Climate snapshot for alpacas
96/100Alpaca climate comfort score
65°FAverage high, Jul
42°FAverage low, Feb
~0Days above 90°F (32°C) per year
~10Frost nights per year
40 inAnnual precipitation
2Barber pole worm months
9Hay bales / alpaca / year
Advantages
- Summers rarely reach heat-stress levels for alpacas
- Practically frost-free winters
- A long grazing season (11 months of grass growth)
- Short or no barber pole worm transmission season
- Low meningeal worm risk
Overall rating: 96/100 — Excellent on our alpaca climate comfort score. Climate type: Warm-summer Mediterranean (Köppen Csb).
Month-by-month climate
Average highAverage lowPrecipitation
| Month | High | Low | Precip. | Heat-stress index | Notes |
|---|---|---|---|---|---|
| Jan | 62°F | 44°F | 2.4 in | 146 · ok | grass |
| Feb | 55°F | 42°F | 5.2 in | 140 · ok | grass |
| Mar | 58°F | 44°F | 4.2 in | 143 · ok | grass |
| Apr | 58°F | 44°F | 5.3 in | 143 · ok | grass |
| May | 59°F | 46°F | 3.9 in | 146 · ok | grass |
| Jun | 62°F | 46°F | 1.2 in | 147 · ok | grass |
| Jul | 65°F | 49°F | 3.1 in | 148 · ok | worms, grass |
| Aug | 65°F | 49°F | 6.9 in | 151 · ok | worms, grass |
| Sep | 63°F | 48°F | 2.3 in | 153 · ok | grass |
| Oct | 64°F | 48°F | 1.8 in | 151 · ok | grass |
| Nov | 61°F | 47°F | 3.4 in | 146 · ok | grass |
| Dec | 61°F | 46°F | 0.5 in | 145 · ok | — |
Heat-stress index = average high (°F) + mean humidity (%). “Worms” marks months that suit barber pole worm transmission; “grass” marks the grazing season; “frost” marks months with average lows below freezing. Source: Open-Meteo ERA5 reanalysis (2023-2024).
Alpaca care calendar for Hawaii County, Hawaii
January 62° / 44°F
- Book your shearer now — spring calendars fill up fast.
- Cria season: check due dates daily, ensure crias nurse within 4 hours, dip navels and weigh crias daily for two weeks.
- Spring grass: switch from hay to pasture gradually over 1–2 weeks and monitor body condition.
- Toenail check and trim.
February 55° / 42°F
- Cria season: check due dates daily, ensure crias nurse within 4 hours, dip navels and weigh crias daily for two weeks.
- Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).
March 58° / 44°F
- Shearing month: shear the whole herd, and trim toenails, check teeth and body condition while animals are restrained.
- Cria season: check due dates daily, ensure crias nurse within 4 hours, dip navels and weigh crias daily for two weeks.
- Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).
- Toenail check and trim.
April 58° / 44°F
- Cria season: check due dates daily, ensure crias nurse within 4 hours, dip navels and weigh crias daily for two weeks.
- Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).
May 59° / 46°F
- Breeding window for next year's crias (rebreed females 2–4 weeks after birthing).
- Toenail check and trim.
June 62° / 46°F
- Run pre-season fecal egg counts so you know each animal's baseline.
July 65° / 49°F
- Barber pole worm season: fecal egg counts every 4–6 weeks, check eyelid color, pick up dung piles twice a week.
- Toenail check and trim.
August 65° / 49°F
- Barber pole worm season: fecal egg counts every 4–6 weeks, check eyelid color, pick up dung piles twice a week.
September 63° / 48°F
- Fly season: clean dung piles regularly and use traps around the barn.
- Toenail check and trim.
October 64° / 48°F
- Fly season: clean dung piles regularly and use traps around the barn.
November 61° / 47°F
- Secure winter hay: about 9 small square bales per alpaca per year here — test a sample before buying.
- Toenail check and trim.
December 61° / 46°F
- CDT boosters for females due next month; prepare a clean birthing paddock and birthing kit.
Key recommendations
- Shearing: March.
- Best months for crias to be born: Jan–Apr (breed in Feb–May).
- Heat precautions: rarely needed — still provide shade and water.
- Barber pole worm season: Jul–Aug — run fecal egg counts every 4–6 weeks in these months.
- Winter: frost is rare.
- Vitamin D: winter sunlight is usually adequate at this latitude; ask your vet about dark-fleeced crias.
- Grazing season: Jan–Nov (about 11 months); feed hay the rest of the year.
- Meningeal worm: Meningeal worm is not established in this region.
- Selenium: Selenium levels vary across the state. Test hay or blood before changing supplements.
Tools: heat-stress calculator · winter hay calculator · due-date calculator · parasite control guide.
Alpaca farms & shops nearby
No alpaca farms near Hawaii County, Hawaii are mapped on OpenStreetMap yet. If you keep alpacas here, consider adding your farm to OpenStreetMap — it will appear on this page after the next update.
Frequently asked questions
Can you raise alpacas in Hawaii County, Hawaii?
Yes. Alpacas are kept successfully in most climates with good management. Hawaii County, Hawaii scores 96/100 (excellent) on our alpaca climate comfort scale.
When should alpacas be shorn in Hawaii County, Hawaii?
Plan shearing for March, once nights stay above about 38°F (3°C) but before summer heat builds.
What is the best time for crias to be born in Hawaii County, Hawaii?
Mild months suit newborn crias best — here that is Jan–Apr. For births then, breed females in Feb–May (gestation is about 335 days).
How much hay does an alpaca need per year in Hawaii County, Hawaii?
With roughly 1 months of little or no grazing, plan on about 432 lb (196 kg) — around 9 small square bales — per adult alpaca per year, plus waste.
Coordinates 19.598, -155.502 · land area 4,028 sq mi. Long-term averages, not forecasts. See methodology and data sources. Back to Hawaii.