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City guide · Hawaii

Outdoor Project Weather in Kailua, HI

One forecast, six label checks. Today's verdict for every task in Kailua loads above; the matrix below shows the whole year at a glance, computed from NOAA 1991–2020 normals at Waimanalo Exp F 795.1, Hi Us. The friendliest calendar here belongs to lawn seeding (324 workable days a year).

Six tasks · one forecast · Hawaii

MayBest overall month
Lawn SeedingFriendliest task
1,304 task-daysWorkable task-days/yr
6Tasks tracked
Average of all six tasks

Today at a glance

Verdicts load live from the 10-day forecast; without JavaScript this column stays blank and the year-round matrix below still answers the planning question.
Task	Today	Best months here	Full 10-day check
Deck Staining	—	May, Jun, Aug	Stain a Deck in Kailua →
Exterior Painting	—	May, Jun, Aug	Paint Outside in Kailua →
Driveway Sealing	—	May, Jun, Aug	Seal a Driveway in Kailua →
Concrete Pouring	—	May, Jun, Aug	Pour Concrete in Kailua →
Roof Coating	—	May, Jun, Aug	Coat a Roof in Kailua →
Lawn Seeding	—	Jan, Mar, May	Seed a Lawn in Kailua →

Keep the tour going — compare this calendar with Honolulu, HI behind you or Boise, ID up next.

Project weather, month by month

Workable days per month by task, from NOAA 1991–2020 normals for WAIMANALO EXP F 795.1, HI US. Darker = more workable days.
Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deck Staining	15	15	16	17	19	18	17	18	17	17	14	13
Exterior Painting	15	15	16	17	19	18	17	18	17	17	14	13
Driveway Sealing	15	15	16	17	19	18	17	18	17	17	14	13
Concrete Pouring	15	15	16	17	19	18	17	18	17	17	14	13
Roof Coating	15	15	16	17	19	18	17	18	17	17	14	13
Lawn Seeding	31	29	31	30	31	30	31	18	1	31	30	31

Which task gets the most weather in Kailua?

Lawn Seeding324days/yr
Deck Staining196days/yr
Exterior Painting196days/yr
Driveway Sealing196days/yr
Concrete Pouring196days/yr
Roof Coating196days/yr

The composite season in Kailua opens around October and closes after August: coatings wait on warm nights, concrete on freeze-free 48-hour stretches, seeding on the 55–80°F germination band. Between those bookends, the right question is which task fits this week — which is what the verdicts above answer.

Deepest calendar first: start with lawn seeding in Kailua (324 workable days a year), then work down the matrix.

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Full 10-day checks

Hawaii

Climatology: NOAA 1991–2020 normals via WAIMANALO EXP F 795.1, HI US (6.9 km from Kailua center); live outlook by Open-Meteo.