The climate on the Marshall Islands

Average daytime and nighttime temperatures

All climate diagrams on this page come from the collected data of 2 weather stations.
All data correspond to the average monthly values of the last 20 years.

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Climate zone: tropics

High humidity and hot temperatures make the weather on the Marshall Islands pleasant at times but also tropical humid. It is warm to hot all year round, inviting bathing at average water temperatures of 28 degrees. Due to less rain, the best time for traveling is from January to March. Most precipitation falls in October.
Duration of daylight and sunshine on the Marshall Islands
Compare climate with other regions or countries
Hours of sunshine per daySunshine hours per day on the Marshall Islands
Rain days per monthRain days per month on the Marshall Islands
Precipitation in mm/dayPrecipitation on the Marshall Islands
Water temperatureWater temperatures on the Marshall Islands
Relative humidity in %Relative humidity on the Marshall Islands
Absolute humidity in g/m³Absolute humidity on the Marshall Islands

Temperature records of the last 59 years

The hottest temperature measured from 1964 to January 2023 was reported by the Majuro weather station. In October 2019, the record temperature of 38.5 °C was reported here. The hottest summer from July to September, based on all 2 weather stations on the Marshall Islands , was recorded in 2016 with an average temperature of 29.0 °C. This average temperature will normally be measured every four to six hours, thus also including the nights. Normally, this value is 27.8 degrees Celsius. The average maximum daily temperature at that time was 30.9 °C.

The coldest day in these 59 years was reported by the Majuro weather station. Here the temperature dropped to 20.4 °C in November 2009. Majuro lies at an altitude of three meters above sea level. The coldest winter (January to March) was in 1976 with an average temperature of 26.4 °C. On the Marshall Islands, it is usual to have about 1.3 degrees more at 27.6 °C for this three-month period.

The most precipitation fell in April 1971. With 26.3 mm per day, the Majuro weather station recorded the highest monthly average of the last 59 years.

Long-term development of temperatures from 1997 - 2022

In contrast to single record values, long-term development cannot simply be brought about by all weather stations in the country. Both the number and the locations are constantly changing. An average value would give a distorted result. If several measuring stations in particularly cold mountain or coastal regions are added in one year, the average would decrease as a result of this alone. If a station fails during the summer or winter months, it does not provide any values and distorts the average again. The subsequent long-term development was therefore reduced to only 1 measuring points in order to have comparable data over as long a period as possible.

In the years 1997 to 2022, there were only these 1 weather stations in the whole country, which reported continuous temperature values (Majuro). From these weather reports, we have created a long-term development that shows the monthly average temperatures. The hottest month in this entire period was August 2016 at 29.1 °C. April 2022 was the coldest month with an average temperature of 27.2 °C.

The average annual temperature was about 27.9 °C in the years after 1997 and about 28.2 °C in the last years before 2022. So over the past 26 years, it has only increased by a minimal 0.4 °C. This trend only applies to the selected 1 weather stations on the Marshall Islands. A considerably more comprehensive evaluation of global warming has been provided separately.

Long-term development of temperatures on the Marshall Islands

Data basis: German Weather Service, individual values averaged and supplemented by own elements.
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