Bahrain weather by month

In Muharraq, 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 May 12 and lasts for 6.0 months, ending around November 9. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 100% of the time on average.

The cloudier part of the year begins around November 10 and lasts for 6.0 months, ending around May 11. The cloudiest month is January, when it is overcast or mostly cloudy 22% 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 Muharraq is typically light breeze, near 18 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.0 months, from around Nov 8 to Apr 8. The windiest month is February, averaging about 20 km/h (breezy).

The calmer part of the year runs from around Jul 14 to Nov 7, with August the calmest month at about 15 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.

Muharraq receives about 5.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.8 and 7.5 kWh/m².

The brighter stretch of the year lasts 6.5 months, from around Mar 20 to Oct 2. The brightest month is May, averaging about 7.4 kWh/m² (intense).

The dimmest month is December, down near 3.8 kWh/m² — roughly 49% less than the May peak.