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Contents
- The climate of Porto Novo
- The best time to visit Porto Novo
- The worst time to visit Porto Novo
- Spring weather in Porto Novo
- Summer weather in Porto Novo
- Autumn weather in Porto Novo
- Winter weather in Porto Novo
- 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
Climate and monthly weather forecast
The climate of Porto Novo
Porto Novo is located in Cape Verde and falls under a 'Subtropical desert' climate, as per the Köppen climate classification known as BWh. Porto Novo continually experiences warm temperatures year-round. The months see highs varying from 21.8°C (71.2°F) to a scorching 26.7°C (80.1°F). Correspondingly the low temperatures range from 20.7°C (69.3°F) to 25.7°C (78.3°F).
Relative humidity remains consistent, with slight fluctuations observed from 73% to 82%. Rainfall is an interesting aspect of Porto Novo weather, with nominal amounts noted from January to June and moderate to heavy levels from August to October. From a mere 1mm (0.04") to 2mm (0.08") during most of the year, it jumps to a staggering amount of 31mm (1.22") in September.
Another notable pattern is the daylight received, changing from 11.2 hours in January to 13.1 hours by June. Sunshine hours follow a similar trend, from a minimum of 7.5 hour in August to a maximum of 9.4 in May. The UV index stays mostly at category 6 throughout the year. Wind speed, another noticeable factor, varies between 18.2km/h (11.3mph) and 28.7km/h (17.8mph).
Relative humidity remains consistent, with slight fluctuations observed from 73% to 82%. Rainfall is an interesting aspect of Porto Novo weather, with nominal amounts noted from January to June and moderate to heavy levels from August to October. From a mere 1mm (0.04") to 2mm (0.08") during most of the year, it jumps to a staggering amount of 31mm (1.22") in September.
Another notable pattern is the daylight received, changing from 11.2 hours in January to 13.1 hours by June. Sunshine hours follow a similar trend, from a minimum of 7.5 hour in August to a maximum of 9.4 in May. The UV index stays mostly at category 6 throughout the year. Wind speed, another noticeable factor, varies between 18.2km/h (11.3mph) and 28.7km/h (17.8mph).
The best time to visit Porto Novo
Considering weather conditions, visiting Porto Novo between May and July will be thrilling. Sea temperatures remain warm, perfect for water-related activities, around 23.8°C (74.8°F) to 24.6°C (76.3°F). With lower rainfall, within 1 to 2mm (0.08"), minimal rainfall days, consistent sunshine hours per day, and a sunlight average of 9.1 to 9.4 hours, these periods offer optimal outdoor activity possibilities.
The worst time to visit Porto Novo
The least recommended time to visit Porto Novo would be August to October. Rainy season peaks here, rainfall averages from 21mm (0.83") to 31mm (1.22") with rainfall days ranging from 6.3 to 9.1. These weather conditions can impede outdoor activities and traveling.
Spring weather in Porto Novo
Spring weather from March to May in Porto Novo will be a comfortable high of 21.9°C (71.4°F) to 23.2°C (73.8°F) and a low of around 20.8°C (69.4°F) to 22°C (71.6°F). This period brings a moderate raindrop count, staying within 1mm (0.04") to 1mm (0.04"), and maintains consistent relative humidity around 76% to 79%.
Summer weather in Porto Novo
Summer from June to August in Porto Novo means experiencing the city's highest temperatures between 23.8°C (74.8°F) to 26.5°C (79.7°F). While the rainfall remains low in June at 2mm (0.08"), there is a sudden surge in August to 21mm (0.83"). The significant increase in rainfall from June to August is complemented by a rise in relative humidity from 81% to 82%.
Autumn weather in Porto Novo
Autumn from September to November in Porto Novo shows varied climate conditions. Starting with warmer September temperatures, which can get up to 26.7°C (80.1°F), it cools down to roughly 25.2°C (77.4°F) by November. The rainfall drops significantly from 31mm (1.22") in September to 4mm (0.16") by November. Humidity levels also decrease in this period, from 82% in September to 76% in November.
Winter weather in Porto Novo
Winter from December to February in Porto Novo offers pleasant warmth, with temperature fluctuating between 21.6°C (70.9°F) to 22.7°C (72.9°F). Exceptionally low rainfall noticed during this period with only 1mm (0.04") to 4mm (0.16"). Winter also boasts consistent daylight averages around 11.2 hours to 11.6 hours with clear skies, making it ideal for numerous outdoor activities.
Weather in January
Commencing the year in Porto Novo, Cape Verde, January exhibits some of the freshest temperatures, with the mercury hovering between 21.6°C (70.9°F) and 22.7°C (72.9°F). With a 73% relative humidity, this month typifies what can be described as a pleasantly warm climate. Weather in January »
Weather in February
February's weather in Porto Novo, Cape Verde appears very similar to that in January, showcasing an equivalent amount of daylight and sunshine hours. Distinct from January however, February presents the absolute maximum wind speed of the year, clocking in at 29.2km/h (18.1mph). Weather in February »
Weather in March
As we progress towards the equinox in March, the weather in Porto Novo, Cape Verde witnesses a subtle transition in its characteristics. While the fluctuation in temperature and humidity is marginal from February to March, the days become a bit longer with more sunshine hours. Weather in March »
Weather in April
In April, the shift from the drier winter months to a slightly more humid season becomes discernible in Porto Novo, Cape Verde. The downpours remain infrequent with an average of 1mm (0.04") over approximately three days. April also notes an increase in relative humidity, now reaching a significant high of 78%. Weather in April »
Weather in May
Embarking on the latter part of the first half of the year, May in Porto Novo, Cape Verde marks a perceptible rise in temperature. From low temperatures of 22°C (71.6°F) to highs of 23.2°C (73.8°F), the weather tends to grow warmer than previous months. Weather in May »
Weather in June
June in Porto Novo, Cape Verde highlights a warm and predominantly dry climate. An increase in the average sea temperature to 23.9°C (75°F) makes swimming and other aquatic activities especially appealing. The weather retains a slight increase in temperature from May and presents the longest daylight hours of the year, reaching 13.1 hours. Weather in June »
Weather in July
As Porto Novo, Cape Verde steps into July, the weather shows substantial alterations. Rainfall levels ascend noticeably to 2mm (0.08"), spread across an average of four days. The peaks in temperature range from 23.3°C (73.9°F) to 24.6°C (76.3°F) and, coupled with the highest relative humidity of 82%, it contributes to a perceptibly warmer and moister environment. Weather in July »
Weather in August
In August, the weather in Porto Novo exhibits significant changes, setting it apart from the rest of the year. With 21mm (0.83") of rain spanning over six days, August holds the distinction of being the first of the wettest months of the year. Weather in August »
Weather in September
September in Porto Novo, Cape Verde, continues the trend set in August and firmly entrenches itself in the wet season, with an average of 31mm (1.22") rainfall spanning across nine days. This also coincides with the maximum sea temperature of 26.6°C (79.9°F), providing the perfect setting for venturing into the sea post a rain shower. Weather in September »
Weather in October
October in Porto Novo, Cape Verde, ushers in a reduction in rainfall, with the average volumes decreasing significantly to 19mm (0.75") from September's 31mm (1.22"). This lessening of rainfall goes hand in hand with reducing relative humidity and a marginal dip in temperature. Weather in October »
Weather in November
November in Porto Novo, Cape Verde, continues October's trend of decreasing rainfall, showcasing a further reduction to 4mm (0.16"). The lowest rainfall amount post the wet season coupled with a sturdy wind speed of 23.6km/h (14.7mph) keeps the ambiance fresh and revitalizing, despite the static temperatures. Weather in November »
Weather in December
Completing the annual cycle, December arrives in Porto Novo, Cape Verde, with a weather profile that resembles January’s. With relative humidity dropping back down to 73% and rainfall levels at 4mm (0.16"), December returns to the drier climate seen at the beginning of the year. Weather in December »
Updated: Jan 26, 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
What is the least humid month in Porto Novo?
The months with the lowest humidity are January and December, with an average relative humidity of 73%.
What is the driest month in Porto Novo?
January, March through May are months with the least rain in Porto Novo, Cape Verde, when the rain falls for 1.3 days and typically aggregates up to 1mm (0.04") of rain.
How many days does it rain in Porto Novo?
In Porto Novo, Cape Verde, during the entire year, the rain falls for 39.3 days and collects up to 91mm (3.58") of precipitation.
When is the lowest UV index in Porto Novo?
The months with the lowest UV index in Porto Novo, Cape Verde, are January through August, November and December, with an average maximum UV index of 6.
What is the coldest time of year in Porto Novo?
February, with average temperatures reaching a high of 21.8°C (71.2°F) and a low of 20.7°C (69.3°F), is the coldest month in Porto Novo.
When is the sea coldest in Porto Novo?
February is the month with the coldest seawater in Porto Novo, Cape Verde, with an average sea temperature of 23.1°C (73.6°F).
What month has the most sunshine in Porto Novo?
May has the most sunshine of the year in Porto Novo, Cape Verde, with an average of 9.4h of sunshine.
When are the longest days in Porto Novo?
June has the longest days of the year in Porto Novo, Cape Verde, with an average of 13h and 6min of daylight.
What is the most humid month in Porto Novo?
The months with the highest humidity in Porto Novo are July through September, with an average relative humidity of 82%.
What is the month with the least sunshine in Porto Novo?
August has the least sunshine of the year in Porto Novo, Cape Verde, with an average of 7.5h of sunshine.
What is the rainiest month in Porto Novo?
The month with the most rainfall in Porto Novo, Cape Verde, is September, when the rain falls for 9.1 days and typically aggregates up to 31mm (1.22") of precipitation.
What is the month with the highest UV index in Porto Novo?
September and October, with an average maximum UV index of 7, are months with the highest UV index.
What are the warmest months in Porto Novo?
October, with its high-temperature average of 26.7°C (80.1°F) and a low-temperature average of 25.7°C (78.3°F), is the warmest month.
What is the month with the warmest sea water in Porto Novo?
The month with the warmest seawater in Porto Novo is October, with an average sea temperature of 26.8°C (80.2°F).
What is the month with the shortest days in Porto Novo?
December has the shortest days of the year, with an average of 11h and 6min of daylight.
Is there Daylight Saving Time (DST) in Porto Novo?
Porto Novo does not observe Daylight Saving Time (DST). -01 timezone is used over the entire year.
Average temperature
Porto Novo, Cape Verde
The warmest month (with the highest average high temperature) is October (26.7°C).
The month with the lowest average high temperature is February (21.8°C).
The months with the highest average low temperature are September and October (25.7°C).
The coldest month (with the lowest average low temperature) is February (20.7°C).
Average pressure
Porto Novo, Cape Verde
- Average pressure in January:
1016.6mbar - Average pressure in February:
1016.2mbar - Average pressure in March:
1015.6mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1015.4mbar - Average pressure in June:
1015.8mbar
- Average pressure in July:
1014.7mbar - Average pressure in August:
1013.3mbar - Average pressure in September:
1013.3mbar - Average pressure in October:
1013.7mbar - Average pressure in November:
1014.3mbar - Average pressure in December:
1015.6mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The months with the lowest atmospheric pressure are August and September (1013.3mbar).
Average wind speed
Porto Novo, Cape Verde
- Average wind speed in January:
28.1km/h - Average wind speed in February:
28.6km/h - Average wind speed in March:
26.2km/h - Average wind speed in April:
25.3km/h - Average wind speed in May:
26.3km/h - Average wind speed in June:
24.6km/h
- Average wind speed in July:
19.8km/h - Average wind speed in August:
18.2km/h - Average wind speed in September:
21.2km/h - Average wind speed in October:
22.2km/h - Average wind speed in November:
23.6km/h - Average wind speed in December:
25.5km/h
The windiest month (with the highest average wind speed) is February (28.6km/h).
The calmest month (with the lowest average wind speed) is August (18.2km/h).
Average humidity
Porto Novo, Cape Verde
The months with the highest relative humidity are July, August and September (82%).
The months with the lowest relative humidity are January and December (73%).
Average rainfall
Porto Novo, Cape Verde
The wettest month (with the highest rainfall) is September (31mm).
The driest months (with the least rainfall) are January, March, April and May (1mm).
Average rainfall days
Porto Novo, Cape Verde
- Average rainfall days in January:
1.3 days - Average rainfall days in February:
1 days - Average rainfall days in March:
2.8 days - Average rainfall days in April:
2.9 days - Average rainfall days in May:
1.4 days - Average rainfall days in June:
1.5 days
- Average rainfall days in July:
4.2 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
9.1 days - Average rainfall days in October:
3.6 days - Average rainfall days in November:
2.8 days - Average rainfall days in December:
2.4 days
The month with the highest number of rainy days is September (9.1 days).
The month with the least rainy days is February (1 days).
Average sea temperature
Porto Novo, Cape Verde
The best month for swimming (with the highest average sea temperature) is October (26.8°C).
The coldest month (with the lowest average sea temperature) is February (23.1°C).
Average daylight / Average sunshine
Porto Novo, Cape Verde
- Average daylight in January:
11h and 1min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 3min - Average daylight in May:
12h and 5min - Average daylight in June:
13h and 1min
- Average daylight in July:
13h and 0min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 2min - Average daylight in December:
11h and 1min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in January:
9h and 1min - Average sunshine in February:
9h and 1min - Average sunshine in March:
9h and 1min - Average sunshine in April:
9h and 2min - Average sunshine in May:
9h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
8h and 1min - Average sunshine in August:
7h and 3min - Average sunshine in September:
8h and 0min - Average sunshine in October:
8h and 4min - Average sunshine in November:
8h and 4min - Average sunshine in December:
9h and 1min
The month with the most sunshine is May (Average sunshine: 9h and 24min).
The month with the least sunshine is August (Average sunshine: 7h and 30min).
Average sunshine days
Porto Novo, Cape Verde
- Average sunshine days in January:
27.8 days - Average sunshine days in February:
25.2 days - Average sunshine days in March:
28 days - Average sunshine days in April:
26.8 days - Average sunshine days in May:
28.8 days - Average sunshine days in June:
26.7 days
- Average sunshine days in July:
22.5 days - Average sunshine days in August:
18.9 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
25.6 days - Average sunshine days in November:
25.3 days - Average sunshine days in December:
27.2 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is September (17.8 days).
Average UV index
Porto Novo, Cape Verde
The months with the highest UV index are September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, November and December (UV index 6).
Average cloud cover
Porto Novo, Cape Verde
The month with the most cloud cover is August (Cloud cover 44).
The month with the least cloud cover is May (Cloud cover 19).
Average visibility
Porto Novo, Cape Verde
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
