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Free Download of Pollen Count Data
Weathernews' Pollen Robo, a pollen observation device developed in-house,
observes and analyzes pollen count data,
available for free download.
Download CSV
1. Select a city in Japan
2. Select a period
About data format
| Parameter | Name | Example | Notes |
|---|---|---|---|
| citycode | City code | 13103 | List |
| date | Date/time | 2025-02-03T12:00:00+09:00 | ISO8601 format |
| pollen | Pollen count | 30 | count/cm^2 (missing value -9999) |
Data Range
| Year | Period |
|---|---|
| 2022 | 2/3 - 7/3 |
| 2023 | 2/7 - 7/30, 10/27 - 11/24 |
| 2024 | 1/16 - 7/24 |
| 2025 | 1/18 - 8/10 |
| 2026 | Mid-January - July (planned) |
Some dates may include missing values.
Get data via API
You can obtain pollen count data via API.
API ReferenceNotes on data usage
- This data can be downloaded for free, and results may be published in exhibitions or broadcasts. If you publish results, please clearly state that the data was observed by Weathernews' Pollen Robo. No reporting is required.
- If you plan commercial use or to publish results on the internet, please contact us.
- To ensure stable service, we may restrict access when excessive API usage is detected.
- We are not responsible for any damages arising from the use of this data.
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We can provide proposals tailored to your challenges, including specific use cases for WxTech Data. Please feel free to contact us with any pre-implementation questions or consultations.
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