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June Weather in San Sebastian, Mexico

Last updated: August 27, 2025

In San Sebastian, Mexico, the average temperature in June hovers around 21°C (70°F). Expect a comfortable range with minimums dipping to 14°C (58°F) and maximums reaching up to 33°C (91°F). However, be prepared for a wet spell, as the area receives an average precipitation of 383 mm (15.1 in) over 28 days, accompanied by 80% average humidity.

June Temperature in San Sebastian

In June in San Sebastian, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 14°C (58°F). This delightful temperature range makes it an ideal time to explore the area and enjoy outdoor activities.

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 21°C (70°F), with highs reaching up to 33°C (91°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec636670727370696868686563
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 total precipitation amount is 383 mm (15.1 in) spread over a period of 28 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 383 mm (15.1 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec131312383384480557502266668
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 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%65%59%60%67%80%81%83%83%80%77%76%
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 is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Sebastian, you can check here.

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 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911141414141313141198
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 Weather17°C (63°F)13 mm (0.5 inches)70%very high
February Weather19°C (66°F)13 mm (0.5 inches)65%extreme
March Weather21°C (70°F)12 mm (0.5 inches)59%extreme
April Weather22°C (72°F)3 mm (0.1 inches)60%extreme
May Weather23°C (74°F)83 mm (3.3 inches)67%extreme
June Weather21°C (70°F)383 mm (15.1 inches)80%extreme
July Weather20°C (69°F)480 mm (18.9 inches)81%extreme
August Weather20°C (69°F)557 mm (21.9 inches)83%extreme
September Weather20°C (68°F)502 mm (19.8 inches)83%extreme
October Weather20°C (68°F)266 mm (10.5 inches)80%extreme
November Weather18°C (66°F)66 mm (2.6 inches)77%very high
December Weather17°C (63°F)7 mm (0.3 inches)76%very high

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