Het weer in Haifa in mei

May is the month regulars pick for touring here - the summer heat has not arrived and the humidity that makes it hard is still months off - and early May is usually warm enough to swim, though the sea is at the cool end of its year at 22.5C and far below its September figure. Our row gives 29.2C days over 17.2C nights with 5.3mm of rain. The variable they name is the sharav, or hamsin: a very hot dry south-easterly that arrives in spring, dries everything out, and might take two or three days of a fortnight's trip. May and June with September and October are the beach seasons they recommend. The record: humidity 61 percent, 12.6 hours of sun and AQI 61.

Forum posters describe October along Israel's coast as genuinely variable year to year - some years running hot and dry throughout, others bringing rain and even stormy stretches, though most multi-day visits land mostly warm and dry overall. Posters cite typical late-October highs around 75-80F (24-27C), with real day-to-day unpredictability including a chance of a hot desert wind (a hamsin) on top of the more standard chance of rain. Posters consistently recommend layering - chilly mornings, warm midday sun, and a cooling-off again in the evening - as the practical approach regardless of which pattern a given October delivers. Posters generally rate October as warm and mostly dry for the coast, with real variability from year to year worth planning flexibly around.

Forum regulars call April a strong month across the coast: warm but not hot, with little to no realistic chance of rain, so short sleeves are fine by day and just a light sweater for the evening in cooler, higher-elevation spots inland. The sun is flagged as already fierce enough to need a wide-brimmed hat. It's technically before the official lifeguarded bathing season, but posters say the sea is often warm enough to swim in on a good day regardless - Atlit beach, a short drive south of Haifa, gets singled out as a favorite for exactly that.