Colors of the following climate diagrams: Western Cape Oslo
Daily maximum temperatures
The highest daytime temperatures in Oslo are reached in July with an average of 22.4 °C. The coldest month, on the other hand, is January, with an average of just -1.1 °C. In Western Cape, February is the warmest month, with 28.2 °C. There, it is coolest in July with an average of 18.2 °C.
Night time lows
At night, it cools down to varying degrees depending on the country and altitude. In Oslo, temperatures drop as low as -6.3 °C in January. The warmest nights are in July at 12.8 °C. In Western Cape, it is coolest at night in July at 6.0 °C and warmest in January at 15.7 °C. This corresponds to a cooling of 4.7 to 10.2 °C in Oslo and 11.6 to 13.0 °C in Western Cape.
The humidity of the air depends to a large extent on the air temperature. The warmer the air, the more water it can absorb. At a temperature of 25°C it is 23 grams per cubic meter, at 30 degrees it is already 26 grams. Therefore, the air humidity is given as a relative value to the temperature-dependent maximum amount. It becomes unpleasant when high humidity is combined with high temperatures.
Rainy days per month
By definition, a rainy day is a day on which at least 0.1 liters of precipitation per m² fall. This corresponds to a 1 square meter puddle in which the water stands 0.1 mm high — insofar as the water does not seep away or evaporate. So it does not have to rain all day long. August brings the most rainy days (12.7) in Oslo. With an average of only 6.7 days, April is the friendliest. In Western Cape, it rains most often in June with 6.9 days.
Precipitation amount per day
Depending on the season and the location of a country, the wind brings a varying amount of water with it. As a rule, the water evaporating in the oceans is absorbed and then transported inland. The greatest amount of rain (hail or dew are also forms of precipitation) in Oslo occurs in August, when about 3.5 liters per square meter fall per day. In Western Cape, the average amount of precipitation ranges from 0.8 liters per day in February to 1.8 in August. However, these are average values. If you consider that there are only 12.7 rainy days in Oslo in August, each of them accounts for about 8.3 liters.
Sunshine hours per day
With 3,139 hours of sunshine per year, Western Cape is in the lead. The most hours of sunshine (10.3 per day) are in January. Oslo falls into second place with only 1,752 hours. There the sun is visible in December for only 1.2 hours per day, so not hidden behind clouds.
Hours of daylight
The length of a day varies throughout the year and depends on the distance from the equator. In December, the day in Oslo is only 6.2 hours long. In June, on the other hand, it is 18.8 hours. In Western Cape, it is 10.1 hours in June and 14.3 in December.