Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In Opatija, the average high-temperature in April slightly rises, from a cool 11.8°C (53.2°F) in March, to a refreshing 15.4°C (59.7°F). Opatija encounters a small divergence from daytime high temperatures, averaging a low-temperature of 12°C (53.6°F) during April nights.Humidity
In April, the average relative humidity is 72%.Rainfall
In April, in Opatija, the rain falls for 13.2 days. Throughout April, 45mm (1.77") of precipitation is accumulated. Throughout the year, in Opatija, there are 157.3 rainfall days, and 720mm (28.35") of precipitation is accumulated.Snowfall
In Opatija, snow does not fall in January, April through November.Sea temperature
In Opatija, the average seawater temperature in April is 13.7°C (56.7°F).Note: You can swim in 13.7°C (56.7°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.
Daylight
The average length of the day in April is 13h and 32min.On the first day of April in Opatija, sunrise is at 06:42 and sunset at 19:30. On the last day of the month, sunrise is at 05:51 and sunset at 20:08 CEST.
Sunshine
In Opatija, the average sunshine in April is 10.2h.UV index
The average daily maximum UV index in April in Opatija is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 4 during April, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What are April temperatures in Opatija?
What is the average humidity in April in Opatija?
How many days does it rain in April in Opatija?
When it does not snow in Opatija?
Does it snow in Opatija in April?
What is the water temperature in April in Opatija?
How many hours of daylight does Opatija have in April?
When are sunrise and sunset in April in Opatija?
How long on average sun shines in April in Opatija?
What is the UV index intensity in April in Opatija?
Average temperature in April
Opatija, Croatia
- Average high temperature in April: 15.4°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in April: 12°C
The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (5.6°C).
Average pressure in April
Opatija, Croatia
- Average pressure in April: 1014.8mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is July (1014.3mbar).
Average wind speed in April
Opatija, Croatia
- Average wind speed in April: 13.2km/h
The windiest month (with the highest average wind speed) is February (16.7km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in April
Opatija, Croatia
- Average humidity in April: 72%
The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is August (66%).
Average rainfall in April
Opatija, Croatia
- Average rainfall in April: 45mm
The wettest month (with the highest rainfall) is November (89mm).
The driest month (with the least rainfall) is January (35mm).
Average rainfall days in April
Opatija, Croatia
- Average rainfall days in April: 13.2 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is August (11.1 days).
Average snowfall in April
Opatija, Croatia
- Average snowfall in April: 0mm
The months with the highest snowfall are February, March and December (1mm).
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in April
Opatija, Croatia
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in April
Opatija, Croatia
- Average sea temperature in April: 13.7°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 April /
Average sunshine in April
Opatija, Croatia
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in April
Opatija, Croatia
- Average sunshine days in April: 15.3 days
The month with the most sunshine days is March (17.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in April
Opatija, Croatia
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in April
Opatija, Croatia
- Average cloud cover in April: 32
The months with the most cloud cover are January and February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in April
Opatija, Croatia
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Opatija, Croatia
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