Valparaíso
Chile
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Valparaíso, Chile

December, the first month of the summer, in Valparaíso, is still a comfortable month, with average temperature varying between 12.8°C (55°F) and 19.9°C (67.8°F).

Temperature

In Valparaíso, the average high-temperature in December is essentially the same as in November - a still comfortable 19.9°C (67.8°F). In Valparaíso, the average low-temperature is 12.8°C (55°F).

Humidity

The least humid month in Valparaíso is December, with an average relative humidity of 70%.

Rainfall

In December, in Valparaíso, the rain falls for 0.3 days. Throughout December, 1.3mm (0.05") of precipitation is accumulated. Throughout the year, in Valparaíso, there are 26.6 rainfall days, and 372.5mm (14.67") of precipitation is accumulated.

Sea temperature

In Valparaíso, in December, the average water temperature is 16.4°C (61.5°F).
Note: For most, swimming in 16.4°C (61.5°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

With an average of 14.3h of daylight, December has the longest days of the year in Valparaíso, Chile.

Sunshine

In December, the average sunshine in Valparaíso is 8.5h.

UV index

January and December, with an average maximum UV index of 12, are months with the highest UV index in Valparaíso, Chile. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 12 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in December in Valparaíso?

The average high-temperature, in December, in Valparaíso, is 19.9°C (67.8°F), while the average low-temperature is 12.8°C (55°F).

What is the least humid month in Valparaíso?

The least humid month in Valparaíso is December, with an average relative humidity of 70%.

What is the average humidity in December in Valparaíso?

The average relative humidity in December is 70%.

How much does it rain in Valparaíso in December?

In Valparaíso, during December, the rain falls for 0.3 days and regularly aggregates up to 1.3mm (0.05") of precipitation.

What is the sea water temperature in December in Valparaíso?

In Valparaíso, the average seawater temperature in December is 16.4°C (61.5°F). For most, swimming in 16.4°C (61.5°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

When are the longest days in Valparaíso?

With an average of 14.3h of daylight, December has the longest days of the year in Valparaíso.

What is the average length of the day in December in Valparaíso?

In December, the average length of the day in Valparaíso is 14.3h.

How long on average sun shines in December in Valparaíso?

In Valparaíso, Chile, the average sunshine in December is 8.5h.

What is the month with the highest UV index in Valparaíso?

January and December, with an average maximum UV index of 12, are months with the highest UV index in Valparaíso.

How high is the UV index in December in Valparaíso?

In December, the average daily maximum UV index is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Valparaíso, Chile
  • Average high temperature in December: 19.9°C

The warmest month (with the highest average high temperature) is January (20.8°C).
The month with the lowest average high temperature is July (14.3°C).

  • Average low temperature in December: 12.8°C

Months with the highest average low temperature are January and February (13.5°C).
The coldest month (with the lowest average low temperature) is July (9.2°C).

Average humidity in December - Valparaíso, Chile
  • Average humidity in December: 70%

Months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is December (70%).

Average rainfall in December - Valparaíso, Chile
  • Average rainfall in December: 1.3mm

The wettest month (with the highest rainfall) is July (111.2mm).
The driest month (with the lowest rainfall) is February (0mm).

Average rainfall days in December - Valparaíso, Chile
  • Average rainfall days in December: 0.3 days

The month with the highest number of rainy days is July (6.3 days).
The month with the lowest number of rainy days is February (0 days).

Average sea temperature in December - Valparaíso, Chile
  • Average sea temperature in December: 16.4°C

The best month for swimming (with the highest average sea temperature) is February (17.9°C).
The coldest month (with the lowest average sea temperature) is July (13.1°C).

Average daylight in December / Average sunshine in December - Valparaíso, Chile
  • Average daylight in December: 14.3h

The month with the longest days is December (Average daylight: 14.3h).
The month with shortest days is June (Average daylight: 10h).

  • Average sunshine in December: 8.5h

The month with most sunshine is January (Average sunshine: 9h).
The month with least sunshine is June (Average sunshine: 2.7h).

Average UV index in December - Valparaíso, Chile
  • Average UV index in December: 12

Months with the highest UV index are January and December (UV index 12).
Months with the lowest UV index are June and July (UV index 3).