The climate of Oahu (Hawaii
- United States of America)
Oahu is the third largest island of Hawaii. The largest part of the
Hawaiian population lives on this island. The most important cities on
the island are Waikiki and Honolulu. Pearl Harbor is located on this
island. On 7 December 1941 the harbor was bombed by Japanese air
forces. Almost the entire American naval fleet was destroyed during
this bombing. On the site where the bombing took place a memorial
center can be found. However, the island has more historic sites to
offer. Oahu is the longest inhabited of all the Hawaiian islands. On
the north coast big waves crash onto the shore. This spot is very
popular among surfers. The surf here is a real challenge. The interior
of Oahu is very rural and nice. Oahu has a tropical climate. because
the island consists of two volcanoes high differences in precipitation
figures can be recorded. The Ko’olau mountain ridge forms a wall in
the west which actually stops the rain from going any further. This
means the villages located at the foot of this mountain ridge have
higher precipitation figures. Most rain falls during the evening and
early morning. The cloud banks over the mountain ridges clearly seen
from a high vantage point give an indication of the difference in
rainfall.
Climate information
The figures below are based on long term weather and climate records.
They are an average for Oahu:
Please, bear in mind that local deviations may occur
average maximum
temperature (°C)
average
minimum
temperature (°C)
average
hours of sunshine
per day
average days with
precipitation
per month
average
mm precipitation
per month
average
sea
temperature (°C)
January
27
19
7
10
25
February
27
18
7
9
25
March
28
19
8
9
25
April
28
20
8
9
25
May
29
21
9
7
26
June
30
22
9
6
26
July
30
23
10
7
26
August
31
24
9
6
27
September
31
23
9
7
27
October
30
23
8
9
27
November
29
22
7
9
26
December
28
20
6
10
26
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm = 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches
More climate information
Climate figures are very useful but don’t present a general impression
of the climate and the eventual weather circumstances within a certain
period. The figures don’t always reflect the chance of wintry weather,
extreme heat or hurricanes. That is why we offer useful extra climate
information for each month of the year:
Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.
this site in Dutch
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm
= 0-0.2 inches ● 
= 0.2-1.2 inches ● 
= 1.2-2.4 inches ● 
= 2.5-4 inches ● 
= 4.1-8 inches ● 
= over 8 inches
