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June Weather in Grand-Santi, French Guiana

Last updated: August 23, 2025

In June, the average temperature in Grand-Santi, French Guiana is a warm 26°C (78°F). Expect a minimum of 21°C (71°F) and a peak of 33°C (92°F) during this time. Be prepared for some rain, as the region sees about 317 mm (12.5 in) of precipitation over 27 days. With an average humidity of 86%, it’s a tropical experience that you won’t want to miss!

June Temperature in Grand-Santi

In June in Grand-Santi, the average temperature is 26°C (78°F). The maximum can reach 33°C (92°F), while the minimum can drop to as low as 21°C (71°F). This climate makes Grand-Santi an ideal destination for travelers seeking warm and pleasant weather.

June Weather in Grand-Santi: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Grand-Santi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grand-Santi, June typically has an average temperature of 26°C (78°F), with highs reaching up to 33°C (92°F) and lows dropping to around 21°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec777879787878788082828178
Data source: Temperature data for Grand-Santi 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 Grand-Santi

In Grand-Santi in June, the precipitation amount is 317 mm (12.5 in) over the course of 27 days.

June Precipitation Trends in Grand-Santi

The chart displays monthly precipitation patterns in Grand-Santi, 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 Grand-Santi, June typically receives around 317 mm (12.5 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec1381051292904613172481157638108213
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Grand-Santi

In Grand-Santi in June, humidity is 86%. With an average temperature of 26°C (78°F), this humidity feels like an overwhelming blanket that clings to your skin, making any outdoor activity feel more strenuous and causing you to seek shade and refreshment more often during your travels.

June Average Humidity in Grand-Santi

This chart illustrates the average monthly humidity levels in Grand-Santi, 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 Grand-Santi is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%66%66%66%68%86%76%65%62%63%74%79%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Grand-Santi

In Grand-Santi 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 Grand-Santi.

Maximum UV Index Levels in Grand-Santi for June

The chart shows the monthly maximum UV Index (UVI) for Grand-Santi 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 Grand-Santi typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516161412121313131312
Data source: Grand-Santi 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 Grand-Santi Compares to Other Months

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

This table compares monthly weather conditions in Grand-Santi, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)137 mm (5.4 inches)70%extreme
February Weather25°C (78°F)105 mm (4.1 inches)66%extreme
March Weather26°C (79°F)129 mm (5.1 inches)66%extreme
April Weather26°C (78°F)290 mm (11.4 inches)66%extreme
May Weather25°C (78°F)461 mm (18.2 inches)68%extreme
June Weather26°C (78°F)317 mm (12.5 inches)86%extreme
July Weather26°C (79°F)248 mm (9.8 inches)76%extreme
August Weather27°C (80°F)115 mm (4.5 inches)65%extreme
September Weather28°C (82°F)76 mm (3.0 inches)62%extreme
October Weather28°C (83°F)38 mm (1.5 inches)63%extreme
November Weather27°C (81°F)108 mm (4.3 inches)74%extreme
December Weather26°C (78°F)213 mm (8.4 inches)79%extreme

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