Pearl City, HI Pollen Count Today
Pearl City, HI · Updated Saturday, November 7, 2026
Pollen Overview
Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).
Total Pollen Index
The combined pollen level across all types (0–100).
Pearl City, HI
Weeds Index
How active weeds pollen is today (0–100).
Pearl City, HI
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Pearl City Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Pearl City residents check each morning
The Pearl City pollen count today is 15 (Low). The main driver is Ragweed, with weed pollen at 16 today. Weed pollen leads the split at 16 (Low on its own scale), followed by tree pollen at 13 and grass pollen at 13. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Saturday, November 7, 2026.
A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Pearl City page.
Fall is ragweed season across most of the United States: ragweed plants release pollen from late summer into autumn, and weed pollen is typically the last major outdoor pollen category to fade as the weather cools. That pattern is why an autumn total is so often weed-led even when the headline number is low — tree and grass pollen have usually receded by then, leaving weed pollen, and on damp days mold, to make up most of what the index records.
To see whether today’s pollen level holds, check the 5-day Pearl City pollen forecast below — it is currently holding, with Wednesday the highest day in the window.
This is the pollen count Pearl City residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Pearl City pollen count today?
The Pearl City pollen count today is 15 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Pearl City: this page is updated every morning with the day’s modelled reading.
Pearl City allergies today
Pearl City allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 15 (Low), driven mainly by Ragweed. When people ask about Pearl City allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Pearl City.
Allergies in Pearl City follow the Hawaii calendar set out below — the chapters, the plants behind them, and the 5-day forecast on this page show whether today is typical for the season or an exception to it. If you are checking allergies today in Pearl City before heading outdoors, the split at the top of this page is the part to read: it shows which pollen is doing the work today, not just how high the total sits.
Read the five-day table on this page as the Pearl City allergy forecast: today reads 15 (Low), and the day-by-day outlook shows whether Pearl City allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.
In practice, the allergy count Pearl City today records is this same combined reading — tree, grass, weed and mold in one index.
The Pearl City allergy count today is 15 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Pearl City: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 15 | Low |
| Sunday, November 8 | 15 | Low |
| Monday, November 9 | 15 | Low |
| Tuesday, November 10 | 15 | Low |
| Wednesday, November 11 | 22 | Low |
Pollen Atlas forecasts Pearl City’s pollen count to peak on Wednesday at 22 (Low) over the next 5 days.
Pollen by type in Pearl City
What is driving Pearl City’s pollen today
The shape of today’s 15 (Low) is set by weed pollen at 16 (Low on its own scale) — about 38% of the four category readings added together, 3 points clear of the next category, tree pollen at 13. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November is the Hawaii calendar working as expected — November falls in the opening weeks of the state’s weed chapter.
Plant-level detail is not in today’s feed for Pearl City, so the drivers have to be read from the category split above. The Hawaii guide’s account of Hawaii names kiawe, flowering most heavily in late winter and spring, and grasses that pollinate in nearly every month — the pollens behind readings of this shape in this state — and the split shows how much of today’s total each category is actually carrying.
Across the five-day window the Total Pollen Index runs from 15 to 22, never changing band. Today’s 15 sits 1 point below the window’s average of 16.4 — a moving window, worth reading day by day rather than from the average.
Plants affecting Pearl City now
Detailed plant-by-plant readings for Pearl City were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.
Tree pollen is one of the categories with a non-zero reading today, at 13 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 13 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 16 (Low).
In the Hawaii pattern, the plants that typically shape this city’s year are grasses that pollinate in nearly every month and kiawe flowering most heavily in late winter and spring, with mold in the wet season — named here as regional context only, not as today\u2019s measurements.
Plant detail returns here automatically on any day the source data includes it.
Every pollen type, with photos and seasons: the pollen directory.
Pearl City pollen through the year
Three chapters make the Hawaii pollen year, and Pearl City follows them in the state’s own order. The tree chapter: kiawe, the signature tree of the dry leeward lowlands, flowers most heavily in late winter and spring, in overlapping waves rather than a single spring flush. The grass chapter: grasses pollinate in nearly every month, with the strongest run from spring into summer and a peak from March through August. The weed chapter: the guides name no separate weed chapter for Hawaii — the year is carried by grasses, tree waves and wet-season mold. The wet season, roughly November through April, shifts the burden toward mold and indoor damp even as outdoor pollen eases in places.
Hawaii has no frost and no true off-season: grasses pollinate in nearly every month, with the strongest grass run from spring into summer. Windward towns trade some dry pollen for persistent damp and mold, while leeward towns trade mold for dust, grass pollen and, on Hawaii Island, vog. The Hawaii guide singles out kiawe, flowering most heavily in late winter and spring, and grasses that pollinate in nearly every month.
November in Pearl City sits in the overlap of the grass and weed chapters of the Hawaii year — overlap weeks, when two chapters feed the same total and the split matters more than the headline. Between them, the three chapters touch every month of the Hawaii year — there is no reliably empty month in this calendar. The full calendar is set out in the Hawaii allergy season guide.
How to read this index
Pollen Atlas reports the Pearl City pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down even in a month when Pearl City, HI pollen is usually more active. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.
Pearl City in today’s national picture
At 15 (Low), Pearl City ranks joint 68240th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Pearl City: Waimalu, HI (2 miles away) reads 14 (Low); Aiea, HI (2 miles away) reads 14 (Low); Waipio, HI (3 miles away) reads 15 (Low). Pearl City reads 1 point higher than its nearest tracked neighbour today. Across Hawaii’s 163 tracked cities, today runs from 7 in Honaunau-Napoopoo to 25 in Waikoloa Village.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Pearl City resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Pearl City, HI can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.
Pearl City in its local area
Pearl City is a census-designated place in Honolulu County, Hawaii. Its population is 45,079 (ACS 2023).
Across Hawaii’s 163 tracked cities, Pearl City ranks joint 40th today.
Like every Pollen Atlas city page, the Pearl City, HI pollen count is refreshed each morning.
Nearby cities
- Waimalu pollen count (2 miles away)
- Aiea pollen count (2 miles away)
- Waipio pollen count (3 miles away)
- Halawa pollen count (3 miles away)
- Waikele pollen count (3 miles away)
- Waipahu pollen count (4 miles away)
From Pollen Atlas News
See how Pearl City ranks in today's pollen count rankings — the worst cities for allergies today
Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).