Opatija
Croatia
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Opatija, Croatia

January, the same as December, in Opatija, Croatia, is a frosty winter month, with average temperature varying between -3°C (26.6°F) and 6°C (42.8°F).

Temperature

January and February, with an average high-temperature of 6°C (42.8°F), are the coldest months.

Rainfall

In Opatija, Croatia, in January, it is raining for 14 days, with typically 114mm (4.49") of accumulated precipitation. Throughout the year, in Opatija, Croatia, there are 170 rainfall days, and 1471mm (57.91") of precipitation is accumulated.

Sea temperature

In Opatija, the average water temperature is 11.4°C (52.5°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

In Opatija, the average length of the day is 9.2h.

Sunshine

In Opatija, the average sunshine is 4h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 1 in January transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 coldest month in Opatija?

January and February, with an average high-temperature of 6°C (42.8°F), are the coldest months in Opatija.

What is the temperature in January in Opatija?

In January, in Opatija, the average high-temperature is 6°C (42.8°F), and the average low-temperature is -3°C (26.6°F).

How many days does it rain in January in Opatija?

In January, in Opatija, the rain falls for 14 days. Throughout January, 114mm (4.49") of precipitation is accumulated.

What is the water temperature in January in Opatija?

In January, the average sea temperature in Opatija, Croatia, is 11.4°C (52.5°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Opatija have in January?

In January, the average length of the day in Opatija is 9.2h.

How many hours of sunshine does Opatija have in January?

In Opatija, Croatia, the average sunshine in January is 4h.

When is the lowest UV index in Opatija?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Opatija.

What is the UV index intensity in January in Opatija?

In January, the average daily maximum UV index in Opatija is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - Opatija, Croatia
  • Average high temperature in January: 6°C

Warmest months (with the highest average high temperature) are July and August (25°C).
Months with the lowest average high temperature are January and February (6°C).

  • Average low temperature in January: -3°C

Months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average rainfall in January - Opatija, Croatia
  • Average rainfall in January: 114mm

The wettest month (with the highest rainfall) is November (178mm).
The driest month (with the lowest rainfall) is July (88mm).

Average rainfall days in January - Opatija, Croatia
  • Average rainfall days in January: 14 days

Months with the highest number of rainy days are April, May and June (16 days).
Months with the lowest number of rainy days are February, July, August, September and October (13 days).

Average sea temperature in January - Opatija, Croatia
  • Average sea temperature in January: 11.4°C

The best month for swimming (with the highest average sea temperature) is August (24.9°C).
The coldest month (with the lowest average sea temperature) is February (10.7°C).

Average daylight in January / Average sunshine in January - Opatija, Croatia
  • Average daylight in January: 9.2h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in January: 4h

The month with most sunshine is July (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 3h).

Average UV index in January - Opatija, Croatia
  • Average UV index in January: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).