Marshall Islands weather by month

In Majuro, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around December 6 and lasts for 4.2 months, ending around April 12. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 42% of the time on average.

The cloudier part of the year begins around April 13 and lasts for 7.8 months, ending around December 5. The cloudiest month is July, when it is overcast or mostly cloudy 71% of the time.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Majuro is typically breezy, near 23 km/h, and varies a lot with the seasons.

The windier part of the year lasts 6.4 months, from around Nov 30 to Jun 13. The windiest month is February, averaging about 29 km/h (windy).

The calmer part of the year runs from around Jun 14 to Nov 29, with August the calmest month at about 16 km/h.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Majuro receives about 5.3 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.7 and 5.8 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.