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June Weather in Nagaoka, Japan

Last updated: August 23, 2025

In June, the average temperature in Nagaoka, Japan is a comfortable 21°C (71°F). However, temperatures can range from a chilly 11°C (51°F) to a warm 34°C (93°F). Be prepared for some rain, as the region sees an average precipitation of 108 mm (4.3 in) over 13 days. With an average humidity of 88%, it’s a good idea to stay hydrated and enjoy the vibrant atmosphere!

June Temperature in Nagaoka

In June in Nagaoka, the average temperature is 21°C (71°F). Maximums can reach 34°C (93°F), while minimums can drop to as low as 11°C (51°F). This mild climate makes it an ideal destination for travelers seeking pleasant weather and a variety of outdoor activities.

June Weather in Nagaoka: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Nagaoka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagaoka, June typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec363745536471798173625141
Data source: Temperature data for Nagaoka generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Nagaoka

In Nagaoka in June, the precipitation amount is 108 mm (4.3 in), occurring over a span of 13 days.

June Precipitation Trends in Nagaoka

The chart displays monthly precipitation patterns in Nagaoka, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Nagaoka, June typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec165138130114110108283186151158139204
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Nagaoka

In Nagaoka in June humidity is 88%. With an average temperature of 21°C (71°F), this humidity feels like a thick blanket enveloping you, making even the simplest activities feel laborious and sweaty for traveling.

June Average Humidity in Nagaoka

This chart illustrates the average monthly humidity levels in Nagaoka, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Nagaoka is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Nagaoka

In Nagaoka in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Nagaoka.

Maximum UV Index Levels in Nagaoka for June

The chart shows the monthly maximum UV Index (UVI) for Nagaoka in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Nagaoka typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3479101011119643
Data source: Nagaoka June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How June Weather in Nagaoka Compares to Other Months

Weather in Nagaoka varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Nagaoka, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Nagaoka, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)165 mm (6.5 inches)88%moderate
February Weather3°C (38°F)138 mm (5.4 inches)86%moderate
March Weather7°C (45°F)130 mm (5.1 inches)81%high
April Weather12°C (53°F)114 mm (4.5 inches)78%very high
May Weather18°C (64°F)110 mm (4.3 inches)81%very high
June Weather21°C (71°F)108 mm (4.3 inches)88%very high
July Weather26°C (79°F)283 mm (11.2 inches)92%extreme
August Weather27°C (82°F)186 mm (7.3 inches)92%extreme
September Weather23°C (73°F)151 mm (5.9 inches)89%very high
October Weather17°C (63°F)158 mm (6.2 inches)87%high
November Weather11°C (52°F)139 mm (5.5 inches)85%moderate
December Weather5°C (41°F)204 mm (8.0 inches)86%moderate

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