Ewa Beach, HI climate
Ewa Beach has warm winters and warm summers, with very little rain. A typical July afternoon reaches 87°, a January night drops to 62°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Ewa Beach feels like
Winter
Spring
Summer
Fall
Ewa Beach weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground |
|---|---|---|---|---|---|---|
| January | 80° | 62° | 1.8" | 0 | 10 | 0 |
| February | 80° | 63° | 1.7" | 0 | 8 | 0 |
| March | 81° | 64° | 2.7" | 0 | 9 | 0 |
| April | 82° | 66° | 0.8" | 0 | 7 | 0 |
| May | 84° | 67° | 1.0" | 0 | 6 | 0 |
| June | 86° | 69° | 0.4" | 0 | 6 | 0 |
| July | 87° | 71° | 0.5" | 0 | 7 | 0 |
| August | 87° | 71° | 0.8" | 0 | 4 | 0 |
| September | 87° | 70° | 0.8" | 0 | 6 | 0 |
| October | 86° | 69° | 1.7" | 0 | 7 | 0 |
| November | 84° | 67° | 2.2" | 0 | 9 | 0 |
| December | 81° | 65° | 2.6" | 0 | 10 | 0 |
| Year | 84° | 67° | 17.1" | 0.0" | 86 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more.
Rain and snow in Ewa Beach
Ewa Beach gets 17 inches of rain and melted snow a year. March is the wettest month and June the driest. Rain or snow falls on about 86 days a year.
A year-round growing season
Heating and cooling a home in Ewa Beach
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Ewa Beach, 0% of that work is heating and 100% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Ewa Beach and its neighbors
Ewa Beach borders 2 towns with climate data. January nights across them vary by 4.6°. Ocean Pointe has the coldest January nights (62°) and Iroquois Point the hottest July afternoons (88°). Ewa Beach’s January low is 62° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Ewa Beach compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about Ewa Beach’s climate
What is the coldest month in Ewa Beach?
January, with a typical high of 80° and a low of 62°.
What is the hottest month in Ewa Beach?
August, with a typical high of 87° and a low of 71°. About 14 days a year reach 90°.
How much snow does Ewa Beach get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Ewa Beach?
Frost is uncommon. Only 0% of years see a night at 32° or below.
What is the rainiest month in Ewa Beach?
March, with 2.7 inches of rain and melted snow. The year totals 17 inches.
NOAA’s gridded normals don’t cover this state, so temperatures and rainfall come from the nearest weather station. Snow, frost dates and day counts come from NOAA’s weather station at Ewa Beach Usgs 702.2, HI (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.