Climate and monthly weather forecastHarrismith, Barbados
Climate and monthly weather forecast
The climate of Harrismith
Situated in the appealing destination of Barbados, Harrismith is governed by a distinct Tropical monsoon climate, marked by the Köppen climate classification as 'Am'. This tropical atmosphere contributes to consistent temperatures and significant quantities of rainfall throughout the year.A characteristic feature of Harrismith's climate is its moderately high temperatures, which range from a minimum of 26°C (78.8°F) to 28.4°C (83.1°F) in daytime, decreasing somewhat lightly to 25.7°C (78.3°F) to 27.8°C (82°F) at night. This slight fluctuation creates an environment of perpetual warmth.
A close examination of rainfall data reveals a notable pattern. Rainfall not only varies significantly from month to month but also increases profoundly during the monsoon period. Presenting the most precipitous condition in August with 126mm (4.96") to the least in February with 13mm (0.51"), the months of June to November take the lead with an escalated pattern of rainfall. Conversely, the beginning and end months of a year in Harrismith record the lowest rainfall amounts.
A consistent relative humidity between 74% and 77%, coupled with a moderate wind speed that fluctuates between 19.2km/h (11.9mph) to 28.3km/h (17.6mph), further enhances the tropical experience. The tropical phenomena are further characterized by daylight hours that range from 11.4 to 12.9 hours and a sustaining UV index of 7 throughout the year.
The best time to visit Harrismith
Identifying the best time to visit Harrismith largely depends on the observer's preference for weather conditions. For those inclined to engage in outdoor activities and enjoy the tropical sunshine, the months between December to April are an ideal choice. During this period, the total number of rainfall days diminishes notably, with only 15 days in January and even fewer in February, dropping to 11.3 days. Furthermore, the area boasts the longest sunshine duration, reaching up to 9.9 hours per day in April. These months also record the lowest rainfall, ensuring fewer interruptions for various activities.The worst time to visit Harrismith
Contrastingly, the period from June through November can be challenging for visitors due to the escalated rainfall. These months mark the highest rainfall amounts, with the peak at 126mm (4.96") in August and simultaneously have the highest number of rainfall days which reaches 26.3 days in July. Therefore, those who are not fans of frequent rainy conditions and prefer outdoor tourist activities in dry conditions may find this period less appealing.Spring weather in Harrismith
Harrismith's spring season from March to May presents a perfect mix of moderate temperature and rainfall. Temperatures start from 26.1°C (79°F) in the corresponding nights and rise up to 28.3°C (82.9°F) during the day times in May. Rainfall follows a growing trend from 20mm (0.79") in March to 44mm (1.73") in May with the total rainfall days also increasing from 15.1 in March to 21.7 in May.Summer weather in Harrismith
In Harrismith, summer spans from June to August, bringing with it increased precipitation. This season defines warmth with maximum daytime temperatures hovering between 28.4°C (83.1°F) and 28.8°C (83.8°F) and minima ranging from 27.3°C (81.1°F) to 27.5°C (81.5°F) at night. The region experiences escalated rainfall, peaking at 126mm (4.96") in August, with an increasing number of rainfall days, reaching to a highest of 26.3 days in July.Autumn weather in Harrismith
Autumn, running from September to November, experiences a decrease in rainfall with figures declining from 106mm (4.17") in September to 76mm (2.99") in November. Daytime temperature during this period drops slightly, ranging from 29°C (84.2°F) in September to 28.2°C (82.8°F) in November, whereas nighttime temperatures vary minutely between 27.7°C (81.9°F) and 27.5°C (81.5°F).Winter weather in Harrismith
The winter season in Harrismith, from December to February, is marked by the lowest temperature and rainfall values. The precipitation lessens considerably to 17mm (0.67") in December and 13mm (0.51") in February, with rainfall days also descending significantly to 15 days in December and 11.3 days in February. Daytime temperature ranges between 27°C (80.6°F) to 27.6°C (81.7°F), while nighttime temperature fluctuates moderately from 26°C (78.8°F) to 26.5°C (79.7°F).Weather in January
January in Harrismith, Barbados, features a moderate climate with characteristic tropical characteristics. This month marks the start of the year with a moderate temperature range between 26°C (78.8°F) and 27°C (80.6°F). The coastal winds offer respite from the warmth, creating a refreshing atmosphere. Weather in January »Weather in February
February presents a continuity in the soothing tropical climate of Harrismith. A marginal reduction in both high and low temperatures from the proceeding month is observed. The balmy evenings and sunshine-filled days make it an ideal month for beach exploration and water sports. Weather in February »Weather in March
The climate of Harrismith sees minimal changes as it moves into March. The island continues to display its tropical beauty under the warmth of the sun amidst increased rainfall to 20mm (0.79"). Tourists often frequent the local markets and food joints, taking advantage of the pleasing weather. Weather in March »Weather in April
April sees growth in rainfall up to a hefty 31mm (1.22"), indicating the onset of the rainy season in Harrismith. Despite this, the temperatures remain nearly stable from the previous month, promoting a warm and inviting outdoor environment. Weather in April »Weather in May
May marks the transition of the season with an increase in rainfall to 44mm (1.73"), making it a relatively wet month. There is a slight increase in temperature, reaching up to 28.3°C (82.9°F) - this is the first significant rise in temperature for the year. Weather in May »Weather in June
In Harrismith, June kickstarts the summer, with temperatures soaring to a high of 28.4°C (83.1°F). The cloud cover increases to its highest of the year at 49%, indicating a shift in the weather pattern. Despite the increased rainfall, reaching up to 63mm (2.48"), outdoor activities are still quite enjoyable. Weather in June »Weather in July
The month of July records the highest rainfall of the year at 85mm (3.35") in Harrismith, signaling peak monsoon season. Concurrently, an increase in temperature is observed, reaching to an equal high temperature as in June. Outdoor activities might witness an occasional disruption due to unexpected rain showers. Weather in July »Weather in August
August holds the record for the highest temperature of the year in Harrismith, reaching up to 28.8°C (83.8°F). The decrease in cloud cover to 43%, combined with a higher pressure of 1013.3mb, lends to the warm weather condition. Weather in August »Weather in September
September in Harrismith sees a drop in temperature down to 29°C (84.2°F) after the peak in August. The rainfall also reduces significantly to 106mm (4.17"), indicating an ending monsoon. The wind speed further diminishes, refraining from disrupting the calm serenity of the month. Weather in September »Weather in October
Weather conditions in October induce a shift from the typically hot conditions with the temperature dropping to 28.9°C (84°F) in Harrismith. The rainfall maintains its decrease during this period, dropping to 98mm (3.86"). A lower wind speed of 21.5km/h (13.4mph) imparts a calmness to the atmosphere. Weather in October »Weather in November
November indicates the onset of the dry season return in Harrismith with a reduction in rainfall to 76mm (2.99"). Despite the transition, the temperature continues to decline, maintaining a steady curve throughout the month. The slightly increased wind speed makes the Town’s ambiance pleasant. Weather in November »Weather in December
December marks the end of the year in Harrismith, with a further decline in temperature down to 27.6°C (81.7°F). The rainfall drops drastically to 30mm (1.18"), making it one of the driest months of the year. The weather reels back to conditions observed at the beginning of the year, closing the circle. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Harrismith, Barbados
The warmest month (with the highest average high temperature) is September (29°C).
The month with the lowest average high temperature is February (26.8°C).
The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).
Average pressure
Harrismith, Barbados
- Average pressure in January:
1014.3mbar - Average pressure in February:
1014.3mbar - Average pressure in March:
1014.2mbar - Average pressure in April:
1014mbar - Average pressure in May:
1014.2mbar - Average pressure in June:
1014.8mbar
- Average pressure in July:
1014.4mbar - Average pressure in August:
1013.3mbar - Average pressure in September:
1012.4mbar - Average pressure in October:
1011.5mbar - Average pressure in November:
1011.2mbar - Average pressure in December:
1013mbar
The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed
Harrismith, Barbados
- Average wind speed in January:
28.3km/h - Average wind speed in February:
28.3km/h - Average wind speed in March:
25.6km/h - Average wind speed in April:
24.9km/h - Average wind speed in May:
25.8km/h - Average wind speed in June:
28.1km/h
- Average wind speed in July:
26.4km/h - Average wind speed in August:
22.2km/h - Average wind speed in September:
19.2km/h - Average wind speed in October:
21.5km/h - Average wind speed in November:
23.8km/h - Average wind speed in December:
26.9km/h
The windiest months (with the highest average wind speed) are January and February (28.3km/h).
The calmest month (with the lowest average wind speed) is September (19.2km/h).
Average humidity
Harrismith, Barbados
The months with the highest relative humidity are June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).
Average rainfall
Harrismith, Barbados
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days
Harrismith, Barbados
- Average rainfall days in January:
15 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
21.7 days - Average rainfall days in June:
22.9 days
- Average rainfall days in July:
26.3 days - Average rainfall days in August:
24.9 days - Average rainfall days in September:
22.5 days - Average rainfall days in October:
21.9 days - Average rainfall days in November:
20.8 days - Average rainfall days in December:
16.2 days
The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (11.3 days).
Average daylight / Average sunshine
Harrismith, Barbados
- Average daylight in January:
11h and 30min - Average daylight in February:
11h and 42min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 42min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 48min - Average daylight in August:
12h and 30min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 48min - Average daylight in November:
11h and 30min - Average daylight in December:
11h and 24min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in January:
6h and 48min - Average sunshine in February:
8h and 18min - Average sunshine in March:
8h and 54min - Average sunshine in April:
9h and 54min - Average sunshine in May:
9h and 42min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 12min - Average sunshine in October:
8h and 18min - Average sunshine in November:
7h and 36min - Average sunshine in December:
6h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days
Harrismith, Barbados
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
12 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
4 days - Average sunshine days in June:
1.8 days
- Average sunshine days in July:
1.3 days - Average sunshine days in August:
2.7 days - Average sunshine days in September:
5.4 days - Average sunshine days in October:
6.7 days - Average sunshine days in November:
7.9 days - Average sunshine days in December:
12.3 days
The month with the most sunshine days is February (14.3 days).
The month with the least sunshine days is July (1.3 days).
Average UV index
Harrismith, Barbados
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
Harrismith, Barbados
The month with the most cloud cover is June (Cloud cover 49).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility
Harrismith, Barbados
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).





