Climate and monthly weather forecastPort Nelson, The Bahamas
Climate and monthly weather forecast
The climate of Port Nelson
Port Nelson, located in The Bahamas, thrives in a tropical rainforest climate, represented by Köppen climate classification. Its geographical coordinates, with its proximity to the equator, result in a fairly stable climate year-round, characterized by high temperatures and substantial rainfall. The abundance of sunshine further enhances the tropical allure of this location.Temperatures undergo a minimal shift in Port Nelson throughout the year, coupled with consistent relative humidity, ranging typically from 74% to 80%. The high temperatures oscillate between 23.8°C (74.8°F) (March) and 28.9°C (84°F) (August), while the low ones fluctuates modestly from 22.6°C (72.7°F) (March) to 27.8°C (82°F) (August and September). Sea temperatures largely mirror terrestrial climate, reaching peaks in August and September, and dipping in February and March. The hours of daylight peak in the June (13.6 hours), fostering the longest day time.
Rainfall inequality is starkly pronounced in Port Nelson. The month of October, records the highest amount of rainfall, as well as the highest number of rainy days (23.4 days), signaling the culmination of the rainy season. The driest month with the least amount of rainfall is February, having fewer rainy days (13.8 days) as a corollary.
Despite the considerable cloud cover, Port Nelson witnesses ample sunshine. The hours of sunshine reach their zenith in the month of July (10.3 hours), whereas December and January marks the nadir (6.2 hours). Wind conditions exhibit a subtlety with a slight rise from 19.4km/h (12.1mph) (June) to 25.6km/h (15.9mph) (December).
The best time to visit Port Nelson
Given the weather circumstances, a trip to Port Nelson in late spring-early summer, precisely from April to June, seems appealing. During this period, high temperatures range from 24.8°C (76.6°F) to 27.7°C (81.9°F) and the low ones oscillating from 23.9°C (75°F) to 27°C (80.6°F). Sea temperatures, also amiable, rising from 25.3°C (77.5°F) to 27.7°C (81.9°F), facilitate various water activities. Despite a moderate rainfall ranging between 39mm (1.54") to 58mm (2.28"), the number of rainy days per month is fairly controlled (14.3 days to 17.8 days). Moreover, the city basks in the longest duration of daylight (from 12.7 to 13.4 hours) and sunshine (10.4 to 10.2 hours).The worst time to visit Port Nelson
While every season has its charm, the period from September to November is least favored for a trip to Port Nelson. During this interval, high temperatures stand between 28.6°C (83.5°F) and 26.5°C (79.7°F) and the low ones vary from 27.8°C (82°F) to 25.3°C (77.5°F). Meanwhile, the sea temperatures ranging between 29.3°C (84.7°F) to 27.6°C (81.7°F) respectively. The area also registers the highest rainfall during these months, particularly in October, with 129mm (5.08") in total and approximately 23.4 rainy days. Moreover, the duration of daylight gradually recede from 12.3 to 11 hours and the hours of sunshine also show a descending trend (9.4 to 6.2 hours) in this timeframe.Spring weather in Port Nelson
As spring unfolds in Port Nelson, the temperature springs up from a high of 23.8°C (74.8°F) to 26°C (78.8°F), and from a low of 22.6°C (72.7°F) to 25.2°C (77.4°F) from March to May. Correspondingly, sea temperatures show an upward trend increasing from 24.7°C (76.5°F) to 26.3°C (79.3°F). Rainfall experiences a leap from 26mm (1.02") in March to 83mm (3.27") in May. Meanwhile, the daylight hours fluctuate minimally, advancing from 12 hours to 13.3 hours, while the hours of sunshine increase from 8.6 hours to 9.9 hours.Summer weather in Port Nelson
Summer in Port Nelson is distinguished by its steady high temperature within the range of 27.6°C (81.7°F) to 28.9°C (84°F), while the low varies between 27°C (80.6°F) to 27.8°C (82°F) from June through August. The same holds true for sea temperatures, which ride from 27.7°C (81.9°F) to reach a new zenith of 29.4°C (84.9°F). Rainfall also shows an incline, rising from 58mm (2.28") to 85mm (3.35"). The hours of daylight linger around 13.4 to 13.6 hours and sunshine holds steady between 10.2 to 10.3 hours.Autumn weather in Port Nelson
Autumn brings in a dip in temperatures in Port Nelson. High temperatures dwindle down from 28.6°C (83.5°F) to 26.5°C (79.7°F), whereas low ones decrease from 27.8°C (82°F) to 25.3°C (77.5°F) throughout September to November. Sea temperatures also slowly descend from 29.3°C (84.7°F) to 27.8°C (82°F). Meanwhile, the amount of rainfall peaks in October at 129mm (5.08"), signifying the pinnacle of the rainy season. The duration of daylight and sunshine hours both generally decrease, from 12.3 to 11 hours and from 9.4 to 6.2 hours respectively.Winter weather in Port Nelson
Winter weather in Port Nelson witnesses a sugary glaze of sunny charm. High temperatures stand within the thresholds of 27.9°C (82.2°F) to 24.1°C (75.4°F), while low temperatures wane from 27°C (80.6°F) to 22.8°C (73°F) from December through February. Sea temperatures also follow suit, slipping from 26.5°C (79.7°F) to 24.9°C (76.8°F) in the course of this season. Rainfall volume decreases noticeably, dropping from 53mm (2.09") to 26mm (1.02"). Despite the reduction in hours of daylight from 11 hours to 10.7 hours, the city manages to retain above 9.7 days of sunshine through the winter months.Weather in January
The Bahamas' New Year begins with the intriguing climate of Port Nelson. Bringing a promising start to the year, January offers stable weather with pleasant temperatures and a good share of sunshine. Humidity levels and pressure parameters remain moderate, not causing significant discomfort to residents or tourists. Weather in January »Weather in February
February, the last month of the winter in Port Nelson, is also a moderately hot month, with an average temperature fluctuating between 24°C (75.2°F) and 22.8°C (73°F). Port Nelson, The Bahamas, experiences a transition to a still moderately hot 24°C (75.2°F) in average high-temperatures with the arrival of February, not greatly differing from January's 24.1°C (75.4°F). Weather in February »Weather in March
March, the first month of the spring in Port Nelson, is still a warm month, with temperature in the range of an average high of 23.8°C (74.8°F) and an average low of 22.6°C (72.7°F). Port Nelson notes the coldest temperatures in March, with a high average of 23.8°C (74.8°F) and a low of 22.6°C (72.7°F). Weather in March »Weather in April
April showers in Port Nelson don't just bring May flowers, but also adorn the weather with captivating climatic variables. The onset of springtime brings certain changes, with a notable increase in the daily sunshine duration. Despite the increase in rainfall from March's 26mm (1.02") to 39mm (1.54"), the weather stays pleasant and enjoyable. Weather in April »Weather in May
The merry month of May brings noticeable changes to Port Nelson's weather. The air is moderately humid, while the sea temperatures and daylight hours gradually increase, signalling the approaching summer. Rainfall increases significantly, from 39mm (1.54") in April to 83mm (3.27") in May, paving the way for a damper season in the coming months. Weather in May »Weather in June
June waves the flag of summer in Port Nelson, inviting a different palette of weather characteristics. Despite an increase in rainfall and a drop in wind speed, the month is not characterized as a particularly hard one for those who live there. Weather in June »Weather in July
July, being the middle of the year, brings with it the mid-summer weather in Port Nelson. An increase in sunshine hours adds a golden hue to the city's charm. The highest rainfall of 64mm (2.52") among the summer months indicates frequent refreshing showers. Weather in July »Weather in August
As Port Nelson moves towards late summer in August, the weather patterns carry along an alluring essence. Almost resonating with July's climate, August's characteristics project slight variations. Rainfall surges to a noticeable 85mm (3.35"), the month receiving the highest rainfall of the year. Weather in August »Weather in September
September inherits August's high rainfall trend with a considerable volume of 101mm (3.98"), ranking it as the month with the second-highest precipitation. The changing weather indices show signs of transitioning seasons, as the city bids farewell to summer. Weather in September »Weather in October
October rings in autumn in Port Nelson, bearing changes in the weather pattern. The significant drop in rainfall from September's 101mm (3.98") to 129mm (5.08") heralds the end of the rainy season. A noticeable decrease in sunshine hours and sea temperature adds to the autumnal feel. Weather in October »Weather in November
The penultimate month of the year, November brings in elements of late autumn in Port Nelson. The quick transition from the wetter October to a drier month is evident in the reduction of rainfall to 53mm (2.09"). A visible decline in the daylight and sunshine hours marks the approaching winter. Weather in November »Weather in December
Winter is back in Port Nelson with the arrival of December. The weather displays significant changes from the previous month, threading in winter's distinct elements. A further decrease in rainfall to 40mm (1.57") propounds the drier climate characteristic of the winter months. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Port Nelson, The Bahamas
The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is March (23.8°C).
The months with the highest average low temperature are August and September (27.8°C).
The coldest month (with the lowest average low temperature) is March (22.6°C).
Average pressure
Port Nelson, The Bahamas
- Average pressure in January:
1018.8mbar - Average pressure in February:
1018.6mbar - Average pressure in March:
1018.4mbar - Average pressure in April:
1017.1mbar - Average pressure in May:
1016.5mbar - Average pressure in June:
1016.7mbar
- Average pressure in July:
1017.6mbar - Average pressure in August:
1016.1mbar - Average pressure in September:
1014.2mbar - Average pressure in October:
1013.3mbar - Average pressure in November:
1015.4mbar - Average pressure in December:
1017.9mbar
The month with the highest atmospheric pressure is January (1018.8mbar).
The month with the lowest atmospheric pressure is October (1013.3mbar).
Average wind speed
Port Nelson, The Bahamas
- Average wind speed in January:
25km/h - Average wind speed in February:
24.7km/h - Average wind speed in March:
24.4km/h - Average wind speed in April:
23.4km/h - Average wind speed in May:
22.3km/h - Average wind speed in June:
19.4km/h
- Average wind speed in July:
22.2km/h - Average wind speed in August:
21.9km/h - Average wind speed in September:
19.5km/h - Average wind speed in October:
22.6km/h - Average wind speed in November:
25.1km/h - Average wind speed in December:
25.6km/h
The windiest month (with the highest average wind speed) is December (25.6km/h).
The calmest month (with the lowest average wind speed) is June (19.4km/h).
Average humidity
Port Nelson, The Bahamas
The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall
Port Nelson, The Bahamas
The wettest month (with the highest rainfall) is October (129mm).
The driest months (with the least rainfall) are February and March (26mm).
Average rainfall days
Port Nelson, The Bahamas
- Average rainfall days in January:
15.7 days - Average rainfall days in February:
13.8 days - Average rainfall days in March:
14.2 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
19.9 days - Average rainfall days in August:
19.8 days - Average rainfall days in September:
21.2 days - Average rainfall days in October:
23.4 days - Average rainfall days in November:
18.4 days - Average rainfall days in December:
17.9 days
The month with the highest number of rainy days is October (23.4 days).
The month with the least rainy days is February (13.8 days).
Average sea temperature
Port Nelson, The Bahamas
The best month for swimming (with the highest average sea temperature) is August (29.4°C).
The coldest months (with the lowest average sea temperature) are February and March (24.7°C).
Average daylight / Average sunshine
Port Nelson, The Bahamas
- Average daylight in January:
10h and 54min - Average daylight in February:
11h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 42min - Average daylight in May:
13h and 18min - Average daylight in June:
13h and 36min
- Average daylight in July:
13h and 24min - Average daylight in August:
12h and 54min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
11h and 0min - Average daylight in December:
10h and 42min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in January:
6h and 0min - Average sunshine in February:
6h and 24min - Average sunshine in March:
8h and 36min - Average sunshine in April:
10h and 24min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 24min - Average sunshine in October:
7h and 24min - Average sunshine in November:
6h and 12min - Average sunshine in December:
6h and 12min
The month with the most sunshine is April (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days
Port Nelson, The Bahamas
- Average sunshine days in January:
9.7 days - Average sunshine days in February:
9.1 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
10 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
7.1 days - Average sunshine days in August:
6.2 days - Average sunshine days in September:
5.1 days - Average sunshine days in October:
5.3 days - Average sunshine days in November:
5.6 days - Average sunshine days in December:
7.6 days
The month with the most sunshine days is March (11.3 days).
The month with the least sunshine days is September (5.1 days).
Average UV index
Port Nelson, The Bahamas
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover
Port Nelson, The Bahamas
The months with the most cloud cover are January and October (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 35).
Average visibility
Port Nelson, The Bahamas
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).





