Waimanalo (HI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Waimanalo.
Climate overview of Waimanalo
Waimanalo, in Hawaii, United States, experiences a tropical savanna climate with minimal seasonal temperature variation. The area has stable conditions year-round with daytime temperatures averaging 26°C (79°F), reaching 28°C (82°F) in September and dropping to 25°C (77°F) in February, with the region receiving moderate precipitation totaling around 458 mm (18 in) annually. The area experiences a distinct dry season from May to November, with December being the wettest month and July the driest, while July offers the most sunshine with 10.2 hours daily on average.
This beach town attracts tourists with its 4.8 kilometer (three-mile) white sand beach, consistently ranked among Hawaii's most beautiful and less crowded than Waikiki. Let's now guide you through the climate details for a complete overview on the best time to visit.
Waimanalo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Waimanalo — and find the best time to visit.
Monthly Temperature in Waimanalo
With minimal seasonal shifts, Waimanalo experiences a constant climate year-round. Average daytime temperatures reach a comfortable 28°C (82°F) in September. In February, the coolest month of the year, temperatures drop to a comfortable 25°C (77°F).
At night, temperatures range from around 25°C (77°F) in September to 21°C (70°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Waimanalo
Waimanalo has a relatively dry climate with low precipitation, averaging 458 mm (18 in) of rainfall annually. Waimanalo can be quite wet during December, receiving approximately 58 mm (2.3 in) of precipitation over 11 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 25 mm (1 in) of precipitation spread across 8 rainy days days. For more details, please visit our Waimanalo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Waimanalo
Waimanalo experiences moderate variation in sunshine hours across the seasons. With 10.2 hours daily sunshine in July, it dips to 6.6 hours in December, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Waimanalo
The mean water temperature over the year ranges from 24°C (75°F) in February to 27°C (81°F) in August.
Water temperature over the year
Humidity in Waimanalo by Month
The relative humidity is high throughout the year in Waimanalo.
The city experiences its highest humidity in January, reaching 73%. In June, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Waimanalo
The mean wind speed over the year ranges from 3 m/s (6 knots) in January to 5 m/s (10 knots) in June, July and August. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Waimanalo
The varied rainfall (from 25 mm (1 in) to 58 mm (2.3 in)) creates diverse landscapes throughout the year. For the best outdoor conditions, plan your visit during the drier months like July. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Waimanalo
What is the best time to visit Waimanalo?
Waimanalo has a distinct dry season from April to October.
What temperatures can I expect in Waimanalo?
Daytime highs range from 25°C (77°F) in February to 28°C (82°F) in September. Nighttime lows range from 21°C (70°F) to 25°C (77°F). Temperatures stay relatively stable year-round.
How much rain does Waimanalo get?
Annual rainfall is around 458 mm (18 in). December is the wettest month with 58 mm (2.3 in), while July is the driest with 25 mm (1 in).
How sunny is Waimanalo?
Waimanalo receives around 3,036 hours of sunshine per year. July is the sunniest month with 306 hours, while December is the cloudiest with just 199 hours. Overall, Waimanalo enjoys abundant sunshine.
Waimanalo 3-Day Forecast
Waimanalo (HI) 3-Day Forecast
Waimanalo on the map
Waimanalo is highlighted — select any city to see its climate.
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