Portfolio of Kimberly Johans

A collection of articles created during my stint as a journalist at The Macau Daily Times

August: a little wetter and more like normal

Posted by Kimberly on September 9, 2007

By Kimberly Johans
Published in The Macau Daily Times
September 9, 2007, page 6 (494 words)

After the excessive dryness of July, Macau’s rainfall got back to normal last month.
The Macao Meteorological and Geophysical Bureau recorded 343.8 mm of rain, a vast improvement on July’s 39.2 mm.
August’s rainfall level was more in keeping with that of June’s which totalled 408.6 mm.
And while there were only nine days last month that saw rain, August saw rain fall on a total of 24 days.
The highest rainfall occurred on August 10 (54.8 mm) while the lowest, that is, at least some rainfall, occurred on August 12 and 24 (0.2 mm).
Last month started out poorly, with a total of only 10.2 mm falling over the course of the first five days.
And then the longest period of continuous rainfall in some degree or other occurred, between August 6 and August 18.
Rainfall over three days in August added up to more than a third of the rainfall for the entire month, with those days averaging 118.8 mm.
Those levels in turn affected the temperature, whose total average was 27.9 degrees Celsius, lower than July’s 29.1 degrees and June’s 28.0 degrees.
The average maximum temperature recorded for August was 30.9 degrees while the average minimum was 25.7 degrees.
The hottest day of the month was August 4 with an average temperature of 30.5 degrees, also the hottest in July.
Meanwhile the coolest was August 11, at 25.2 degrees, also one of the days with the highest humidity percentage and no hours of bright sunshine.
The Bureau measures the number of hours of bright sunshine on a daily basis and shows a total of 165.7 hours in the month of August, nearly half the number of July and closer to June levels (180.8 hours).
There were quite a few days, about ten with no hours of bright sunshine, not necessarily correlating with those days of most rainfall. Meanwhile August 3 recorded the highest, at 12.3 hours.
Both August 12 and August 22 had no sunny hours but also the lower levels of rainfall (0.2 mm and 1.0 mm respectively).
The average wind speed for August was 12.4 km/h with the majority being south-easterly.
While this seemed to have been increasing over the past three months on average, (May’s averaged 11.8 km/h, June was 13.9 km/h and July was 15.0 km/h), August seems to have stopped that ascent.
The month’s windiest day occurred on August 9 at 23 km/h, the same as July’s windiest speed. The least windy day, at 6 km/h was on August 8.
If July was incredibly humid with an average relative humidity of 79.0 percent, then August was even worse, with an average of 83.5 percent, almost at June levels (84.6 percent).
As was reflected in July, last month’s most humid day, August 10 (94 percent) correlated with it’s most rainy (54.8 mm).
Lastly, the average sea level pressure for August was 1004.4 hectoPascals (hPa) down from July’s average of 1007.2 hPa and June’s level of 1006.6 hPa.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: