Tachikawa, Japan Pollen Count
Tachikawa, Japan · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Tachikawa — from Friday, November 6, 2026 (1 day ago) — not today's reading.
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).
Tachikawa, Japan
Weeds Index
How active weeds pollen is today (0–100).
Tachikawa, Japan
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Tachikawa Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Tachikawa residents check each morning
The Tachikawa pollen count today is 28 (Low). The main driver is Ragweed, with weed pollen at 33 today. That total sits on a narrow base: weed pollen is 33 while tree pollen is just 20 and grass pollen 3. Plant-by-plant detail for Tachikawa, Japan follows, along with the outlook for the days ahead. Pollen Atlas updated this count on Friday, November 6, 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 Tachikawa 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 Tachikawa pollen forecast below — it is currently mixed, with Friday the highest day in the window.
This is the pollen count Tachikawa residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Tachikawa pollen count today?
The Tachikawa pollen count today is 28 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Tachikawa: this page is updated every morning with the day’s modelled reading.
Tachikawa allergies today
Tachikawa allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 28 (Low), driven mainly by Ragweed. When people ask about Tachikawa allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Tachikawa.
Allergies in Tachikawa follow the Japan 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 Tachikawa 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 Tachikawa allergy forecast: today reads 28 (Low), and the day-by-day outlook shows whether Tachikawa 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 Tachikawa today records is this same combined reading — tree, grass, weed and mold in one index.
The Tachikawa allergy count today is 28 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Tachikawa: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 28 | Low |
| Saturday, November 7 | 20 | Low |
| Sunday, November 8 | 27 | Low |
| Monday, November 9 | 27 | Low |
| Tuesday, November 10 | 27 | Low |
Pollen Atlas forecasts Tachikawa’s pollen count to peak on Friday at 28 (Low) over the next 5 days.
Pollen by type in Tachikawa
What is driving Tachikawa’s pollen today
The shape of today’s 28 (Low) is set by weed pollen at 33 (Low on its own scale) — about 59% of the four category readings added together, 13 points clear of the next category, tree pollen at 20. 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 a modelled reading, reported as modelled — no regional calendar is asserted for Japan, and the modelled value outranks any general seasonal expectation.
Plant-level detail is not in today’s feed for Tachikawa, so the drivers have to be read from the category split above — it shows how much of today’s total each category is actually carrying, and plant detail returns here automatically on any day the feed includes it.
Across the five-day window the Total Pollen Index runs from 20 to 28, never changing band. Today’s 28 sits 2 points above the window’s average of 25.8 — a moving window, worth reading day by day rather than from the average.
Plants affecting Tachikawa now
Detailed plant-by-plant readings for Tachikawa 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 20 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 3 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 33 (Low).
In the Global pattern, the plants that shape this city’s year vary with its local climate and vegetation, and no single regional calendar is published for this area — 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.
Tachikawa pollen through the year
Chapter by chapter, the Tachikawa pollen year runs like this:
- Tree pollen seasons vary with local climate and vegetation, so this page reports the measured readings first and treats any calendar as background only.
- Grass pollen seasons vary with local climate and vegetation, and the measured value outranks any general seasonal expectation.
- Weed pollen seasons vary with local climate and vegetation, and no regional calendar is asserted for this area.
No Japan allergy season guide is published yet, so this page does not single out signature pollens for Tachikawa — the calendar above is the Global regional pattern, and the plant detail on this page names what today’s feed actually records.
November in Tachikawa is reported from its modelled readings, not from a regional calendar — no regional calendar is asserted for Japan, so the calendar alone explains little today, and the modelled split above carries the story. No Japan allergy season guide is published yet — this calendar follows the Global regional pattern. See Tachikawa pollen count rankings and Tachikawa on the pollen heatmap.
How to read this index
Pollen Atlas reports the Tachikawa 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 Tachikawa, Japan 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.
Tachikawa in today’s national picture
At 28 (Low), Tachikawa ranks joint 21058th 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 Tachikawa: Hino, Japan (4 km away) reads 28 (Low); Kodaira, Japan (6 km away) reads 23 (Low); Fuchū, Japan (7 km away) reads 23 (Low). Tachikawa reads exactly level with its nearest tracked neighbour today. Across Japan’s 131 tracked cities, today runs from 5 in Sapporo to 31 in Kawagoe.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Tachikawa resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Tachikawa, Japan 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.
Tachikawa in its local area
Tachikawa is in Tachikawa Shi, Tokyo, Japan. Its population is 183,581 (GeoNames).
Across Japan’s 131 tracked cities, Tachikawa ranks joint 2nd today.
Like every Pollen Atlas city page, the Tachikawa, Japan pollen count is refreshed each morning.
Nearby cities
- Hino pollen count (4 km away)
- Kodaira pollen count (6 km away)
- Fuchū pollen count (7 km away)
- Hachiōji pollen count (10 km away)
- Nishi-Tokyo-shi pollen count (11 km away)
- Tokorozawa pollen count (11 km away)
From Pollen Atlas News
See how Tachikawa 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).