Climate Insights for Richelieu

Black River, Mauritius

Hottest
February
28°C peak83°F peak
Coldest
August
20°C low67°F low
Wettest
January
196 mm rain7.7 in rain
Best to Visit
May, June, July
Mild temps & low rain

Climate Overview

The climate in Richelieu is warm and mild. The average annual temperature is 24°C and approximately 1,027 mm of precipitation falls per year. January is the wettest month, receiving around 196 mm of rainfall. Richelieu is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: February, March, January. The coldest months are August, July, September, when temperatures can drop to 20°C.The climate in Richelieu is warm and mild. The average annual temperature is 75°F and approximately 40.4 in of precipitation falls per year. January is the wettest month, receiving around 7.7 in of rainfall. Richelieu is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: February, March, January. The coldest months are August, July, September, when temperatures can drop to 67°F.

Temperature

0°5°10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 28°Average: 26°Min: 24°FebMax: 28°Average: 26°Min: 25°MarMax: 28°Average: 26°Min: 25°AprMax: 27°Average: 25°Min: 24°MayMax: 26°Average: 24°Min: 22°JunMax: 24°Average: 22°Min: 21°JulMax: 23°Average: 21°Min: 20°AugMax: 23°Average: 21°Min: 20°SepMax: 24°Average: 22°Min: 20°OctMax: 25°Average: 23°Min: 21°NovMax: 26°Average: 24°Min: 22°DecMax: 28°Average: 25°Min: 24°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 83°FAverage: 79°FMin: 76°FFebMax: 83°FAverage: 79°FMin: 76°FMarMax: 83°FAverage: 79°FMin: 76°FAprMax: 81°FAverage: 78°FMin: 75°FMayMax: 78°FAverage: 75°FMin: 72°FJunMax: 75°FAverage: 72°FMin: 69°FJulMax: 74°FAverage: 70°FMin: 68°FAugMax: 74°FAverage: 70°FMin: 67°FSepMax: 75°FAverage: 71°FMin: 68°FOctMax: 77°FAverage: 73°FMin: 70°FNovMax: 80°FAverage: 76°FMin: 72°FDecMax: 82°FAverage: 78°FMin: 74°F
Max
Average
Min

Richelieu has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is February, when average highs reach 28°C and the mean temperature sits around 26°C. August is the coolest month, with minimum temperatures around 20°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.Richelieu has relatively stable temperatures year-round, staying within a 16°F range. The warmest month is February, when average highs reach 83°F and the mean temperature sits around 79°F. August is the coolest month, with minimum temperatures around 67°F and an average of 70°F. Daily temperature variation is modest, with an average difference of 7°F between highs and lows.

Precipitation

0mm50mm100mm150mm200mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 196mmFebPrecipitation: 177mmMarPrecipitation: 159mmAprPrecipitation: 107mmMayPrecipitation: 50mmJunPrecipitation: 38mmJulPrecipitation: 35mmAugPrecipitation: 30mmSepPrecipitation: 24mmOctPrecipitation: 35mmNovPrecipitation: 64mmDecPrecipitation: 113mm
Precipitation
0in2in4in6in8inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 7.7inFebPrecipitation: 7inMarPrecipitation: 6.3inAprPrecipitation: 4.2inMayPrecipitation: 2inJunPrecipitation: 1.5inJulPrecipitation: 1.4inAugPrecipitation: 1.2inSepPrecipitation: 0.9inOctPrecipitation: 1.4inNovPrecipitation: 2.5inDecPrecipitation: 4.5in
Precipitation

Richelieu is a moderately rainy area, receiving approximately 1,027 mm of precipitation annually, which averages out to around 86 mm per month. The wettest month is January, averaging 196 mm of rainfall. February and March also tend to see above-average precipitation. The driest month is September, with just 24 mm. That's 172 mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Richelieu is a moderately rainy area, receiving approximately 40.4 in of precipitation annually, which averages out to around 3.4 in per month. The wettest month is January, averaging 7.7 in of rainfall. February and March also tend to see above-average precipitation. The driest month is September, with just 0.9 in. That's 6.8 in less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h5km/h10km/h15km/h20km/h25km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 17km/hFebWind Speed: 17km/hMarWind Speed: 16km/hAprWind Speed: 18km/hMayWind Speed: 19km/hJunWind Speed: 22km/hJulWind Speed: 22km/hAugWind Speed: 21km/hSepWind Speed: 21km/hOctWind Speed: 18km/hNovWind Speed: 16km/hDecWind Speed: 17km/h
Wind Speed
0mph5mph10mph15mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 11mphFebWind Speed: 11mphMarWind Speed: 10mphAprWind Speed: 11mphMayWind Speed: 12mphJunWind Speed: 14mphJulWind Speed: 14mphAugWind Speed: 13mphSepWind Speed: 13mphOctWind Speed: 11mphNovWind Speed: 10mphDecWind Speed: 11mph
Wind Speed

Richelieu is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in November, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 22km/h in winter, 18km/h in spring, 17km/h in summer, 18km/h in autumn.Richelieu is moderately windy, with an average annual wind speed of 12mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is July, averaging 14mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in November, with average winds dropping to 10mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14mph in winter, 11mph in spring, 11mph in summer, 11mph in autumn.

Best Time to Visit

Jan26°79°F
Feb26°79°F
Mar26°79°F
Apr25°78°F
May24°75°F
Jun22°72°F
Jul21°70°F
Aug21°70°F
Sep22°71°F
Oct23°73°F
Nov24°76°F
Dec25°78°F

The best time to visit Richelieu is during May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 39 mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 28°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Richelieu is during May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 72°F with modest rainfall averaging 1.5 in per month. By contrast, February can be uncomfortably hot with temperatures reaching 83°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Richelieu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Richelieu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
24 °C76 °F
28 °C83 °F
17 km/h11 mph
196 mm7.7 in
0 cm0 in
Feb
25 °C76 °F
28 °C83 °F
17 km/h11 mph
177 mm7 in
0 cm0 in
Mar
25 °C76 °F
28 °C83 °F
16 km/h10 mph
159 mm6.3 in
0 cm0 in
Apr
24 °C75 °F
27 °C81 °F
18 km/h11 mph
107 mm4.2 in
0 cm0 in
May
22 °C72 °F
26 °C78 °F
19 km/h12 mph
50 mm2 in
0 cm0 in
Jun
21 °C69 °F
24 °C75 °F
22 km/h14 mph
38 mm1.5 in
0 cm0 in
Jul
20 °C68 °F
23 °C74 °F
22 km/h14 mph
35 mm1.4 in
0 cm0 in
Aug
20 °C67 °F
23 °C74 °F
21 km/h13 mph
30 mm1.2 in
0 cm0 in
Sep
20 °C68 °F
24 °C75 °F
21 km/h13 mph
24 mm0.9 in
0 cm0 in
OctCurrent
21 °C70 °F
25 °C77 °F
18 km/h11 mph
35 mm1.4 in
0 cm0 in
Nov
22 °C72 °F
26 °C80 °F
16 km/h10 mph
64 mm2.5 in
0 cm0 in
Dec
24 °C74 °F
28 °C82 °F
17 km/h11 mph
113 mm4.5 in
0 cm0 in