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Waimanalo Beach weather by month

What a typical year looks like in Waimanalo Beach, Hawaii: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Kaneohe Bay Mcas, 15 km from Waimanalo Beach; records cover 1942–2026.

Today’s Waimanalo Beach forecast

The year at a glance

January: typical high 78.5°F, low 68.1°F, precipitation 2.81 in. February: typical high 78°F, low 68.5°F, precipitation 3.16 in. March: typical high 78.3°F, low 69.1°F, precipitation 3.62 in. April: typical high 79.6°F, low 70.8°F, precipitation 1.62 in. May: typical high 81°F, low 72°F, precipitation 1.32 in. June: typical high 82.3°F, low 73.9°F, precipitation 1.27 in. July: typical high 83.4°F, low 74.8°F, precipitation 1.31 in. August: typical high 84.1°F, low 75.4°F, precipitation 1.42 in. September: typical high 84.1°F, low 75.6°F, precipitation 1.5 in. October: typical high 83.3°F, low 74.8°F, precipitation 2.58 in. November: typical high 81.2°F, low 72.5°F, precipitation 3.68 in. December: typical high 79.1°F, low 70.3°F, precipitation 3.53 in.40°4°50°10°60°16°70°21°80°27°90°32°100°38°110°43°79°26°68°20°Jan78°26°69°20°Feb78°26°69°21°Mar80°26°71°22°Apr81°27°72°22°May82°28°74°23°Jun83°29°75°24°Jul84°29°75°24°Aug84°29°76°24°Sep83°29°75°24°Oct81°27°73°23°Nov79°26°70°21°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
27.8 in707 mm
Snow a year
Rare
Last spring freeze
Rare
First fall freeze
Rare
Heating degree days
0
Cooling degree days
4,246

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 61°16° (heating, 99%) and 88°31° (cooling, 1%).

Month by month

Waimanalo Beach in January

Highs average 79°26° and lows 68°20°, with 2.8 in71 mm of precipitation in a typical January.

Record high
89°32° (1984)
Record low
54°12° (2003)
Heating degree days
0
Cooling degree days
257

Waimanalo Beach in February

Highs average 78°26° and lows 69°20°, with 3.2 in80 mm of precipitation in a typical February.

Record high
90°32° (2025)
Record low
55°13° (1998)
Heating degree days
0
Cooling degree days
231

Waimanalo Beach in March

Highs average 78°26° and lows 69°21°, with 3.6 in92 mm of precipitation in a typical March.

Record high
95°35° (2014)
Record low
54°12° (1942)
Heating degree days
0
Cooling degree days
270

Waimanalo Beach in April

Highs average 80°26° and lows 71°22°, with 1.6 in41 mm of precipitation in a typical April.

Record high
89°32° (2023)
Record low
60°16° (1995)
Heating degree days
0
Cooling degree days
306

Waimanalo Beach in May

Highs average 81°27° and lows 72°22°, with 1.3 in34 mm of precipitation in a typical May.

Record high
90°32° (2024)
Record low
60°16° (1996)
Heating degree days
0
Cooling degree days
356

Waimanalo Beach in June

Highs average 82°28° and lows 74°23°, with 1.3 in32 mm of precipitation in a typical June.

Record high
90°32° (1969)
Record low
66°19° (2011)
Heating degree days
0
Cooling degree days
393

Waimanalo Beach in July

Highs average 83°29° and lows 75°24°, with 1.3 in33 mm of precipitation in a typical July.

Record high
93°34° (2012)
Record low
62°17° (2017)
Heating degree days
0
Cooling degree days
437

Waimanalo Beach in August

Highs average 84°29° and lows 75°24°, with 1.4 in36 mm of precipitation in a typical August.

Record high
96°36° (2012)
Record low
68°20° (1954)
Heating degree days
0
Cooling degree days
457

Waimanalo Beach in September

Highs average 84°29° and lows 76°24°, with 1.5 in38 mm of precipitation in a typical September.

Record high
96°36° (2012)
Record low
66°19° (1996)
Heating degree days
0
Cooling degree days
446

Waimanalo Beach in OctoberThis month

Highs average 83°29° and lows 75°24°, with 2.6 in66 mm of precipitation in a typical October.

Record high
94°34° (2024)
Record low
61°16° (2017)
Heating degree days
0
Cooling degree days
436

Waimanalo Beach in November

Highs average 81°27° and lows 73°23°, with 3.7 in93 mm of precipitation in a typical November.

Record high
91°33° (2013)
Record low
57°14° (2017)
Heating degree days
0
Cooling degree days
356

Waimanalo Beach in December

Highs average 79°26° and lows 70°21°, with 3.5 in90 mm of precipitation in a typical December.

Record high
91°33° (2013)
Record low
55°13° (1996)
Heating degree days
0
Cooling degree days
301