Oroville

Stay up to date with the latest weather conditions in Oroville. Below, you will find current data, forecasts, and helpful weather charts to help you plan your day.

The climate in Oroville is characterized as Mediterranean, with distinct seasonal changes. The city enjoys warm, and often hot, dry summers and mild, wetter winters. This creates comfortable conditions for visiting throughout the year, depending on your preferences.

Summer months, especially from June to September, are marked by high temperatures, with the thermometer regularly rising above 30°C and an almost complete absence of precipitation. July is the hottest and driest month. In contrast, winter brings cooler weather, with average temperatures around 9-10°C and the majority of annual rainfall, although severe frosts are rare. Spring and autumn are pleasant transitional seasons with moderate temperatures and a few rainy days.

Temperature readings in Oroville vary significantly throughout the year. The highest average monthly temperatures are recorded in July (29.0°C) and August (27.8°C), when daytime highs often reach 37.4°C and 36.0°C, respectively. The coolest months are December, with an average temperature of 9.3°C, and January, at 9.7°C. During this period, minimum night temperatures can drop to 4.9°C in December and 5.3°C in January.

During the summer months from June to September, Oroville experiences high temperature values. Average maximums during this period consistently exceed 32°C, reaching their peak in July (37.4°C). A characteristic feature of summer is the significant daily temperature range: the difference between daytime highs and nighttime lows can be 15-17°C. For example, in July, while the average high is 37.4°C, the average nightly low is 20.6°C.

The winter period, from December to February, is characterized by more moderate temperatures. Average daytime values (maximum temperatures) range from 13.8°C to 16.0°C, while night temperatures drop to 4.4°C - 5.3°C. Daily temperature fluctuations in winter are less pronounced than in summer, averaging 8-12°C. Transitional seasons show a gradual change in temperatures: in April and May, average values are 16.0°C and 20.2°C respectively, while in October and November, the air warms to an average of 19.4°C and 12.4°C.

Oroville experiences distinct seasonality in its precipitation patterns throughout the year. The city has a clear wet season during the winter and early spring months, and a prolonged dry season covering the summer and early autumn.

The highest amount of precipitation occurs between November and March. The wettest months are January, March, and December, each averaging about 6 mm of precipitation. March also stands out with the highest number of rainy days—around 14 days. Rain is also frequent in January and December, with 13 and 12 rainy days respectively. Given that average minimum temperatures in these months remain above 4°C, precipitation falls primarily as rain, likely of moderate intensity.

In contrast, the summer months in Oroville are characterized by extreme dryness. There is virtually no precipitation from June to September, with totals of 0 mm. July is a completely dry month, with no rainy days recorded on average. June and August might see just one day of precipitation, and September up to two, but the total moisture remains zero. Transitional months like April, May, and October feature low precipitation (1-2 mm) and fewer rainy days (from 3 to 7), smoothly shifting the weather from the wet to the dry season and back.

When planning a trip to Oroville, it's important to choose the right wardrobe to stay comfortable in any weather. Summers here are hot and dry, especially from June to September, when average temperatures can reach 25-29°C and highs can soar above 37°C. During these months, you'll need light, breathable clothing made from natural fabrics, shorts, t-shirts, sunscreen, a hat, and sunglasses. Although summer rainfall is minimal, evenings—especially at the beginning and end of the season—can be slightly cooler, so a light sweater or cardigan is a good idea. Comfortable walking shoes are a must year-round.

Winter months (December to February), as well as early spring (March) and late autumn (November), bring cooler weather with average temperatures around 9-12°C and the possibility of precipitation. During this period, you should bring warm clothes: sweaters, fleeces, trousers, as well as a waterproof jacket or coat and an umbrella, as the number of rainy days increases significantly. Layering is particularly useful, allowing you to adapt to temperature changes throughout the day. For transitional seasons like April-May and October, moderate temperatures are typical, but the weather can be unpredictable, so a combination of light and warmer items, along with rain protection, will come in handy.