
January in Anaheim brings mild Southern California winter weather, with daytime highs typically ranging from 65–70°F (18–21°C) and cooler nights dipping to around 45–50°F (7–10°C). The city sees its wettest month of the year in January, with an average of 3–4 inches of rainfall spread across several rainy days, so a light waterproof layer is a genuine necessity rather than an afterthought. Mornings and evenings can feel noticeably chilly, especially near Disneyland where you may be standing in queue lines or watching outdoor shows after dark. The key to dressing for Anaheim in January is layering. Start with a breathable long-sleeve base layer or lightweight sweater, add a medium-weight jacket or denim jacket for the afternoon, and keep a packable rain shell or water-resistant outer layer on hand. Comfortable walking shoes with some grip are essential — wet pavement around the theme parks can be slippery. Avoid heavy winter coats, as midday sun can make them uncomfortable. Opt for dark-wash jeans or chinos paired with sneakers or ankle boots. A crossbody bag or small backpack works well for carrying layers as temperatures shift throughout the day.
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Layer up with a long-sleeve shirt or light sweater under a medium-weight jacket, and always carry a water-resistant outer layer given January's higher rainfall chances. Comfortable walking shoes or ankle boots are ideal for long days at Disneyland or other attractions. Evenings cool down significantly, so having an extra layer in your bag is essential.
Anaheim is mild but not warm in January — daytime temperatures typically reach the mid-to-upper 60s°F, while nights can drop into the mid-40s°F. It won't feel bitterly cold, but the cooler evenings and potential wind chill can catch visitors off guard, especially those coming from warmer climates. A medium-weight jacket is sufficient; heavy winter coats are unnecessary.
Yes — January is Anaheim's rainiest month, with an average of around 3–4 inches of rainfall and roughly 6–8 rainy days throughout the month. Rain tends to come in short bursts or multi-day systems rather than constant drizzle. Packing a compact umbrella or a packable waterproof jacket is strongly recommended, especially if you're spending time at Disneyland or California Adventure.
Pack lightweight layers including long-sleeve tops, a mid-layer fleece or sweater, and a water-resistant or waterproof jacket. Comfortable, supportive walking shoes with grip are a must for theme park days, particularly on wet surfaces. Include a small umbrella, jeans or chinos for cooler days, and a couple of lighter tops for unexpectedly warm sunny afternoons.