Climate Insights for Williston Airport

South Africa

Hottest
January
33°C peak92°F peak
Coldest
July
2°C low36°F low
Wettest
April
24 mm rain1 in rain
Best to Visit
February, March, April
Mild temps & low rain

Climate Overview

The climate in Williston Airport is temperate. The average annual temperature is 18°C and approximately 149 mm of precipitation falls per year. April is the wettest month, receiving around 24 mm of rainfall. Williston Airport 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, August, June, when temperatures can drop to 2°C.The climate in Williston Airport is temperate. The average annual temperature is 64°F and approximately 5.9 in of precipitation falls per year. April is the wettest month, receiving around 1 in of rainfall. Williston Airport 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, August, June, when temperatures can drop to 36°F.

Temperature

0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 33°Average: 26°Min: 17°FebMax: 32°Average: 25°Min: 17°MarMax: 30°Average: 22°Min: 14°AprMax: 25°Average: 17°Min: 10°MayMax: 22°Average: 14°Min: 7°JunMax: 17°Average: 10°Min: 4°JulMax: 17°Average: 9°Min: 2°AugMax: 19°Average: 11°Min: 3°SepMax: 23°Average: 15°Min: 6°OctMax: 27°Average: 19°Min: 10°NovMax: 29°Average: 21°Min: 12°DecMax: 31°Average: 24°Min: 15°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 92°FAverage: 78°FMin: 62°FFebMax: 90°FAverage: 76°FMin: 62°FMarMax: 86°FAverage: 72°FMin: 58°FAprMax: 77°FAverage: 63°FMin: 51°FMayMax: 71°FAverage: 57°FMin: 44°FJunMax: 63°FAverage: 51°FMin: 39°FJulMax: 62°FAverage: 49°FMin: 36°FAugMax: 66°FAverage: 52°FMin: 38°FSepMax: 73°FAverage: 58°FMin: 43°FOctMax: 80°FAverage: 66°FMin: 50°FNovMax: 85°FAverage: 71°FMin: 54°FDecMax: 88°FAverage: 74°FMin: 59°F
Max
Average
Min

Temperatures in Williston Airport 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 33°C and the mean temperature sits around 26°C. July is the coolest month, with minimum temperatures around 2°C and an average of 9°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 5°C shift in average temperatures.Temperatures in Williston Airport vary considerably across the year, with a 56°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 92°F and the mean temperature sits around 78°F. July is the coolest month, with minimum temperatures around 36°F and an average of 49°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 8°F shift in average temperatures.

Precipitation

0mm25mm50mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 16mmFebPrecipitation: 14mmMarPrecipitation: 21mmAprPrecipitation: 24mmMayPrecipitation: 13mmJunPrecipitation: 11mmJulPrecipitation: 9mmAugPrecipitation: 2mmSepPrecipitation: 6mmOctPrecipitation: 8mmNovPrecipitation: 8mmDecPrecipitation: 16mm
Precipitation
0in1inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 0.6inFebPrecipitation: 0.6inMarPrecipitation: 0.8inAprPrecipitation: 1inMayPrecipitation: 0.5inJunPrecipitation: 0.4inJulPrecipitation: 0.3inAugPrecipitation: 0.1inSepPrecipitation: 0.2inOctPrecipitation: 0.3inNovPrecipitation: 0.3inDecPrecipitation: 0.6in
Precipitation

Williston Airport is a quite dry location, receiving approximately 149 mm of precipitation annually, which averages out to around 12 mm per month. The wettest month is April, averaging 24 mm of rainfall. March and January also tend to see above-average precipitation. The driest month is August, with just 2 mm. That's 22 mm less than April, 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.Williston Airport is a quite dry location, receiving approximately 5.9 in of precipitation annually, which averages out to around 0.5 in per month. The wettest month is April, averaging 0.9 in of rainfall. March and January also tend to see above-average precipitation. The driest month is August, with just 0.1 in. That's 0.9 in less than April, 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/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 18km/hFebWind Speed: 18km/hMarWind Speed: 16km/hAprWind Speed: 16km/hMayWind Speed: 15km/hJunWind Speed: 17km/hJulWind Speed: 17km/hAugWind Speed: 17km/hSepWind Speed: 17km/hOctWind Speed: 18km/hNovWind Speed: 18km/hDecWind Speed: 18km/h
Wind Speed
0mph5mph10mph15mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 11mphFebWind Speed: 11mphMarWind Speed: 10mphAprWind Speed: 10mphMayWind Speed: 10mphJunWind Speed: 11mphJulWind Speed: 11mphAugWind Speed: 10mphSepWind Speed: 11mphOctWind Speed: 11mphNovWind Speed: 11mphDecWind Speed: 11mph
Wind Speed

Williston Airport is mildly breezy, with an average annual wind speed of 17km/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 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.Williston Airport is moderately windy, with an average annual wind speed of 11mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 11mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 10mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

Best Time to Visit

Jan26°78°F
Feb25°76°F
Mar22°72°F
Apr17°63°F
May14°57°F
Jun10°51°F
Jul9°49°F
Aug11°52°F
Sep15°58°F
Oct19°66°F
Nov21°71°F
Dec24°74°F

The best time to visit Williston Airport is during February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 15 mm per month. By contrast, January can be uncomfortably hot with highs reaching 33°C, while July is the coldest period with lows dropping to 2°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.The best time to visit Williston Airport is during February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 70°F with modest rainfall averaging 0.6 in per month. By contrast, January can be uncomfortably hot with highs reaching 92°F, while July is the coldest period with lows dropping to 36°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 Williston Airport 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 Williston Airport 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
17 °C62 °F
33 °C92 °F
18 km/h11 mph
16 mm0.6 in
0 cm0 in
Feb
17 °C62 °F
32 °C90 °F
18 km/h11 mph
14 mm0.6 in
0 cm0 in
Mar
14 °C58 °F
30 °C86 °F
16 km/h10 mph
21 mm0.8 in
0 cm0 in
Apr
10 °C51 °F
25 °C77 °F
16 km/h10 mph
24 mm1 in
0 cm0 in
May
7 °C44 °F
22 °C71 °F
15 km/h10 mph
13 mm0.5 in
0 cm0 in
Jun
4 °C39 °F
17 °C63 °F
17 km/h11 mph
11 mm0.4 in
0 cm0 in
Jul
2 °C36 °F
17 °C62 °F
17 km/h11 mph
9 mm0.3 in
0 cm0 in
Aug
3 °C38 °F
19 °C66 °F
17 km/h10 mph
2 mm0.1 in
0 cm0 in
Sep
6 °C43 °F
23 °C73 °F
17 km/h11 mph
6 mm0.2 in
0 cm0 in
OctCurrent
10 °C50 °F
27 °C80 °F
18 km/h11 mph
8 mm0.3 in
0 cm0 in
Nov
12 °C54 °F
29 °C85 °F
18 km/h11 mph
8 mm0.3 in
0 cm0 in
Dec
15 °C59 °F
31 °C88 °F
18 km/h11 mph
16 mm0.6 in
0 cm0 in