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June Weather in Saint Helena, United States

Last updated: June 24, 2025

In June, the average temperature in Saint Helena, United States reaches a comfortable 22°C (72°F). However, be prepared for temperature fluctuations, as lows can dip to 9°C (49°F), while highs can soar up to 42°C (107°F). With only 2 mm (0.1 in) of precipitation spread over 0 days, you can expect mostly dry weather. Don't forget, the average humidity sits at a sticky 76%, making it an essential factor to consider for your plans!

June Temperature in Saint Helena

In June in Saint Helena, the average temperature is 22°C (72°F), with maximums reaching up to 42°C (107°F) and minimums dropping as low as 9°C (49°F). This variation makes Saint Helena an ideal destination for travelers seeking to experience both warm days and cooler evenings.

June Weather in Saint Helena: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Saint Helena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Helena, June typically has an average temperature of 22°C (72°F), with highs reaching up to 42°C (107°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec495153586471737370645448
Data source: Temperature data for Saint Helena 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 Saint Helena

In Saint Helena in June, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

June Precipitation Trends in Saint Helena

The chart displays monthly precipitation patterns in Saint Helena, 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 Saint Helena, June typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec1371419239232102385195
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Saint Helena

In Saint Helena in June humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

June Average Humidity in Saint Helena

This chart illustrates the average monthly humidity levels in Saint Helena, 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 Saint Helena is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Saint Helena

In Saint Helena in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Saint Helena.

Maximum UV Index Levels in Saint Helena for June

The chart shows the monthly maximum UV Index (UVI) for Saint Helena 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 Saint Helena typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Saint Helena 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 Saint Helena Compares to Other Months

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

This table compares monthly weather conditions in Saint Helena, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)137 mm (5.4 inches)86%moderate
February Weather10°C (51°F)141 mm (5.6 inches)84%moderate
March Weather11°C (53°F)92 mm (3.6 inches)83%high
April Weather15°C (59°F)39 mm (1.5 inches)80%very high
May Weather18°C (64°F)23 mm (0.9 inches)80%very high
June Weather22°C (72°F)2 mm (0.1 inches)76%extreme
July Weather23°C (74°F)0 mm (0.0 inches)70%extreme
August Weather23°C (73°F)0 mm (0.0 inches)66%very high
September Weather21°C (71°F)2 mm (0.1 inches)68%very high
October Weather18°C (64°F)38 mm (1.5 inches)72%high
November Weather12°C (55°F)51 mm (2.0 inches)84%moderate
December Weather9°C (49°F)95 mm (3.7 inches)84%moderate

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