Climate and monthly weather forecastMarsh Harbour, The Bahamas
Climate and monthly weather forecast
The climate of Marsh Harbour
Marsh Harbour, situated in The Bahamas, is dominated by a Tropical monsoon climate, identified by the Köppen climate classification as Am. This particular climate classification indicates heavy and copious rainfall during the monsoon season. Throughout the year, the city demonstrates a significant continuity in temperature, with the lowest averages presenting at 15°C (59°F) and ascending to highs of 31°C (87.8°F). The level of rainfall also sees a substantial escalation from a low of 45mm (1.77"), increasing to a peak of 155mm (6.1").In terms of the sea temperature, a gentle fluctuation from a mild 22.8°C (73°F) escalates to a warm 29.6°C (85.3°F), providing ideal conditions for various aquatic activities throughout the year. Daylight hours over the months see a slight increase, starting at an average of 10.7 hours and peaking at 13.8 hours. On the other hand, the UV index intensifies from a moderate 5 to a strong 11. At the height of the year, the town enjoys around 9 hours of daily sunshine.
The distinguishing feature of Marsh Harbour's weather pattern is the remarkable increase in rainfall between May and October, during which rainfall exceeds 98mm (3.86") monthly, with the number of rainfall days reaching up to 21 days. Simultaneously, this is the period that temperatures are at their highest peak, with averages reaching up to 31°C (87.8°F).
The best time to visit Marsh Harbour
Given the unique weather patterns, the most recommendable period to visit Marsh Harbour falls between November and April. During these months, the weather is relatively dry, with rainfall averages lowering to less than 58mm (2.28") and the number of rainfall days dropping to 12 or less. Aside from drier conditions, the temperatures are relatively milder, ranging from 15°C (59°F) to 26°C (78.8°F). The sea temperature fluctuates between 23.3°C (73.9°F) and 26.3°C (79.3°F), which are still comfortable for swimming or snorkeling.The worst time to visit Marsh Harbour
Despite its distinctive tropical appeal, the period between May and October is generally the least advisable time to visit Marsh Harbour because of the high rainfall averages that exceed 98mm (3.86"), with upwards of 18 rainfall days each month. Moreover, this period coincides with the highest temperature averages of up to 31°C (87.8°F), which can be uncomfortable for some visitors. It is the peak monsoon season and visitors may find outdoor activities severely limited during this time due to heavy rain.Spring weather in Marsh Harbour
Spring in Marsh Harbour lasts from March through May, with temperatures rising gradually from 23°C (73.4°F) to a warm 28°C (82.4°F). Rainfall starts to increase during this season, ranging from 53mm (2.09") in March to a significantly higher 124mm (4.88") in May. Additionally, despite the beginning of the wet period in May, the daylight extends up to 13.5 hours, offering extended periods of outdoor activities.Summer weather in Marsh Harbour
During the summer months of June through August, Marsh Harbour experiences the highest temperatures of the year, ranging from 30°C (86°F) to 31°C (87.8°F). However, these hot temperatures coincide with the peak monsoon season, where rainfall averages rose from 142mm (5.59") to 112mm (4.41"). Furthermore, the strong UV index of 11 during this period calls for adequate sun protection.Autumn weather in Marsh Harbour
Autumn, extending from September to November, witnesses a gradual drop in temperature from 30°C (86°F) to a cooler 26°C (78.8°F). This period still registers high rainfall quantities with an impressive 155mm (6.1") registered in October. Therefore, despite the reduction in temperature, the consistent high humidity due to the heavy rainfall could negatively impact outdoor activities.Winter weather in Marsh Harbour
The winter months, from December through February, in Marsh Harbour are considerably milder, with temperatures oscillating between 15°C (59°F) and 24°C (75.2°F). Rainfall drastically reduces to 45mm (1.77") in December, thus creating a dry spell until February, when it slightly increases to 58mm (2.28"). With an average of 10.7 hours of daylight, the winter months exhibit the shortest days of the year, but certainly offer a refreshing escape from the monsoon-dominated weather.Weather in January
The year opens in Marsh Harbour, The Bahamas, with January weather typically characterized by moderate temperatures and abundant rainfall. With rainfall averaging 45mm (1.77") over 12 days, the month often sees placid skies burst into rainy spells. Weather in January »Weather in February
Transitioning from January to February, the weather dynamics in Marsh Harbour exhibit minute changes. Rainfall increases, turning the environment verdant, signaling the transition towards spring. Yet the city continues to bask under the sun for a considerable portion of the day, while the UV index takes an upward leap. Weather in February »Weather in March
March in Marsh Harbour is a period of minor fluctuations when compared to the previous month. With spring well underway, temperatures continue to climb, but the city does not yield to extreme heat. Rainfall frequents less than in February, making room for more sunlit hours. Weather in March »Weather in April
April ushers in a distinctive warmth to Marsh Harbour's weather, marking the edge of the transition period. Rainfall sees a slight increase reaching 59mm (2.32"), sprawled across seven days of the month. The advent of summer becomes evident, but the city adeptly keeps extremes at bay, successfully maintaining a harmonic balance between temperatures and rainfall. Weather in April »Weather in May
As May steps in, Marsh Harbour experiences the first wave of summer. Rainfall dramatically increases to 124mm (4.88"), an almost double leap from the previous month, spread over 13 days. The city embraces these showers with grace, managing to still offer plenty of sunshine hours despite the frequent downpours. Weather in May »Weather in June
June witness a marked shift in the weather pattern, with Marsh Harbour reaching its rainfall peak at 142mm (5.59"), indicating the zenith of the rainy season. While rainy events become more commonplace, they often provide a welcomed respite from the tropical heat. Weather in June »Weather in July
Following the June deluge, July in Marsh Harbour sees the rainfall levels scaling down to 98mm (3.86"), potentially providing a sense of relief to residents and tourists. Daylight conditions are similar to June, with the city being sunlit for most of the day. Weather in July »Weather in August
August ushers in a slight increase in rainfall, reaching 112mm (4.41") over 21 days. As drought-like conditions are non-existent in Marsh Harbour, the considerable precipitation continues to accentuate the region's tropical character. Weather in August »Weather in September
In September, Marsh Harbour showcases a dynamic weather pattern, highlighted by a sharp increase in rainfall to 148mm (5.83"). Despite escalating precipitation, the city manages to shine under the sun for most of the day, adhering to its tropical identity. Weather in September »Weather in October
October in Marsh Harbour continues to rank high on the rainfall charts, reaching 155mm (6.1"). Indeed, the highest rainfall of the year occurs in October, warranting the need for preparations accordingly. Although the wet conditions persist, the city does not compromise on its sunshine hours, allowing daylight to shine through. Weather in October »Weather in November
As November arrives in Marsh Harbour, there is a pronounced drop in rainfall figures to 58mm (2.28"). This respite in precipitation paves the way for a more balanced weather pattern as the end of the year nears. Sunshine hours and daylight follow a declining trend, signifying the progression of the season towards winter. Weather in November »Weather in December
Concluding the year, December reflects the winter essence in Marsh Harbour's weather. Despite being the coldest month, the temperature lows possibly drop only to a comfortable 16°C (60.8°F), the lowest for the year, dismissing any extreme cold. Weather in December »Updated: Jan 30, 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
January and February are known as Marsh Harbour's coldest months, with an average high-temperature of 23°C (73.4°F).
January is the month with the least rainfall. Rain falls for 12 days and accumulates 45mm (1.77") of precipitation.
Throughout the year, there are 175 rainfall days, and 1106mm (43.54") of precipitation is accumulated.
The months with the least sunshine in Marsh Harbour are January, February, September through December, with an average of 7h of sunshine.
January and December, with an average maximum UV index of 5, are months with the lowest UV index in Marsh Harbour, The Bahamas.
With an average sea temperature of 22.8°C (73°F), February is the month with the coldest seawater in Marsh Harbour.
On Sunday, 10. March 2024, at 02:00, Daylight Saving Time starts in Marsh Harbour, The Bahamas, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 02:00, and the time zone reverts from EDT to EST.
The months with the most sunshine in Marsh Harbour are April, May, July and August, with an average of 9h of sunshine.
The months with the highest UV index are May through August, with an average maximum UV index of 11.
With an average of 13h and 48min of daylight, June has the longest days of the year.
Marsh Harbour sees its peak of temperatures during July and August, with an average high-temperature of 31°C (87.8°F).
The month with the warmest seawater in Marsh Harbour, The Bahamas, is August, with an average sea temperature of 29.6°C (85.3°F).
October is the month with the most rainfall. Rain falls for 19 days and accumulates 155mm (6.1") of precipitation.
The month with the shortest days is December, with an average of 10h and 30min of daylight.
Average temperature
Marsh Harbour, The Bahamas
The warmest months (with the highest average high temperature) are July and August (31°C).
The months with the lowest average high temperature are January and February (23°C).
The months with the highest average low temperature are July, August and September (24°C).
The coldest months (with the lowest average low temperature) are January and February (15°C).
Average rainfall
Marsh Harbour, The Bahamas
- Average rainfall in January:
45mm - Average rainfall in February:
58mm - Average rainfall in March:
53mm - Average rainfall in April:
59mm - Average rainfall in May:
124mm - Average rainfall in June:
142mm
The wettest month (with the highest rainfall) is October (155mm).
The driest month (with the least rainfall) is January (45mm).
Average rainfall days
Marsh Harbour, The Bahamas
- Average rainfall days in January:
12 days - Average rainfall days in February:
10 days - Average rainfall days in March:
10 days - Average rainfall days in April:
7 days - Average rainfall days in May:
13 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
21 days - Average rainfall days in September:
21 days - Average rainfall days in October:
19 days - Average rainfall days in November:
12 days - Average rainfall days in December:
12 days
The months with the highest number of rainy days are August and September (21 days).
The month with the least rainy days is April (7 days).
Average sea temperature
Marsh Harbour, The Bahamas
The best month for swimming (with the highest average sea temperature) is August (29.6°C).
The coldest month (with the lowest average sea temperature) is February (22.8°C).
Average daylight / Average sunshine
Marsh Harbour, The Bahamas
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 30min - Average daylight in June:
13h and 48min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
The months with the most sunshine are April, May, July and August (Average sunshine: 9h).
The months with the least sunshine are January, February, September, October, November and December (Average sunshine: 7h).
Average UV index
Marsh Harbour, The Bahamas
The months with the highest UV index are May, June, July and August (UV index 11).
The months with the lowest UV index are January and December (UV index 5).
