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September Weather in Onverwacht, Suriname

Last updated: August 31, 2025

In Onverwacht, Suriname, the average temperature in September hovers around 28°C (82°F), with minimums dipping to 21°C (70°F) and maxing out at a warm 36°C (97°F). Expect 93 mm (3.7 in) of precipitation spread over approximately 16 days, accompanied by a comfortable average humidity of 54%.

September Temperature in Onverwacht

In September in Onverwacht, the average temperature is a warm 28°C (82°F). Maximum temperatures can reach up to 36°C (97°F), while the minimum can drop to a comfortable 21°C (70°F). This climate makes Onverwacht an ideal destination for travelers seeking pleasant weather during their visit.

September Weather in Onverwacht: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Onverwacht, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onverwacht, September typically has an average temperature of 28°C (82°F), with highs reaching up to 36°C (97°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979797979798182828179
Data source: Temperature data for Onverwacht 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.

September Precipitation in Onverwacht

In Onverwacht in September, the precipitation amount is 93 mm (3.7 in) spread over the course of 16 days.

September Precipitation Trends in Onverwacht

The chart displays monthly precipitation patterns in Onverwacht, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Onverwacht, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec121951012063313522521339370170221
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Onverwacht

In Onverwacht in September humidity is 54%. With an average temperature of 28°C (82°F), this humidity feels like a warm, comfortable embrace, perfect for leisurely strolls and outdoor adventures.

September Average Humidity in Onverwacht

This chart illustrates the average monthly humidity levels in Onverwacht, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Onverwacht is approximately 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%61%60%60%62%86%85%72%54%53%66%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Onverwacht

In Onverwacht in September, 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 Onverwacht.

Maximum UV Index Levels in Onverwacht for September

The chart shows the monthly maximum UV Index (UVI) for Onverwacht in September, 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 September, the maximum UV index in Onverwacht typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131416161413121313131212
Data source: Onverwacht September 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 September Weather in Onverwacht Compares to Other Months

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

This table compares monthly weather conditions in Onverwacht, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)121 mm (4.8 inches)64%extreme
February Weather26°C (79°F)95 mm (3.7 inches)61%extreme
March Weather26°C (80°F)101 mm (4.0 inches)60%extreme
April Weather26°C (80°F)206 mm (8.1 inches)60%extreme
May Weather26°C (80°F)331 mm (13.0 inches)62%extreme
June Weather26°C (79°F)352 mm (13.8 inches)86%extreme
July Weather26°C (80°F)252 mm (9.9 inches)85%extreme
August Weather27°C (81°F)133 mm (5.2 inches)72%extreme
September Weather28°C (82°F)93 mm (3.7 inches)54%extreme
October Weather28°C (82°F)70 mm (2.7 inches)53%extreme
November Weather27°C (81°F)170 mm (6.7 inches)66%extreme
December Weather26°C (79°F)221 mm (8.7 inches)73%extreme

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