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June Weather in San Sebastian, Mexico

Last updated: August 27, 2025

In San Sebastian, Mexico, the average temperature in June reaches a balmy 29°C (84°F), with lows around 21°C (70°F) and highs peaking at a scorching 41°C (106°F). With 153 mm (6.0 in) of precipitation expected over 19 days, the month brings considerable moisture along with an average humidity of 79%. Be prepared for a warm and wet adventure!

June Temperature in San Sebastian

In June in San Sebastian, the average temperature is 29°C (84°F). The maximum can reach 41°C (106°F), while the minimum can drop as low as 21°C (70°F). Travelers should be prepared for hot weather and plan their activities accordingly.

June Weather in San Sebastian: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in San Sebastian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian, June typically has an average temperature of 29°C (84°F), with highs reaching up to 41°C (106°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec677075818584848582797268
Data source: Temperature data for San Sebastian 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 San Sebastian

In San Sebastian in June, the precipitation amount is 153 mm (6.0 in) over the course of 19 days.

June Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, 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 San Sebastian, June typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec573141561061531141161672346326
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in San Sebastian

In San Sebastian in June, humidity is 79%. With an average temperature of 29°C (84°F), this humidity feels like a steamy blanket enveloping you, making every step feel heavier and more labored, which can be quite challenging for traveling.

June Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, 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 San Sebastian is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in San Sebastian

In San Sebastian in June, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Sebastian.

Maximum UV Index Levels in San Sebastian for June

The chart shows the monthly maximum UV Index (UVI) for San Sebastian 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 San Sebastian typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710121212131312121187
Data source: San Sebastian 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 San Sebastian Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (67°F)57 mm (2.3 inches)88%high
February Weather21°C (70°F)31 mm (1.2 inches)86%very high
March Weather24°C (75°F)41 mm (1.6 inches)83%extreme
April Weather27°C (81°F)56 mm (2.2 inches)80%extreme
May Weather29°C (85°F)106 mm (4.2 inches)82%extreme
June Weather29°C (84°F)153 mm (6.0 inches)79%extreme
July Weather29°C (84°F)114 mm (4.5 inches)72%extreme
August Weather29°C (85°F)116 mm (4.6 inches)74%extreme
September Weather28°C (83°F)167 mm (6.6 inches)84%extreme
October Weather26°C (79°F)234 mm (9.2 inches)92%extreme
November Weather22°C (73°F)62 mm (2.5 inches)91%very high
December Weather20°C (69°F)26 mm (1.0 inches)91%high

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