Kailua, Hawaii Weather by Month

Introduction to Kailua, Hawaii

Kailua is a beautiful town located on the windward coast of the island of Oahu in the U.S. state of Hawaii. Known for its stunning beaches, lush landscapes, and vibrant community, Kailua offers a quintessential Hawaiian experience with a unique blend of natural beauty and small-town charm. The town is approximately 12 miles northeast of Honolulu, the state capital, providing a serene coastal atmosphere while still being accessible to the amenities of a major city.

Geographically, Kailua lies at approximately 21.40°N latitude and 157.74°W longitude, covering an area of about 10.0 square miles. The town has a population of around 38,000 residents, contributing to its bustling yet close-knit community feel.

Kailua is home to several notable landmarks and institutions. One of the most famous is Kailua Beach Park, which is consistently ranked among the best beaches in the world. Another significant landmark is the Ulupo Heiau State Historic Site, an ancient Hawaiian temple that offers a glimpse into the region’s rich cultural history. The town is also near Marine Corps Base Hawaii, which plays a significant role in the local economy. While there are no major universities within Kailua itself, the nearby University of Hawaii at Manoa in Honolulu provides higher education opportunities to residents.

Climate and Weather Overview

Kailua, Hawaii, experiences a tropical rainforest climate characterized by warm temperatures and high humidity throughout the year. The climate is influenced by its coastal location and the trade winds that blow from the northeast, resulting in relatively stable temperatures and significant precipitation variations.

Average Monthly Climate Data

Month Average Temperature (°F) Average Precipitation (inches) Average Sunny Days
January 74.0 4.5 23
February 74.0 3.8 22
March 75.0 4.3 24
April 76.0 2.7 24
May 78.0 2.2 26
June 80.0 1.8 27
July 81.0 2.1 28
August 82.0 2.3 27
September 82.0 2.8 26
October 80.0 4.1 25
November 77.0 4.0 23
December 75.0 4.5 22

Weather by Month in Kailua, Hawaii

January

January in Kailua is typically warm and relatively wet. Average temperatures range from a low of around 68°F to a high of about 80°F. Precipitation is moderate, averaging around 4.5 inches, mostly in the form of rain. The town typically enjoys about 23 sunny days during this month.

Natural disasters such as severe storms or flooding can occur, though they are rare. Recommended activities include beach outings, hiking the Lanikai Pillbox trail, and exploring local markets.

February

February sees similar temperatures, with averages ranging from 68°F to 80°F. Precipitation remains moderate at around 3.8 inches, with frequent rain showers. The number of sunny days decreases slightly to around 22 days.

Outdoor activities such as kayaking in Kailua Bay, visiting botanical gardens, and enjoying water sports are popular. Staying informed about weather conditions is important to avoid unexpected showers.

March

March marks the beginning of spring with average temperatures climbing to between 69°F and 81°F. Precipitation averages around 4.3 inches, with more frequent rain showers. Kailua typically experiences around 24 sunny days during this month.

The emergence of blooming flowers makes it a beautiful time for outdoor activities. Hiking, garden tours, and beach visits are recommended. Natural disasters such as heavy rainfall can occur, so it’s important to stay prepared.

April

April sees a more noticeable shift to warmer weather with temperatures ranging from 70°F to 82°F. Precipitation decreases slightly to 2.7 inches, and the number of sunny days increases to around 24.

This month is ideal for outdoor activities like picnicking, biking, and visiting local farmers’ markets. The risk of severe weather begins to decrease, making it a pleasant time to explore.

May

May brings even warmer temperatures, ranging from 72°F to 84°F. Precipitation remains low at 2.2 inches. The abundance of sunshine, with about 26 sunny days, makes it perfect for outdoor adventures.

Residents and visitors can enjoy activities like snorkeling, hiking, and attending local festivals. May is also known for its beautiful spring blooms, making it an ideal time for nature walks and photography.

June

June heralds the start of summer with average temperatures ranging from 74°F to 86°F. Precipitation averages around 1.8 inches, often in the form of brief but intense rain showers. Kailua typically experiences around 27 sunny days in June.

Outdoor activities such as swimming, boating, and picnics are popular. The weather is generally favorable with a high number of sunny days, making it an excellent time for outdoor exploration.

July

July is typically the hottest month in Kailua, with temperatures ranging from 75°F to 87°F. Precipitation is around 2.1 inches, making it a relatively dry month. Kailua enjoys about 28 sunny days during this month.

Despite the heat, outdoor activities like attending local fairs, swimming, and exploring state parks are common. Residents should stay hydrated and take precautions against heat-related illnesses.

August

August continues the summer warmth with temperatures ranging from 75°F to 87°F. Precipitation remains low at 2.3 inches, and the number of sunny days is around 27.

The weather remains suitable for outdoor activities, including water sports and hiking. It’s important to monitor weather reports for any severe thunderstorms that may occur.

September

September brings a gradual cooling with temperatures ranging from 74°F to 86°F. Precipitation averages around 2.8 inches, and the number of sunny days starts to decrease to about 26.

This month is ideal for outdoor activities such as beach outings, hiking, and attending local events. The risk of severe weather remains low, making it a pleasant time to enjoy the outdoors.

October

October sees more significant cooling with temperatures ranging from 73°F to 84°F. Precipitation averages around 4.1 inches, and sunny days are around 25.

Fall foliage and slightly cooler temperatures make this month particularly scenic, ideal for outdoor photography, hiking, and visiting local attractions. Natural disasters are rare in October, but it can be a wet month.

November

November temperatures range from 72°F to 82°F, with precipitation averaging 4.0 inches. The weather becomes cooler, and the number of sunny days decreases to about 23.

Outdoor activities like hiking and visiting local markets are still enjoyable. As the holiday season approaches, indoor activities and local events become more popular.

December

December brings cooler temperatures, ranging from 71°F to 81°F, and precipitation averages around 4.5 inches. Snow is extremely rare but not impossible. Kailua experiences around 22 sunny days during this month.

Indoor activities such as visiting museums and historical sites are recommended. The festive season also brings various local events and holiday markets to enjoy.

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