Climate Insights for Merweville

South Africa

Hottest
January
35°C peak94°F peak
Coldest
July
4°C low40°F low
Wettest
March
26 mm rain1 in rain
Best to Visit
March, April, May
Mild temps & low rain

Climate Overview

The climate in Merweville is warm and mild. The average annual temperature is 19°C and approximately 157 mm of precipitation falls per year. March is the wettest month, receiving around 26 mm of rainfall. Merweville 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: January, February, December. The coldest months are July, June, August, when temperatures can drop to 4°C.The climate in Merweville is warm and mild. The average annual temperature is 66°F and approximately 6.2 in of precipitation falls per year. March is the wettest month, receiving around 1 in of rainfall. Merweville 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: January, February, December. The coldest months are July, June, August, when temperatures can drop to 40°F.

Temperature

0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 35°Average: 26°Min: 18°FebMax: 34°Average: 25°Min: 18°MarMax: 31°Average: 23°Min: 16°AprMax: 27°Average: 19°Min: 12°MayMax: 24°Average: 16°Min: 8°JunMax: 20°Average: 13°Min: 6°JulMax: 20°Average: 12°Min: 4°AugMax: 22°Average: 13°Min: 6°SepMax: 25°Average: 17°Min: 9°OctMax: 28°Average: 20°Min: 12°NovMax: 31°Average: 22°Min: 14°DecMax: 33°Average: 24°Min: 16°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 94°FAverage: 78°FMin: 64°FFebMax: 93°FAverage: 77°FMin: 64°FMarMax: 88°FAverage: 73°FMin: 61°FAprMax: 80°FAverage: 66°FMin: 54°FMayMax: 75°FAverage: 60°FMin: 47°FJunMax: 68°FAverage: 55°FMin: 42°FJulMax: 67°FAverage: 53°FMin: 40°FAugMax: 71°FAverage: 56°FMin: 42°FSepMax: 76°FAverage: 62°FMin: 48°FOctMax: 83°FAverage: 68°FMin: 54°FNovMax: 87°FAverage: 72°FMin: 57°FDecMax: 91°FAverage: 75°FMin: 61°F
Max
Average
Min

Temperatures in Merweville vary considerably across the year, with a 31°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 35°C and the mean temperature sits around 26°C. July is the coolest month, with minimum temperatures around 4°C and an average of 12°C. The average daily temperature swing is 16°C, meaning significant differences between daytime and nighttime temperatures. The sharpest temperature change occurs between March and April, with a 4°C shift in average temperatures.Temperatures in Merweville vary considerably across the year, with a 54°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 94°F and the mean temperature sits around 78°F. July is the coolest month, with minimum temperatures around 40°F and an average of 53°F. The average daily temperature swing is 28°F, meaning significant differences between daytime and nighttime temperatures. The sharpest temperature change occurs between March and April, with a 7°F shift in average temperatures.

Precipitation

0mm25mm50mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 15mmFebPrecipitation: 10mmMarPrecipitation: 26mmAprPrecipitation: 19mmMayPrecipitation: 11mmJunPrecipitation: 12mmJulPrecipitation: 7mmAugPrecipitation: 5mmSepPrecipitation: 14mmOctPrecipitation: 12mmNovPrecipitation: 12mmDecPrecipitation: 14mm
Precipitation
0in1inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 0.6inFebPrecipitation: 0.4inMarPrecipitation: 1inAprPrecipitation: 0.8inMayPrecipitation: 0.4inJunPrecipitation: 0.5inJulPrecipitation: 0.3inAugPrecipitation: 0.2inSepPrecipitation: 0.6inOctPrecipitation: 0.5inNovPrecipitation: 0.5inDecPrecipitation: 0.6in
Precipitation

Merweville is a quite dry location, receiving approximately 157 mm of precipitation annually, which averages out to around 13 mm per month. The wettest month is March, averaging 26 mm of rainfall. April and January also tend to see above-average precipitation. The driest month is August, with just 5 mm. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.Merweville is a quite dry location, receiving approximately 6.2 in of precipitation annually, which averages out to around 0.5 in per month. The wettest month is March, averaging 1 in of rainfall. April and January also tend to see above-average precipitation. The driest month is August, with just 0.2 in. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wind

0km/h5km/h10km/h15km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 14km/hFebWind Speed: 13km/hMarWind Speed: 11km/hAprWind Speed: 10km/hMayWind Speed: 10km/hJunWind Speed: 11km/hJulWind Speed: 12km/hAugWind Speed: 12km/hSepWind Speed: 12km/hOctWind Speed: 13km/hNovWind Speed: 14km/hDecWind Speed: 14km/h
Wind Speed
0mph5mph10mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 8mphFebWind Speed: 8mphMarWind Speed: 7mphAprWind Speed: 6mphMayWind Speed: 6mphJunWind Speed: 7mphJulWind Speed: 7mphAugWind Speed: 7mphSepWind Speed: 8mphOctWind Speed: 8mphNovWind Speed: 8mphDecWind Speed: 9mph
Wind Speed

Merweville is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.Merweville is moderately windy, with an average annual wind speed of 8mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 9mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 6mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3mph between the calmest and windiest months.

Best Time to Visit

Jan26°78°F
Feb25°77°F
Mar23°73°F
Apr19°66°F
May16°60°F
Jun13°55°F
Jul12°53°F
Aug13°56°F
Sep17°62°F
Oct20°68°F
Nov22°72°F
Dec24°75°F

The best time to visit Merweville is during March, April, May, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 15 mm per month. By contrast, January can be uncomfortably hot with highs reaching 35°C, while July is the coldest period with lows dropping to 4°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.The best time to visit Merweville is during March, April, May, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 68°F with modest rainfall averaging 0.6 in per month. By contrast, January can be uncomfortably hot with highs reaching 94°F, while July is the coldest period with lows dropping to 40°F. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Merweville 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 Merweville 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
18 °C64 °F
35 °C94 °F
14 km/h8 mph
15 mm0.6 in
0 cm0 in
Feb
18 °C64 °F
34 °C93 °F
13 km/h8 mph
10 mm0.4 in
0 cm0 in
Mar
16 °C61 °F
31 °C88 °F
11 km/h7 mph
26 mm1 in
0 cm0 in
Apr
12 °C54 °F
27 °C80 °F
10 km/h6 mph
19 mm0.8 in
0 cm0 in
May
8 °C47 °F
24 °C75 °F
10 km/h6 mph
11 mm0.4 in
0 cm0 in
Jun
6 °C42 °F
20 °C68 °F
11 km/h7 mph
12 mm0.5 in
0 cm0 in
Jul
4 °C40 °F
20 °C67 °F
12 km/h7 mph
7 mm0.3 in
0 cm0 in
Aug
6 °C42 °F
22 °C71 °F
12 km/h7 mph
5 mm0.2 in
0 cm0 in
Sep
9 °C48 °F
25 °C76 °F
12 km/h8 mph
14 mm0.6 in
0 cm0 in
OctCurrent
12 °C54 °F
28 °C83 °F
13 km/h8 mph
12 mm0.5 in
0 cm0 in
Nov
14 °C57 °F
31 °C87 °F
14 km/h8 mph
12 mm0.5 in
0 cm0 in
Dec
16 °C61 °F
33 °C91 °F
14 km/h9 mph
14 mm0.6 in
0 cm0 in