Porterville (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Porterville.
Climate overview of Porterville
Porterville, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 37°C (99°F) in July, while winters cool to 14°C (57°F) in December.
With around 260 mm (10 in) of annual rain/snowfall, Porterville has a fairly dry climate. However, it has a distinct dry season from April to November, with very hot summers and mild winters. The wettest month is December, while August sees the least rain.
Porterville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Porterville - and find the best time to visit.
Monthly Temperature in Porterville
Depending on the time of the year, temperatures range from very hot to moderate in Porterville. Average daytime temperatures reach a very hot 37°C (99°F) in July. In December, the coolest month of the year, temperatures drop to a moderate 14°C (57°F).
At night, temperatures range from around 19°C (66°F) in July to 3°C (37°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Porterville
With annual rain/snowfall averaging 260 mm (10 in), Porterville maintains relatively low precipitation levels throughout the seasons. Porterville can be quite wet during December, receiving approximately 57 mm (2.2 in) of precipitation over 9 rainy days.
In contrast, during the driest month (August), you will experience much drier conditions, with 0.2 mm (0.01 in) of precipitation spread across 0 rainy days. For more details, please visit our Porterville Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Porterville
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: March, April, May, October and November
- Warmest weather: July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: A distinct dry season from April to November, with very hot summers and mild winters
Frequently asked questions about the climate in Porterville
What is the best time to visit Porterville?
March, April, May, October and November typically offer the most optimal weather in Porterville. In contrast, June, July, August and September tend to have less optimal conditions. Porterville has a distinct dry season from April to November, with very hot summers and mild winters.
What temperatures can I expect in Porterville?
Daytime highs range from 14°C (57°F) in December to 37°C (99°F) in July. Nighttime lows range from 3°C (37°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Porterville get?
Annual rainfall is around 260 mm (10 in). December is the wettest month with 57 mm (2.2 in), while August is the driest with 0.2 mm (0.01 in).
Porterville 3-Day Forecast
Porterville on the map
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