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June Weather in Si'en, China

Last updated: August 22, 2025

In June, the average temperature in Si'en, China is a pleasant 27°C (80°F), with temperatures ranging from a minimum of 18°C (65°F) to a cozy maximum of 34°C (94°F). However, be prepared for some rain, as the region experiences an average precipitation of 429 mm (16.9 in) spread over 26 days. The air can feel quite humid too, with an average humidity level of 87%, making it essential to stay hydrated during your visit!

June Temperature in Si'en

In June in Si'en, the average temperature is 27°C (80°F). Maximums can reach 34°C (94°F), and minimums can be as low as 18°C (65°F). This pleasant climate makes it an ideal time for traveling to enjoy outdoor adventures and sightseeing.

June Weather in Si'en: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Si'en, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Si'en, June typically has an average temperature of 27°C (80°F), with highs reaching up to 34°C (94°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec525463697680828280706354
Data source: Temperature data for Si'en 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 Si'en

In Si'en in June, the precipitation amount is 429 mm (16.9 in) over the course of 26 days.

June Precipitation Trends in Si'en

The chart displays monthly precipitation patterns in Si'en, 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 Si'en, June typically receives around 429 mm (16.9 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec80941841912924292582611701319056
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Si'en

In Si'en in June humidity is 87%. With an average temperature of 27°C (80°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and challenging for traveling.

June Average Humidity in Si'en

This chart illustrates the average monthly humidity levels in Si'en, 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 Si'en is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%67%70%67%84%87%89%86%66%66%69%68%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Si'en

In Si'en in June, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Si'en.

Maximum UV Index Levels in Si'en for June

The chart shows the monthly maximum UV Index (UVI) for Si'en 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 Si'en typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111113121313111086
Data source: Si'en 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 Si'en Compares to Other Months

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

This table compares monthly weather conditions in Si'en, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)80 mm (3.1 inches)59%high
February Weather12°C (55°F)94 mm (3.7 inches)67%very high
March Weather17°C (63°F)184 mm (7.2 inches)70%extreme
April Weather20°C (69°F)191 mm (7.5 inches)67%extreme
May Weather24°C (76°F)292 mm (11.5 inches)84%extreme
June Weather27°C (80°F)429 mm (16.9 inches)87%extreme
July Weather28°C (83°F)258 mm (10.1 inches)89%extreme
August Weather28°C (83°F)261 mm (10.3 inches)86%extreme
September Weather27°C (80°F)170 mm (6.7 inches)66%extreme
October Weather21°C (71°F)131 mm (5.1 inches)66%very high
November Weather17°C (63°F)89 mm (3.5 inches)69%very high
December Weather12°C (54°F)56 mm (2.2 inches)68%high

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