San Jose Weather in December

December in San Jose brings moderate temperatures, with highs of 17°C (63°F) and nights dropping to 13°C (55°F). Expect some rainfall, with around 38 mm (1.5 in) typical for the month.

Rainfall in San Jose in December

Expect around 13 days of rain based on historical data, with 38 mm (1.5 in) average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in San Jose in December

In December, expect moderate temperatures in San Jose, with highs of 17°C (63°F) and lows of 13°C (55°F) at night. December is typically considered a winter month. Conditions are often most pleasant around the middle of the day. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in San Jose in December

The area experiences a moderate amount of sunshine, with approximately 152 hours of sunlight expected. This means a decent mix of sun and overcast.

Average water temperature in December

With water at 17°C (63°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

December in San Jose has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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For a detailed overview over the year and the best time to visit Spain, check out our San Jose's climate page.

San Jose Temperature in December

Min Temperature 13°C (55°F)  

Max Temperature 17°C (63°F)  

Water Temperature 17°C (63°F) *  

Chance of Rain 44%  

Precipitation 38 mm (1.5 in)  

Rainy days 13 days  

Humidity 74% *  

Sunshine 152 hours *  

Percentage Sunshine 55% *  

* Data from: Ibiza, Spain (9 KM, 5 Miles).

What to Wear in San Jose in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket. Expect water temperatures of around 17°C (63°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in San Jose in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

10/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Spain, check out our San Jose's climate page.

More climate data for San Jose

Temperature Rainfall Sunshine Humidity Water Temp

See the full San Jose climate overview or explore weather in Spain.