San Francisco Weather In December: What To Expect

Planning a trip to San Francisco in December? Know what weather to expect! This guide covers average temperatures, rainfall, and tips for enjoying the city in winter.

Key Takeaways

• December in San Francisco is typically cool and wet, with average temperatures ranging from the low 40s to the mid-50s Fahrenheit.
• Rain is common in December, so pack waterproof clothing and an umbrella.
• Despite the weather, December can be a festive time to visit San Francisco, with holiday events and fewer crowds than the summer months.
• Be prepared for potential fog, especially in the mornings.
• Layering clothing is essential for staying comfortable, as temperatures can fluctuate throughout the day.

Introduction

San Francisco in December offers a unique charm, trading the typical Californian sunshine for a cooler, more atmospheric experience. While it might not be the ideal beach weather, December brings a festive spirit to the city, with holiday decorations, events, and a cozy ambiance. Understanding the weather patterns will help you pack appropriately and make the most of your visit. This guide provides a comprehensive overview of what to expect from San Francisco's weather in December, including average temperatures, rainfall, and tips for enjoying the city during this time of year.

What & Why (Climate Context, Benefits, Risks)

San Francisco's Mediterranean Climate

San Francisco boasts a Mediterranean climate, characterized by mild, wet winters and dry summers. December falls squarely within the wet season. This means you can expect cooler temperatures and a higher likelihood of rain compared to the summer months. The city's unique microclimates also play a role, with variations in temperature and fog levels across different neighborhoods. For example, areas closer to the coast tend to be foggier and cooler than those further inland.

Why Visit San Francisco in December?

Despite the weather, December can be a fantastic time to visit San Francisco. The city is beautifully decorated for the holidays, and there are numerous festive events and activities to enjoy, such as ice skating at Union Square and the Great Dickens Christmas Fair. Another benefit is that the crowds are generally smaller than during the peak summer season, allowing for a more relaxed and intimate experience. Plus, hotel rates and airfare may be lower than in the summer.

Potential Risks and Considerations

The primary risk associated with visiting San Francisco in December is the weather. Rain can disrupt outdoor activities, and the cooler temperatures may not be ideal for everyone. Fog can also impact visibility, particularly at scenic viewpoints like the Golden Gate Bridge. It's essential to be prepared for these conditions by packing appropriately and having alternative indoor activities in mind.

Typical Weather Conditions in December

Average Temperatures

The average high temperature in San Francisco in December is around 55°F (13°C), while the average low is around 43°F (6°C). However, these are just averages, and temperatures can fluctuate. It's not uncommon to experience warmer days in the low 60s (around 16°C), especially if the sun is out. Conversely, nighttime temperatures can dip into the high 30s (around 3°C).

Rainfall

December is one of the rainiest months in San Francisco, with an average of around 4.5 inches (114 mm) of rainfall. There's a significant chance of rain on any given day, so it's crucial to pack waterproof clothing and an umbrella. However, the rain is often intermittent, with periods of sunshine in between showers.

Fog

While the infamous San Francisco fog, often called “Karl the Fog,” is more prevalent in the summer, it can still occur in December. Mornings are particularly prone to fog, which can linger for several hours before burning off. This can affect visibility, especially at landmarks like the Golden Gate Bridge. Check the forecast before heading out to popular viewpoints.

Daylight Hours

December has the shortest days of the year in San Francisco. You can expect around 9 to 10 hours of daylight, with the sun setting early in the afternoon. This means you'll have less time for outdoor activities, so plan accordingly.

How to Prepare for San Francisco Weather in December

Layering is Key

The most effective way to prepare for San Francisco's December weather is to dress in layers. This allows you to adjust to temperature fluctuations throughout the day. Start with a base layer of moisture-wicking fabric, add a mid-layer like a fleece or sweater, and top it off with a waterproof and windproof jacket.

Essential Clothing Items

• Waterproof Jacket: A waterproof jacket is a must-have for San Francisco in December. Look for one that is also windproof for added protection.
• Warm Sweater or Fleece: A warm mid-layer will help you stay comfortable on cooler days and evenings.
• Long-Sleeved Shirts: Pack several long-sleeved shirts to layer under your sweater or jacket.
• Waterproof Shoes or Boots: Protect your feet from the rain with waterproof footwear. Comfortable walking shoes are essential, as you'll likely be doing a lot of walking.
• Warm Socks: Keep your feet warm with wool or synthetic socks.
• Hat, Gloves, and Scarf: These accessories will help you stay warm in the cooler evenings and when the wind picks up.
• Umbrella: A compact umbrella is essential for dealing with the frequent rain showers.

Check the Forecast Regularly

San Francisco's weather can be unpredictable, so it's essential to check the forecast regularly, especially the day before and the morning of any planned outdoor activities. This will help you adjust your plans and clothing choices accordingly.

Examples & Use Cases

Case Study: Visiting San Francisco for Christmas

Imagine you're visiting San Francisco for Christmas. You've booked your flights and hotel, but you're unsure what to pack. Based on this guide, you know to expect cool and wet weather. You pack layers, including a waterproof jacket, warm sweaters, and comfortable waterproof shoes. You also bring an umbrella and a hat and gloves for extra warmth. You check the forecast before heading out each day and adjust your plans as needed. Despite the rain, you enjoy the festive atmosphere, visit the Christmas tree at Union Square, and take a tour of the holiday lights in the neighborhoods.

Example Itinerary: A Rainy Day in San Francisco

Let's say you wake up to a rainy day in San Francisco. Instead of being disappointed, you have a plan. You start by visiting a museum, such as the California Academy of Sciences or the de Young Museum. You then head to a cozy café for a warm drink and a pastry. In the afternoon, you explore the shops in Union Square or visit a bookstore. In the evening, you enjoy a delicious meal at one of San Francisco's many restaurants and catch a show in the theater district.

Best Practices & Common Mistakes

Best Practices

• Pack for all types of weather: Even if the forecast looks promising, be prepared for unexpected rain or temperature changes.
• Check the forecast daily: Stay updated on the latest weather conditions to adjust your plans and clothing choices.
• Take advantage of indoor activities: San Francisco has a wide range of museums, theaters, restaurants, and shops to explore on rainy days.
• Embrace the festive atmosphere: San Francisco is a beautiful city during the holidays, so enjoy the decorations, events, and cozy ambiance.

Common Mistakes

• Underestimating the cold: San Francisco's December weather can be surprisingly chilly, especially in the evenings and when the wind picks up.
• Forgetting waterproof clothing: Rain is common in December, so waterproof clothing is essential.
• Not checking the forecast: Failing to check the forecast can lead to being caught unprepared for unexpected weather changes.
• Overpacking: While it's important to be prepared, avoid overpacking by focusing on versatile clothing items that can be layered.

FAQs

Q: What is the average temperature in San Francisco in December? A: The average high temperature is around 55°F (13°C), and the average low is around 43°F (6°C).

Q: How much does it rain in San Francisco in December? A: December is one of the rainiest months, with an average of around 4.5 inches (114 mm) of rainfall. — Yankees Game Today: Time, Channel, Tickets & More

Q: Is it foggy in San Francisco in December? A: Fog is possible in December, especially in the mornings. It's more common in the summer months but can still occur. — The Smashing Machine: A Gripping MMA Documentary

Q: What should I pack for San Francisco in December? A: Pack layers, including a waterproof jacket, warm sweaters, long-sleeved shirts, waterproof shoes, and an umbrella.

Q: Are there any special events in San Francisco in December? A: Yes, there are many holiday events and activities, such as ice skating at Union Square and the Great Dickens Christmas Fair.

Conclusion with CTA

San Francisco in December offers a unique blend of festive cheer and cooler, wetter weather. By understanding what to expect and preparing accordingly, you can have a wonderful visit. Remember to pack layers, check the forecast, and embrace the city's indoor attractions on rainy days. — Tequesta, FL Weather Forecast & Conditions

Ready to plan your December trip to San Francisco? Book your flights and accommodation today and experience the magic of the city during the holiday season!

Last updated: October 26, 2023, 15:38 UTC