Weather in Olympia: What to Expect by Season

Olympia enjoys a Mediterranean climate with distinct wet and dry seasons. The weather in Olympia shifts from mild winters with frequent rain to hot, sunny summers. If you prefer warm, dry conditions, June through August are the most reliable months for outdoor exploration.

Winters in Olympia are cooler and wetter, with December and January bringing the highest rainfall. Spring and autumn offer a balance—moderate temperatures and fewer crowds—making April, May, and September pleasant times to visit.

Summer in Olympia is hot, with daytime highs often reaching 30–34 °C in July and August. Nights remain warm, rarely dropping below 22 °C, so lightweight clothing and sun protection are essential. The heat peaks in July, but the dry air makes it more bearable than in humid climates.

Winter temperatures in Olympia hover around 12–15 °C during the day, dipping to 7–10 °C at night. January is the coolest month, though frost is rare. Spring and autumn bring comfortable warmth, with April and October averaging 17–24 °C—ideal for walking through the ancient ruins.

Rainfall in Olympia is highly seasonal, with over half the annual precipitation falling between November and February. December is the wettest month, with around 158 mm of rain, while July and August are nearly dry, with just a few millimeters.

The transition months—March, April, and September—see moderate rainfall, but showers are usually brief. If you visit in May or June, you’ll likely encounter dry weather, perfect for exploring the archaeological sites without interruptions.

For a summer trip to Olympia, pack breathable fabrics, a wide-brimmed hat, and sunscreen to cope with the 30+ °C heat. A light scarf or shawl can help shield you from the sun during long walks through the ruins. Comfortable sandals or walking shoes are a must.

In winter, Olympia calls for layers—a waterproof jacket, a sweater for cooler evenings, and an umbrella. Spring and autumn require versatile clothing, like long sleeves for mornings and lighter options for midday. If visiting in November or December, waterproof footwear will keep you comfortable during rain.