Climate and monthly weather forecastSandy Bay, Jamaica
Climate and monthly weather forecast
The climate of Sandy Bay
Nestled in Jamaica, Sandy Bay follows the Köppen climate classification of Aw, characterized primarily as tropical wet and dry or savanna. This reflects a dynamic climate regime, implying significant weather changes frequently. From a temperature gradient between 24°C (75.2°F) and 29.7°C (85.5°F), around the year, Sandy Bay experiences a temperate climate with increased temperatures during the summer months. The average sea temperatures fluctuate between 26.9°C (80.4°F) to 29.8°C (85.6°F) throughout the year, providing a pleasant warmth throughout all seasons.Rainfall in Sandy Bay varies throughout the year, showing a clear wet and dry pattern. The highest rainfall occurs from May to September, peaking significantly in May and September with 90mm (3.54") and 88mm (3.46"), respectively. Conversely, months from December to March receive comparably lesser rainfall, with the lowest being 19mm (0.75") in February. Overall, Sandy Bay exhibits a relatively high rate of humidity throughout the year, hovering consistently around the 77% mark. The wind speed is moderate, with an average annual value of approximately 16km/h (9.9mph).
There's a general trend of increased daylight from January to June marking the progression towards summer, peaking at 13.2 hours in June, but begins to decline from July onward, with December recording the shortest daylight hours of 11 hours. The sunshine hours follow a similar pattern, peaking between June and August with over 11 hours, providing an ample amount of sunlight for outdoor activities.
The best time to visit Sandy Bay
Owing to the tropical climate, the best time to visit Sandy Bay in Jamaica would be during the dry months of December to March. The rainfall is significantly lower during these months, with February recording the lowest rainfall of 19mm (0.75"). The temperatures also are pleasingly warm during these months, with highs of approximately 27°C (80.6°F). The sea temperatures remain consistently warm throughout, making it a perfect time for aquatic activities like swimming and snorkeling.The worst time to visit Sandy Bay
The months between May and September, also known as the wet season, can be considered less suitable for a visit. During these months, Sandy Bay experiences its highest rainfall levels, peaking at 90mm (3.54") in May. Therefore, outdoor activities might be disrupted due to weather conditions, although the temperatures remain reasonably high, ranging from 28.6°C (83.5°F) to 29.7°C (85.5°F).Spring weather in Sandy Bay
Spring weather in Sandy Bay, from March through May, witnesses a gradual increase in rainfall, with May receiving the most substantial rainfall of 90mm (3.54"). Temperatures during this period rise to a peak of around 28.6°C (83.5°F) in May, and the sea temperatures also climb to a comfortable 28.3°C (82.9°F), offering pleasant conditions for swimming and diving. The period sees a gradual increase in daylight hours, reaching a maximum of 13 hours in May.Summer weather in Sandy Bay
The summer months, from June to August, are the hottest in Sandy Bay. The temperature reaches a seasonal high of up to 29.7°C (85.5°F) in August, while the sea temperature climbs to its peak at 29.8°C (85.6°F) in August, providing excellent swimming conditions. The region experiences fluctuating rainfall between June and August, with July receiving comparatively less rainfall of 61mm (2.4").Autumn weather in Sandy Bay
The Autumn period, comprising September to November, experiences a decline in temperatures, falling from the summer high of 29.5°C (85.1°F) in September to around 28°C (82.4°F) in November. Rainfall remains significantly high during this period, peaking at 89mm (3.5") in October, making this a substantially wet season. The sea temperature remains warm, ranging from 29.8°C (85.6°F) to 28.9°C (84°F) during the period.Winter weather in Sandy Bay
Winter weather in Sandy Bay, from December to February, is characterized by cooler temperatures and lower rainfall, with temperatures ranging from 26.8°C (80.2°F) to 27.5°C (81.5°F), and rainfall dropping to as low as 19mm (0.75") in February. The sea temperature also dips to a pleasant 26.9°C (80.4°F) to 27.2°C (81°F), making it ideal for water activities. Despite being the winter season, Sandy Bay still enjoys a decent amount of daylight and sunshine hours, ranging from 11 to 11.6 hours and 6.6 to 7.1 hours, respectively.Weather in January
January in Sandy Bay, Jamaica, typically sees a moderate start to the year. The weather is characterized by average humidity and cooler nights compared to the annual norm. Noticeably, the highest wind gust speed reaches up to 26.5km/h (16.5mph) during this month. Weather in January »Weather in February
While February continues in the same vein as January, it has slightly reduced precipitation and wind speeds. The noticeable characteristics consist of constant visibility and UV index numbers across the month. The significant value comes with the second-highest average wind speed, peaking at 18.4km/h (11.4mph). Weather in February »Weather in March
Weather changes in March are subtle, with a slight increase in both temperature and daylight hours. Sandy Bay benefits from a stable climate throughout the year. The wind power in this time decreases to an average of 17.8km/h (11.1mph), making this period less attractive to wind-sport enthusiasts. Weather in March »Weather in April
April weather visibly marks the transition from drier to wetter conditions in Sandy Bay. Notably reaching 50mm (1.97"), rainfall events begin to gear up in expectance of the wet season. The increase in temperature is balanced by a lesser drop in wind speeds, ensuring thermal comfort for outdoor activities. Weather in April »Weather in May
May, known for the onset of the wet season in Sandy Bay, has the highest rainfall total of 90mm (3.54"). Cities' thermal conditions remain balmy with the nighttime temperatures touching the yearly median. Increased sea temperature makes it a perfect time for water-related activities despite the wet conditions. Weather in May »Weather in June
Comparative to May, June exhibits a minor dip in the rainfall and an increase in the overall cloud cover. The significant change is the hike in sea temperature, reaching close to the yearly heating peak. Steady, comfortable winds fluxing from the sea augment the coastal charm. Weather in June »Weather in July
July in Sandy Bay maintains a steady weather pattern dominant in June. Though rainfall and cloud cover levels taper off, the city experiences a maximum daily high temperature of 29.5°C (85.1°F). A steady increase in humidity makes the temperature feel warmer than it is, requiring lightweight attire. Weather in July »Weather in August
August is the warmest month in Sandy Bay, featuring the highest temperature range from 26.8°C (80.2°F) to 29.7°C (85.5°F). Sandy Bay becomes a hotspot for those who are fond of a hot and humid climate. Ample sunny hours combined with balmy wind conditions cater a genuine tropical summer feel. Weather in August »Weather in September
September at Sandy Bay experiences a slight drop in temperature and an increase in rainfall levels. Consequently, the climate remains chiefly consistent with the preceding summer months. The sea temperature reaches the annual peak, offering an additional allure for beachgoers. Weather in September »Weather in October
As October arrives, Sandy Bay witnesses a noticeable decline in the number of sunny days and a dip in sea temperature. A rise in rainfall events and cloud cover levels makes it the least sunny month of the year. October defers from September in featuring lower daylight hours, indicating a transition towards winter. Weather in October »Weather in November
Weather in November at Sandy Bay regulates with a steady decline in temperature and rainfall levels. Uniquely, wind speeds peak during this period, contributing to a comfortable atmosphere. Daily high temperatures spiral down to 28°C (82.4°F) while nighttime temperatures maintain closeness to the annual mean. Weather in November »Weather in December
December in Sandy Bay brings in the year-end with notably cooler nights and the second-lowest rainfall totals of 28mm (1.1"). The wind gust speed reaches its maximum, causing heavy sways and surf waves over the sea. Though the high temperature hovers around the year's average, a perceptible drop in night temperatures implies oncoming winter conditions. Weather in December »Updated: Jan 31, 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
Sandy Bay experiences its lowest temperatures in January, with an average peak of 26.8°C (80.2°F) and a low of 24°C (75.2°F).
In Sandy Bay, Jamaica, during the entire year, the rain falls for 177.2 days and collects up to 687mm (27.05") of precipitation.
January and February, with an average sea temperature of 26.9°C (80.4°F), are months with the coldest seawater in Sandy Bay.
The months with the highest UV index in Sandy Bay, Jamaica, are January, March through December, with an average maximum UV index of 7.
The month with the least rainfall is February, when the rain falls for 10.6 days and typically collects 19mm (0.75") of precipitation.
The month with the lowest UV index in Sandy Bay, Jamaica, is February, with an average maximum UV index of 6.
March is the least humid month, with an average relative humidity of 75%.
May is the month with the most rainfall in Sandy Bay. Rain falls for 18 days and accumulates 90mm (3.54") of precipitation.
June is the most humid month in Sandy Bay, Jamaica, with an average relative humidity of 78%.
June has the longest days of the year in Sandy Bay, with an average of 13h and 12min of daylight.
The months with the most sunshine in Sandy Bay are July and August, with an average of 11.5h of sunshine.
Sandy Bay's warmest weather arrives in August, when temperatures average a high of 29.7°C (85.5°F) and a low of 26.8°C (80.2°F).
August and September, with an average sea temperature of 29.8°C (85.6°F), are months with the warmest seawater in Sandy Bay.
November and December, with an average of 6.6h of sunshine, are months with the least sunshine.
With an average of 11h and 0min of daylight, December has the shortest days of the year in Sandy Bay, Jamaica.
Sandy Bay does not utilize Daylight Saving Time (DST). EST timezone is used throughout the entire year.
Average temperature
Sandy Bay, Jamaica
The warmest month (with the highest average high temperature) is August (29.7°C).
The month with the lowest average high temperature is January (26.8°C).
The months with the highest average low temperature are July and August (26.8°C).
The coldest month (with the lowest average low temperature) is February (23.8°C).
Average pressure
Sandy Bay, Jamaica
- Average pressure in January:
1015.6mbar - Average pressure in February:
1015.4mbar - Average pressure in March:
1015.2mbar - Average pressure in April:
1014.1mbar - Average pressure in May:
1013.5mbar - Average pressure in June:
1014mbar
- Average pressure in July:
1014.5mbar - Average pressure in August:
1013.3mbar - Average pressure in September:
1012.2mbar - Average pressure in October:
1011.4mbar - Average pressure in November:
1012.5mbar - Average pressure in December:
1014.5mbar
The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is October (1011.4mbar).
Average wind speed
Sandy Bay, Jamaica
- Average wind speed in January:
18.8km/h - Average wind speed in February:
18.4km/h - Average wind speed in March:
17.8km/h - Average wind speed in April:
14.7km/h - Average wind speed in May:
14.3km/h - Average wind speed in June:
16.1km/h
- Average wind speed in July:
17.1km/h - Average wind speed in August:
15.3km/h - Average wind speed in September:
13km/h - Average wind speed in October:
13.7km/h - Average wind speed in November:
18.2km/h - Average wind speed in December:
20km/h
The windiest month (with the highest average wind speed) is December (20km/h).
The calmest month (with the lowest average wind speed) is September (13km/h).
Average humidity
Sandy Bay, Jamaica
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is March (75%).
Average rainfall
Sandy Bay, Jamaica
The wettest month (with the highest rainfall) is May (90mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days
Sandy Bay, Jamaica
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
10.6 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
18.4 days - Average rainfall days in October:
17.1 days - Average rainfall days in November:
13.2 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is September (18.4 days).
The month with the least rainy days is February (10.6 days).
Average sea temperature
Sandy Bay, Jamaica
The best months for swimming (with the highest average sea temperature) are August and September (29.8°C).
The coldest months (with the lowest average sea temperature) are January and February (26.9°C).
Average daylight / Average sunshine
Sandy Bay, Jamaica
- Average daylight in January:
11h and 12min - Average daylight in February:
11h and 36min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 0min - Average daylight in June:
13h and 12min
- Average daylight in July:
13h and 6min - Average daylight in August:
12h and 42min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 18min - Average daylight in December:
11h and 0min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January:
7h and 6min - Average sunshine in February:
8h and 36min - Average sunshine in March:
8h and 30min - Average sunshine in April:
10h and 36min - Average sunshine in May:
10h and 48min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
11h and 30min - Average sunshine in August:
11h and 30min - Average sunshine in September:
10h and 18min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 36min - Average sunshine in December:
6h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 6h and 36min).
Average sunshine days
Sandy Bay, Jamaica
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
9.8 days - Average sunshine days in October:
11.9 days - Average sunshine days in November:
15.3 days - Average sunshine days in December:
18 days
The month with the most sunshine days is December (18 days).
The month with the least sunshine days is September (9.8 days).
Average UV index
Sandy Bay, Jamaica
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).
Average cloud cover
Sandy Bay, Jamaica
The months with the most cloud cover are January, May and November (Cloud cover 28).
The month with the least cloud cover is July (Cloud cover 21).
Average visibility
Sandy Bay, Jamaica
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).
