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 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
April's arrival registers an average high-temperature of a still warm 76.3°F (24.6°C), closely aligning with the temperature of the previous month. Lanai City maintains a near steady average temperature of 73°F (22.8°C) during the nights of April, demonstrating little drop from daytime highs.Humidity
In April, the average relative humidity is 74%.Rainfall
In Lanai City, in April, during 8.7 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Lanai City, during the entire year, the rain falls for 98.9 days and collects up to 7.64" (194mm) of precipitation.Snowfall
In Lanai City, snow does not fall in January through August, October through December.Ocean temperature
The months with the coldest seawater are January through April, with an average ocean temperature of 75.2°F (24°C).Note: When thinking about a swim in 75.2°F (24°C) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. It is a fun fact that Olympic swimmers dive into waters of 77°F (25°C) to 82.4°F (28°C).
Daylight
In April, the average length of the day in Lanai City is 12h and 38min.On the first day of April, sunrise is at 6:20 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 6:52 pm HST.
Sunshine
The average sunshine in April is 9.3h.UV index
January through April, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 during April translates into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How much does it rain in April?
When it does not snow?
When is the ocean coldest?
What is the ocean temperature in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What are the months with the lowest UV index?
How high is the UV index in April?
Average temperature in April
Lanai City, HI
- Average high temperature in April: 76.3°F
The warmest month (with the highest average high temperature) is September (81°F).
The month with the lowest average high temperature is February (74.8°F).
- Average low temperature in April: 73°F
The months with the highest average low temperature are August and October (77.5°F).
The coldest month (with the lowest average low temperature) is March (71.6°F).
Average pressure in April
Lanai City, HI
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The month with the lowest atmospheric pressure is October (29.96"Hg).
Average wind speed in April
Lanai City, HI
- Average wind speed in April: 10.3mph
The windiest months (with the highest average wind speed) are March and November (10.9mph).
The calmest month (with the lowest average wind speed) is October (9mph).
Average humidity in April
Lanai City, HI
- Average humidity in April: 74%
The month with the highest relative humidity is July (75%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in April
Lanai City, HI
- Average rainfall in April: 0.75"
The wettest month (with the highest rainfall) is March (1.26").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in April
Lanai City, HI
- Average rainfall days in April: 8.7 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (4.7 days).
Average snowfall days in April
Lanai City, HI
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average sea temperature in April
Lanai City, HI
- Average sea temperature in April: 75°F
The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).
Average daylight in April /
Average sunshine in April
Lanai City, HI
- Average daylight in April: 12h and 4min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in April: 9h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in April
Lanai City, HI
- Average sunshine days in April: 17.2 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is February (12.7 days).
Average UV index in April
Lanai City, HI
- Average UV index in April: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover in April
Lanai City, HI
- Average cloud cover in April: 26
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in April
Lanai City, HI
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lanai City, Hawaii, USA
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