December weather forecastJoanna, Guyana
December
Weather in December
December, the first month of the winter in Joanna, is also a moderately hot month, with an average temperature varying between 28.9°C (84°F) and 25.1°C (77.2°F).Temperature
December's arrival brings an average high-temperature of a warm 28.9°C (84°F), demonstrating subtle variation from the preceding month. Nighttime temperatures hover around an average low of 25.1°C (77.2°F) in December, a slight descent from daytime highs.Heat index
The heat index in December is computed to be a tropical 34°C (93.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Observations indicate that the heat index values are for shady locations with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
The average relative humidity in December is 80%.Rainfall
In Joanna, in December, during 27.4 rainfall days, 208mm (8.19") of precipitation is typically accumulated. In Joanna, during the entire year, the rain falls for 312.6 days and collects up to 2298mm (90.47") of precipitation.Daylight
With an average of 11h and 48min of daylight, December has the shortest days of the year in Joanna.On the first day of December in Joanna, sunrise is at 05:44 and sunset at 17:32. On the last day of the month, sunrise is at 05:59 and sunset at 17:45 -04.
Sunshine
In December, the average sunshine is 7.8h.UV index
January, February, April, June through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Joanna, Guyana
- Average high temperature in December: 28.9°C
The warmest month (with the highest average high temperature) is September (30.8°C).
The months with the lowest average high temperature are January and February (28°C).
- Average low temperature in December: 25.1°C
The months with the highest average low temperature are September and October (25.9°C).
The coldest months (with the lowest average low temperature) are January, February and July (24.8°C).
Average pressure in December
Joanna, Guyana
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is June (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in December
Joanna, Guyana
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is March (16.7km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in December
Joanna, Guyana
- Average humidity in December: 80%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is September (76%).
Average rainfall in December
Joanna, Guyana
- Average rainfall in December: 208mm
The wettest month (with the highest rainfall) is June (314mm).
The driest month (with the least rainfall) is March (97mm).
Average rainfall days in December
Joanna, Guyana
- Average rainfall days in December: 27.4 days
The month with the highest number of rainy days is July (29.9 days).
The month with the least rainy days is October (23.5 days).
Average daylight in December /
Average sunshine in December
Joanna, Guyana
- Average daylight in December: 11h and 48min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in December: 7h and 48min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is April (Average sunshine: 7h and 0min).
Average sunshine days in December
Joanna, Guyana
- Average sunshine days in December: 1.6 days
The month with the most sunshine days is October (5 days).
The month with the least sunshine days is July (0.3 days).
Average UV index in December
Joanna, Guyana
- Average UV index in December: 7
The months with the highest UV index are January, February, April, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are March and May (UV index 6).
Average cloud cover in December
Joanna, Guyana
- Average cloud cover in December: 43
The months with the most cloud cover are February and April (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 24).
Average visibility in December
Joanna, Guyana
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, September, October and December (10km).
The months with the lowest visibility are May, June, July, August and November (9km).
