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Dataset · Tabular regression

weather_forecast_japan

by Junichiro Niimi jniimi/weather_forecast_japan

This dataset contains daily-collected weather forecasts for up to seven days ahead for all the meteorological observatories in Japan, published by the Japan Meteorological Agency (JMA) at https://www.jma.go.jp/bosai/forecast/.

Rows816,134
Configurations1
Size5.7 MB
Licensecc-by-4.0
AccessPublicly accessible
Monthly Downloads1.2k

Dataset Card

By Junichiro Niimi, published under cc-by-4.0, revision 87de69a3016b.

Overview

This dataset contains daily-collected weather forecasts for up to seven days ahead for all the meteorological observatories in Japan, published by the Japan Meteorological Agency (JMA) at https://www.jma.go.jp/bosai/forecast/. We collect, structurize, and accumulate the prediction since the page is overridden whenever the information is updated.

The data is automatically updated daily using GitHub Actions. Since the actual forecasts are published multiple times a day, we set up the column from_hour which represetnts the announced time.

Further details are also available at note.com/jniimi/n/n06d3423bbbbf (Japanese only).

Usage

This dataset can be utilized across a wide range of research fields. While it is primarily valuable in the natural sciences, it can also be applied to social sciences, such as the behavioral modeling and prediction.

You can refer the sample usage with following open in colab link: weather_forecast_example.ipynb, hosted on Gist.

Notes

  • No train-test split: All the data is contained in train section.
  • datetime in JST: All date and time variables are displayed in Japan Standard Time (JST: UTC+9).
  • To account for potential outliers (like disasters), all columns are stored as strings.
  • Please adhere to the original source's rules when using this data.
  • We do not take responsibility for any missing data or inaccuracies.

Citation

If you use this dataset for anything, please consider citing (or displaying) the following reference. Don't forget to mention JMA, also.

@misc{jniimi2024weather,
    title = "7days Weather Forecast in Japan (Dataset)",
    author = "Junichiro Niimi",
    year = {2024},
    howpublished = {\url{https://huggingface.co/datasets/jniimi/weather_forecast_japan}},
    }

Structure

default 816,134 rows

SplitRowsSize
train816,13412.5 MB
from_datestringfrom_hourstringdiff_daysstringtarget_datestringtarget_placestringweatherstringrainstringconfidencestringloweststringhigheststringobservatory_namestringobservatory_codestringhtml_obtained_datetimestring__index_level_0__int64

Details

Repository
jniimi/weather_forecast_japan
Publisher
Junichiro Niimi
Task category
Tabular regression
Tags
climate
Size category
10K<n<100K
Languages
ja, en
Revision
87de69a3016b1cffe188b78a0135d3d03e490742
Last updated
2026-09-28

Files

3 files, 5.7 MB in total.

Data1 file · 5.7 MB
Documentation1 file · 3.0 KB
Repository1 file · 2.4 KB
Every file
FileTypeSizeSHA-256
data/train-00000-of-00001.parquetData5.7 MB8128e9b4c6b6
README.mdDocumentation3.0 KB—
.gitattributesRepository2.4 KB—

License and Download

License
cc-by-4.0
Access
No access gate
Download from Junichiro Niimi

Released by Junichiro Niimi through its official repository on Hugging Face. Read the license.