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December Weather in Sunyani, Ghana

Last updated: August 23, 2025

In December, the average temperature in Sunyani, Ghana hovers around 27°C (81°F), with a minimum of 18°C (64°F) and soaring to a maximum of 36°C (97°F). Expect a moderate precipitation amount of 16 mm (0.6 in) over the course of 2 days, coupled with an average humidity of 69%. Ideal for exploring or relaxing, this month offers a warm and inviting climate.

December Temperature in Sunyani

In December in Sunyani, the average temperature is 27°C (81°F). Maximums can reach 36°C (97°F), while minimums can be as low as 18°C (64°F). Travelers should prepare for warm weather with the possibility of hot days and cooler evenings, making it ideal for outdoor activities.

December Weather in Sunyani: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sunyani, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sunyani, December typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec838584838280787878798081
Data source: Temperature data for Sunyani 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.

December Precipitation in Sunyani

In Sunyani in December, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

December Precipitation Trends in Sunyani

The chart displays monthly precipitation patterns in Sunyani, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Sunyani, December typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec6379996951091031101811447816
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sunyani

In Sunyani in December, humidity is 69%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket wrapped around you, making it essential to stay hydrated and take frequent breaks during your travels.

December Average Humidity in Sunyani

This chart illustrates the average monthly humidity levels in Sunyani, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Sunyani is approximately 69%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec42%51%66%76%81%85%87%91%92%90%82%69%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sunyani

In Sunyani in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sunyani.

Maximum UV Index Levels in Sunyani for December

The chart shows the monthly maximum UV Index (UVI) for Sunyani in December, 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 December, the maximum UV index in Sunyani typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11111214131212131312109
Data source: Sunyani December 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 December Weather in Sunyani Compares to Other Months

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

This table compares monthly weather conditions in Sunyani, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)5 mm (0.2 inches)42%extreme
February Weather30°C (86°F)37 mm (1.5 inches)51%extreme
March Weather29°C (84°F)99 mm (3.9 inches)66%extreme
April Weather28°C (83°F)96 mm (3.8 inches)76%extreme
May Weather28°C (82°F)95 mm (3.7 inches)81%extreme
June Weather26°C (80°F)109 mm (4.3 inches)85%extreme
July Weather26°C (78°F)103 mm (4.1 inches)87%extreme
August Weather25°C (78°F)109 mm (4.3 inches)90%extreme
September Weather26°C (78°F)181 mm (7.1 inches)92%extreme
October Weather26°C (79°F)144 mm (5.7 inches)90%extreme
November Weather27°C (81°F)78 mm (3.1 inches)82%very high
December Weather27°C (81°F)16 mm (0.6 inches)69%very high

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