min).

Average sunshine days
Bemposta, São Tomé and Príncipe

The month with the most sunshine days is June (16.4 days).
The month with the least sunshine days is December (1.5 days).

Average UV index
Bemposta, São Tomé and Príncipe

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 5).

Average cloud cover
Bemposta, São Tomé and Príncipe

The month with the most cloud cover is August (Cloud cover 65).
The month with the least cloud cover is February (Cloud cover 37).

Average visibility
Bemposta, São Tomé and Príncipe

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