This report describes the typical weather at the Nadi International Airport (Nadi, Fiji) weather station over the course of an average December. It is based on the historical records from 1996 to 2012. Earlier records are either unavailable or unreliable.
Nadi has a tropical monsoon climate with short dry season. The area within 25 mi of this station is covered by oceans and seas (100%).
The month of December is characterized by essentially constant daily high temperatures, with daily highs around 87°F throughout the month, exceeding 90°F or dropping below 84°F only one day in ten.
Over the course of December, the length of the day is essentially constant. The shortest day of the month is December 1 with 13:07 hours of daylight; the longest day is December 22 with 13:12 hours of daylight.
The earliest sunrise is at 5:26am on December 2; the latest sunset is at 6:48pm on December 31; the latest sunrise is at 5:38am on December 31; the earliest sunset is at 6:33pm on December 1.
Daylight saving time (DST) is not observed in 2012.
The median cloud cover ranges from 63% (partly cloudy) to 69% (partly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 6% from the start to the end of the month.
On December 16, a representative day, the sky is clear or mostly clear 32% of the time, partly cloudy 19% of the time, and mostly cloudy or overcast 48% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around December 31, occurring in 57% of days. Precipitation is least likely around December 1, occurring in 49% of days.
Throughout December, the most common forms of precipitation are thunderstorms, moderate rain, and light rain.
Thunderstorms are the most severe precipitation observed during 46% of those days with precipitation. They are most likely around December 27, when it is observed during 27% of all days.
Moderate rain is the most severe precipitation observed during 26% of those days with precipitation. It is most likely around December 31, when it is observed during 16% of all days.
Light rain is the most severe precipitation observed during 23% of those days with precipitation. It is most likely around December 7, when it is observed during 13% of all days.
Either snow is exceptionally unlikely to fall at this location in December or this station does not reliably report precipitation types.
The relative humidity typically ranges from 61% (mildly humid) to 96% (very humid) over the course of a typical December, rarely dropping below 52% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around December 1, at which time the relative humidity drops below 65% (mildly humid) three days out of four; it is most humid around December 31, rising above 94% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical December, the dew point typically varies from 69°F (muggy) to 77°F (oppressive) and is rarely below 65°F (mildy humid) or above 79°F (oppressive).
Over the course of December typical wind speeds vary from 0 mph to 14 mph (calm to moderate breeze), rarely exceeding 18 mph (moderate breeze).
The highest average wind speed of 7 mph (light breeze) occurs around December 1, at which time the average daily maximum wind speed is 14 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around December 27, at which time the average daily maximum wind speed is 14 mph (moderate breeze).