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Joint Base Pearl Harbor-Hickam Weather: What To Expect When Moving
Joint Base Pearl Harbor-Hickam Weather: What To Expect When MovingJoint Base Pearl Harbor-Hickam Weather: What To Expect When Moving

Joint Base Pearl Harbor-Hickam Weather: What To Expect When Moving


Joint Base Pearl Harbor-Hickam is located on the southern side of the island of O’ahu and is right next to Honolulu, the state capital. The temperature is comfortable all year round. You can expect high 60s to low 90s throughout the whole year, following the slight seasonal changes. On the island, you will experience various micro-climates depending on where you are in relation to the winds. Specifically, the trade winds which create windward and leeward regions. In general, the north and east facing coasts tend to get more rain than the south and west-facing coasts. The base is in the south and west-facing coast areas and has less rainfall than the other areas. But you’re just a drive away from these varying micro-climates, so you can enjoy them all within a few hours.

Suggested Read: Joint Base Pearl Harbor-Hickam: In-Depth Welcome Center

Joint Base Pearl Harbor-Hickam Weather in the Spring


High temps: Low 80s
Low temps: High 60s

In spring, you’ll start to warm up from the ‘winter’ season. You may continue to experience rain, but overall this is a great season to get out and about. The sun will be shining, so be sure to pack protective clothes, sun screen, and plenty of water. The ocean will be the coolest all year, but it’s still only in the low 70s, plenty warm enough to enjoy a swim or a day on the beach.


High temps: High 80s to low 90s
Low temps: Mid 70s

During the summer months, the sun is almost always directly overhead and the air is warm and dry. July, August, and September often see the highest temperatures on O’ahu, and the rain is more sparse. Even though you are on an island and always near the water, the sun can have devastating effects if you do not prepare. Be sure to wear appropriate clothing and sunscreen, especially during these months. The water is also warmest during the summer and you might be tempted to take a dip in the ocean. The water temperature rarely drops below the low 70s, but make sure you reapply your sunblock if you are in for longer periods of time.

Joint Base Pearl Harbor-Hickam Weather in the Fall


High temps: Mid 80s
Low temps: Mid 70s

Fall is a gentle transition from the summer to the winter months. With this area’s consistent year-round climate, you won’t feel much of a change. Keep in mind, August and September have been historically peak hurricane season months, so be on the lookout for alerts from local authorities.


High temps: Mid 80s
Low temps: Mid 60s

During the ‘winter’ in Hawai’i, you’ll feel a slight dip in the temperature. You may also see more clouds in the sky and some more wind and rain. But fear not, nearly all of the activities you enjoyed are still possible during this tropical winter! Water temperatures aren’t too low so, though a wetsuit might be useful, you’ll still see people in the water as if it were the summer. If you’re out and about, your packing list might not change too much. Be sure to bring an extra sweater or top, and good closed toed shoes if you’re hiking in case of rain.

Field & Training Expectations

Field & Training Expectations

Hawai’i might be paradise when you’re not in the field, but don’t let it fool you if you’re training. Though you have moderate temperatures year round, field conditions can still be challenging for a Soldier, Sailor, Marine, or Airman. Your command or the base may issue warnings or advisories before stepping off, but it is always good to check before planning for field operation. Despite its moderate tropical climate, see below for some tips to keep you healthy and safe.

  • Hydration is key, no matter what the weather, but especially in the hotter parts of the year
  • Waterproof your gear, the rain can be unforgiving and wet gear is never fun
  • Heat injuries are totally preventable, so monitor yourself and your fellow personnel
  • If you have any questions, be sure to talk to your medical unit or the field medics
  • In short, use your best judgment in preparing for the worst. Remember, your health and safety are paramount! Check in with yourself and your teammates as you are out there training.

Keep the Hawai’i Emergency Management Agency website handy for more information on all weather related information for your planning purposes.

Joint Base Pearl Harbor-Hickam Weather


If you like warm tropical weather year round, you’ve hit the jackpot with a Hawai’i posting. Keep this page handy when preparing to make your move to Joint Base Pearl Harbor-Hickam. Remember to do your best to take care of yourself by preparing for hot and cold weather conditions before stepping off on any field exercises or operations. Planning, preparation, and hydration in any climate or weather condition are key!


The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement.

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