Do I need a jacket in Hilo in April?

Probably not for daytime — highs average around 80°F. A light layer for air-conditioned interiors is enough.

Is April rainy in Hilo?

Expect roughly 17 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.

How hot does Hilo get in April?

Daytime highs average around 80°F. Lean toward breathable fabrics like cotton and linen, and bring sun protection.

April Packing List for Hilo – What to Wear & Bring

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Essentials

If you only pack a few things, pack these.

Breathable topsEssential
With average highs of 80°F, breathable fabrics are essential for staying cool in Hilo's tropical rainforest humidity.
Quick-dry shortsEssential
Quick-dry shorts are ideal for the humid jungle trails at Akaka Falls given that April sees 17 precipitation days.
Closed-toe hiking shoesEssential
Closed-toe shoes are mandatory for Hawaii Volcanoes National Park's lava rock terrain, especially during any of the 17 precipitation days in April.
Compact umbrellaEssential
A compact umbrella is a must since Hilo expects roughly 17 precipitation days in April within its tropical rainforest climate.
Waterproof shellEssential
A lightweight waterproof shell is essential to handle the 17 precipitation days expected in Hilo this month.
Reusable water bottleEssential
A reusable water bottle is essential for staying hydrated during Hilo's warm 80°F afternoons.

Clothing

Breathable topsEssential
With average highs of 80°F, breathable fabrics are essential for staying cool in Hilo's tropical rainforest humidity.
Quick-dry shortsEssential
Quick-dry shorts are ideal for the humid jungle trails at Akaka Falls given that April sees 17 precipitation days.
Lightweight sweaterRecommended
A light sweater is necessary to handle the 63°F evening lows or if you travel to higher elevations near Mauna Kea.

Footwear

Closed-toe hiking shoesEssential
Closed-toe shoes are mandatory for Hawaii Volcanoes National Park's lava rock terrain, especially during any of the 17 precipitation days in April.
Waterproof sandalsRecommended
Waterproof sandals are perfect for walking through Hilo's downtown area when it rains on any of the 17 expected precipitation days.
Lightweight trainersRecommended
Lightweight trainers are best for flat, walkable areas like the Hilo Farmers Market during the warm 80°F afternoons.

Accessories

Compact umbrellaEssential
A compact umbrella is a must since Hilo expects roughly 17 precipitation days in April within its tropical rainforest climate.
Wide-brimmed hatRecommended
A wide-brimmed hat is essential for sun protection at Rainbow Falls during Hilo's warm 80°F days.
Lightweight daypackRecommended
A lightweight daypack is useful for carrying extra layers as Hilo's 63°F lows require more coverage than the daytime highs.

Gear

Waterproof shellEssential
A lightweight waterproof shell is essential to handle the 17 precipitation days expected in Hilo this month.
Dry bagRecommended
A dry bag is highly recommended to protect your electronics from the 17 expected rainy days in Hilo.
Reusable water bottleEssential
A reusable water bottle is essential for staying hydrated during Hilo's warm 80°F afternoons.

Local tips for Hilo in April

Always carry a light waterproof layer when visiting Hawaii Volcanoes National Park to handle sudden tropical downpours.

Avoid wearing sandals if you plan on hiking near lava rocks; stick to closed-toe shoes for safety and durability.

Prepare for temperature swings by packing layers, as Hilo's warm coast contrasts sharply with the cold summit of Mauna Kea.

FAQ — Hilo in April

Probably not for daytime — highs average around 80°F. A light layer for air-conditioned interiors is enough.
Expect roughly 17 days of rain across the month. Pack a compact umbrella and shoes that can handle wet pavement.
Daytime highs average around 80°F. Lean toward breathable fabrics like cotton and linen, and bring sun protection.
Avoid wearing sandals if you plan on hiking near lava rocks; stick to closed-toe shoes for safety and durability. See our full shoe picks for April: full shoe guide →

More tools for Hilo in April

What to wear

Outfit ideas for Hilo in April →

Layering looks and style guidance matched to the month's weather.

Best shoes

Shoe picks for April →

Waterproof, breathable, insulated — matched to the month.

Pack or skip

Umbrella? Winter coat? Sunscreen? →

Item-by-item verdict for April.

Comfort check

Will I be cold or hot? →

Day and night temp bands for April.

Packing tools

Decide jackets, outfits, shoes, and bag fees for Hilo in April

Free calculators — city and month pre-filled when we know them. No account required. Start with how many outfits, sudoku packing, or bag fees.

Trip

Planning a trip to one city?

One city → typical weather for your month, packing counts that fit your bags, and email your plan.

Outfits

How many outfits for this trip?

Trip length, bag size, and climate → exact tops, bottoms, layers, and outfit combinations.

Jacket

Not sure about a jacket?

City + month → base / mid / shell stack and pack-or-skip verdicts for rain jacket, coat, and thermals.

Shoes

Shoes for this climate?

Climate, activities, and bag size → pair count, primary/backup types, and climate-matched picks.

Bags

Will this trip cost bag fees?

Airline + fare bucket + bags you plan to bring → fit verdicts and typical carry-on / checked fee ranges.

Capsule

Try sudoku packing for this climate?

City + month → climate-ready 3 tops / 3 bottoms / 3 layers you can edit — up to 27 mix-and-match outfits.

All packing tools

April Packing List for Hilo — What to Wear & Bring

Hotels in Hilo