Climate Insights for Porterville
Climate Overview
The climate in Porterville is temperate. The average annual temperature is 17°C and approximately 528 mm of precipitation falls per year. June is the wettest month, receiving around 113 mm of rainfall. Porterville 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 5°C.The climate in Porterville is temperate. The average annual temperature is 62°F and approximately 20.8 in of precipitation falls per year. June is the wettest month, receiving around 4.5 in of rainfall. Porterville 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 40°F.
Temperature
Temperatures in Porterville vary considerably across the year, with a 26°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 23°C. July is the coolest month, with minimum temperatures around 5°C and an average of 10°C. On average, daily temperatures fluctuate by about 14°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 4°C shift in average temperatures.Temperatures in Porterville vary considerably across the year, with a 47°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 87°F and the mean temperature sits around 74°F. July is the coolest month, with minimum temperatures around 40°F and an average of 51°F. On average, daily temperatures fluctuate by about 25°F between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°F shift in average temperatures.
Precipitation
Porterville is a relatively dry area, receiving approximately 528 mm of precipitation annually, which averages out to around 44 mm per month. The wettest month is June, averaging 113 mm of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 10 mm. That's 103 mm less than June, 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.Porterville is a relatively dry area, receiving approximately 20.8 in of precipitation annually, which averages out to around 1.7 in per month. The wettest month is June, averaging 4.4 in of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 0.4 in. That's 4.1 in less than June, 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
Porterville is relatively calm, with an average annual wind speed of 8km/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 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.Porterville is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.
Best Time to Visit
The best time to visit Porterville is during January, February, March, April, 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 23 mm per month. By contrast, July can be quite cold with temperatures dropping to 5°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.The best time to visit Porterville is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 69°F with modest rainfall averaging 0.9 in per month. By contrast, July can be quite cold with temperatures 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 Porterville 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 Porterville 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.