Climate and monthly weather forecastGrand Bois, Mauritius
Climate and monthly weather forecast
The climate of Grand Bois
Situated in the heart of Mauritius, Grand Bois exhibits a Tropical monsoon climate or 'Am' as per the Köppen climate classification. The tropical nature of the region is clearly marked by sustained high temperatures and significant levels of humidity throughout the year. The climate data reveals that monthly average temperatures do not differ substantially, oscillating between a high of 28.2°C (82.8°F) and a low of 21.3°C (70.3°F).Observed humidity levels in Grand Bois indicate saturation, with relative humidity hovering from 74% to 79%. This tends towards a perpetually moist environment, unsurprising for a locale identified as a tropical monsoon climate. The data informs of the presence of clouds with percentages ranging from 38% to 45%, likely contributing to the elevated humidity.
Rainfall sustains the tropical nature of Grand Bois, peaking at 105mm (4.13") in February and tapering down to a minimum of 14mm (0.55") in September. Despite fluctuations, showers occur in every month, marking a uniquely spread rainfall pattern without any dry periods. This persistent rain combined with the prevalent humidity may also limit sunshine hours and visibility, although the data suggests a sufficient daily sunlight period ranging from 6.1 to 10.3 hours.
Wind speed provides another facet to the climate profile of Grand Bois. With an average speed varying between 17.7km/h (11mph) to 24.3km/h (15.1mph), the area experiences moderate to strong winds, potentially offering a refreshing contrast to the humid and moist conditions.
The best time to visit Grand Bois
Visitors drawn to warmth and sunshine may find the period from September to November the most suitable for a trip to Grand Bois. During these months, rainfall is at its annual minimum, averaging from 14mm (0.55") to 26mm (1.02"), while sunshine hours extend to between 9.1 to 10.3 hours a day. Moreover, daytime temperatures remain comfortably warm, hovering around 23.2°C (73.8°F) to 25.8°C (78.4°F), making these months an ideal choice for outdoor activities and exploration.The worst time to visit Grand Bois
The combination of high rainfall and intense humidity make the months of January and February challenging for visitors. Precipitation peaks during these months, reaching up to 101mm (3.98") to 105mm (4.13"), while the relative humidity averages 78% to 79%. This could lead to considerable discomfort, especially for those unaccustomed to such moist and humid conditions. Reduced sunshine hours, on average 8.6h to 9.7h per day, may further limit outdoor activities and sightseeing.Spring weather in Grand Bois
Toward the end of a humid summer, spring weather in Grand Bois from March to May sees a slight drop in temperatures, with average lows falling to 23.8°C (74.8°F) and highs reaching up to 27.9°C (82.2°F). Rainfall begins its downward trend, dropping to an annual low of 28mm (1.1") in May. The relative humidity begins a slow decline as well, averaging between 76% to 78%. The reduced rainfall and receding humidity make these months increasingly pleasant for outdoor explorations.Summer weather in Grand Bois
The summer months from December through February in Grand Bois are characterized by high heat and elevated levels of humidity. Temperatures are at their peak, with averages from 25.1°C (77.2°F) to 28.2°C (82.8°F), while relative humidity reaches yearly high values of 78% to 79%. Junior summer brings frequent showers, with February witnessing the highest rainfall at approximately 105mm (4.13"). Despite these tropical conditions, the sunlight hours remain relatively stable, averaging between 10.2 to 10.3 hours per day.Autumn weather in Grand Bois
Autumn, spanning from June to August, brings a cooler reprieve from the intense heat of the summer. Temperatures moderate to a comfortable range of 21.3°C (70.3°F) to 23.2°C (73.8°F), while the humidity also decreases slightly to 74%. Rainfall continues to dwindle, averaging between 26mm (1.02") and 31mm (1.22") per month. An increase in the wind speed to a maximum of 24.3km/h (15.1mph) may be experienced during these months, providing a refreshing balance to the diminishing humidity.Winter weather in Grand Bois
The winter season from September through November in Grand Bois offers the most serene weather conditions. While temperatures lower to a minimum of 21.6°C (70.9°F), the maximum temperatures remain warm at around 25.8°C (78.4°F). Rainfall reaches its annual low in September with only 14mm (0.55"), and the relative humidity drops to 74%. With sunshine hours peaking at 10.3 hours per day in October and wind speeds decreasing, winter in Grand Bois offers conditions conducive to activities and excursions in the natural landscapes of the region.Weather in January
Considering the weather conditions that prevail in Grand Bois, Mauritius, January is usually characterized by relatively high temperatures with a mix of rainfall and sunshine. The highest temperatures range from 27.9°C (82.2°F) to 25.8°C (78.4°F) with significant rainfall of 101mm (3.98") occurring over 20 days. Weather in January »Weather in February
Moving into February, the weather in Grand Bois, Mauritius continues to present tropical conditions. High temperatures rise slightly to 28.2°C (82.8°F), while the lowest remain consistent at approximately 26°C (78.8°F). The rainfall decreases slightly to 105mm (4.13") over 21.6 days. Weather in February »Weather in March
March ushers in a subtle change in the weather patterns of Grand Bois, Mauritius. The most notable feature of the month's weather is a dip in rainfall levels, with precipitation dropping to 72mm (2.83") spread over 21.8 days. Temperatures remain stable, hinting at the transition to the cooler months ahead. Weather in March »Weather in April
April in Grand Bois, Mauritius sees a significant dip in the rainfall, marking a transition to the drier months of the year. Compared to March, the average rainfall lessens to around 44mm (1.73"), occurring over 17.7 days. A slight decrease in temperature gives rise to pleasant weather conditions. Weather in April »Weather in May
May stands as a month of transition in Grand Bois, Mauritius, between the warmer and cooler months of the year. The most defining aspect of May is the further decrease in rainfall to 28mm (1.1") over 15.3 days. This decrease sets the stage for the dry period that characterizes the forthcoming months. Weather in May »Weather in June
In June, the weather in Grand Bois, Mauritius offers a comfortable climate as the island settles into the cooler season. A slight increase in rainfall to 31mm (1.22") over 15.7 days characterizes the month's weather. The temperature, humidity, and daylight continue to decrease into the mild winter, yet remain comfortable and enjoyable. Weather in June »Weather in July
In July, the weather in Grand Bois, Mauritius continues to cool down with the lowest temperatures falling to 21.5°C (70.7°F). Despite this dip, the island experiences a consistent rainfall pattern of 27mm (1.06") over 19.3 days. Weather in July »Weather in August
August weather in Grand Bois, Mauritius is marked by a slight decrease in temperature and rainfall. The rainfall levels remain relatively low with an average of 26mm (1.02") over 16.8 days. Conditions are pretty stable with only minor variations in wind speed, pressure, and humidity. Weather in August »Weather in September
As September rolls in, so does a notable shift in Grand Bois, Mauritius weather. This month sees a further decrease in rainfall to just 14mm (0.55") over 12.8 days. The temperatures begin to rise indicating the gradual transition to the warmer months. Weather in September »Weather in October
October in Grand Bois, Mauritius welcomes warmer weather as temperatures begin to increase. A slight rise in rainfall to 17mm (0.67") over 11.5 days offers relief from the rising heat. The increase in temperature is complemented by continued sunny days, which now extend due to increased daylight hours. Weather in October »Weather in November
November brings with it definitive signs of the warmer weather in Grand Bois, Mauritius. The rainfall takes a slight upward turn with 26mm (1.02") spread across 11.2 days. This rise is offset by an increase in sunshine and daylight hours, illuminating the island's beauty. Weather in November »Weather in December
In December, the weather in Grand Bois, Mauritius is characterized by a further increase in temperature and rainfall. Marking the end of the year, it sees an increased rainfall at 59mm (2.32") over 17.1 days. The advent of the warm season is palpable, as temperature, humidity, and daylight hours increase. Weather in December »Updated: Feb 7, 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
In Grand Bois, Mauritius, during the entire year, the rain falls for 200.8 days and collects up to 550mm (21.65") of precipitation.
The months with the highest UV index in Grand Bois are January through April and December, with an average maximum UV index of 7.
In Grand Bois, Mauritius, the average temperatures in February are the highest, with a peak at 28.2°C (82.8°F) and a low of 26°C (78.8°F).
The most humid month in Grand Bois is February, with an average relative humidity of 79%.
The month with the most rainfall is February, when the rain falls for 21.6 days and typically aggregates up to 105mm (4.13") of precipitation.
The months with the lowest UV index in Grand Bois, Mauritius, are May through November, with an average maximum UV index of 6.
With an average of 10h and 54min of daylight, June has the shortest days of the year in Grand Bois.
The months with the lowest humidity are July through September, with an average relative humidity of 74%.
The month with the least sunshine is July, with an average of 6.1h of sunshine.
August proves to be the coldest month, recording an average maximum temperature of 22.9°C (73.2°F) and a minimum temperature of 21.3°C (70.3°F).
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 14mm (0.55") of precipitation.
With an average of 10.3h of sunshine, October has the most sunshine of the year.
With an average of 13h and 18min of daylight, December has the longest days of the year in Grand Bois, Mauritius.
Grand Bois does not observe Daylight Saving Time (DST). +04 timezone is used throughout the entire year.
Average temperature
Grand Bois, Mauritius
The warmest month (with the highest average high temperature) is February (28.2°C).
The month with the lowest average high temperature is August (22.9°C).
The month with the highest average low temperature is February (26°C).
The coldest month (with the lowest average low temperature) is August (21.3°C).
Average pressure
Grand Bois, Mauritius
- Average pressure in January:
1011.5mbar - Average pressure in February:
1011.2mbar - Average pressure in March:
1012.5mbar - Average pressure in April:
1014.6mbar - Average pressure in May:
1017.4mbar - Average pressure in June:
1019.5mbar
- Average pressure in July:
1020.4mbar - Average pressure in August:
1021.2mbar - Average pressure in September:
1020.6mbar - Average pressure in October:
1018.2mbar - Average pressure in November:
1015.7mbar - Average pressure in December:
1013.4mbar
The month with the highest atmospheric pressure is August (1021.2mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).
Average wind speed
Grand Bois, Mauritius
- Average wind speed in January:
18.8km/h - Average wind speed in February:
18.2km/h - Average wind speed in March:
19.6km/h - Average wind speed in April:
20.8km/h - Average wind speed in May:
20.4km/h - Average wind speed in June:
24.1km/h
- Average wind speed in July:
24.2km/h - Average wind speed in August:
24.3km/h - Average wind speed in September:
22.7km/h - Average wind speed in October:
20.2km/h - Average wind speed in November:
17.7km/h - Average wind speed in December:
18km/h
The windiest month (with the highest average wind speed) is August (24.3km/h).
The calmest month (with the lowest average wind speed) is November (17.7km/h).
Average humidity
Grand Bois, Mauritius
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall
Grand Bois, Mauritius
- Average rainfall in January:
101mm - Average rainfall in February:
105mm - Average rainfall in March:
72mm - Average rainfall in April:
44mm - Average rainfall in May:
28mm - Average rainfall in June:
31mm
The wettest month (with the highest rainfall) is February (105mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days
Grand Bois, Mauritius
- Average rainfall days in January:
20 days - Average rainfall days in February:
21.6 days - Average rainfall days in March:
21.8 days - Average rainfall days in April:
17.7 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
19.3 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
17.1 days
The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is November (11.2 days).
Average daylight / Average sunshine
Grand Bois, Mauritius
- Average daylight in January:
13h and 12min - Average daylight in February:
12h and 48min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 36min - Average daylight in May:
11h and 12min - Average daylight in June:
10h and 54min
- Average daylight in July:
11h and 0min - Average daylight in August:
11h and 24min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 36min - Average daylight in November:
13h and 6min - Average daylight in December:
13h and 18min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in January:
9h and 42min - Average sunshine in February:
8h and 36min - Average sunshine in March:
7h and 54min - Average sunshine in April:
7h and 0min - Average sunshine in May:
6h and 24min - Average sunshine in June:
6h and 12min
- Average sunshine in July:
6h and 6min - Average sunshine in August:
6h and 12min - Average sunshine in September:
9h and 6min - Average sunshine in October:
10h and 18min - Average sunshine in November:
10h and 12min - Average sunshine in December:
10h and 12min
The month with the most sunshine is October (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).
Average sunshine days
Grand Bois, Mauritius
- Average sunshine days in January:
7.2 days - Average sunshine days in February:
4 days - Average sunshine days in March:
6.4 days - Average sunshine days in April:
9.4 days - Average sunshine days in May:
11.1 days - Average sunshine days in June:
7.2 days
- Average sunshine days in July:
7 days - Average sunshine days in August:
8.4 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
12.4 days - Average sunshine days in November:
14.2 days - Average sunshine days in December:
10.1 days
The month with the most sunshine days is November (14.2 days).
The month with the least sunshine days is February (4 days).
Average UV index
Grand Bois, Mauritius
The months with the highest UV index are January, February, March, April and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 6).
Average cloud cover
Grand Bois, Mauritius
The months with the most cloud cover are March and April (Cloud cover 45).
The months with the least cloud cover are September and October (Cloud cover 38).
Average visibility
Grand Bois, Mauritius
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).
