Météo à Héraklion en mai
À Héraklion en mai : chaud, un peu de pluie, avec un air pur — une excellente période pour y aller.
Mise à jour : septembre 2026 · normales climatiques issues de la réanalyse ERA5
N° 6 sur 12 mois à Héraklion · n° 388 sur 1413 dans le monde en mai · confort 86/100 (niveau A)
- Jour
- 24°C
- Nuit
- 16°C
- Jours de pluie
- 6
- Soleil
- 12.3 h
- Humidité
- 63%
- Durée du jour
- 14 h

Notes de voyageurs sur Héraklion en mai
Regulars are specific this month splits cleanly - the first ten days still capable of the odd showery day and a cool sea, while shower-free days far outweigh the wet ones by mid-month, and late May can already turn genuinely hot with little to no rain chance left. Our row backs that mild-to-warm read sitting across that range, 24.1C over 15.8C nights, with 37.4mm of rain across 5.5 days and humidity at 63 percent. Regulars are consistent air quality and clarity feel notably fresh and clear early in the month, ideal for walking before the heat properly sets in. The sea sits at a cool 19.1C, still brisk early on but warming steadily as the month goes on. The record: 12.3 hours of sun, a 13 kph wind and AQI 49.
Les autres mois à Héraklion
October on this island splits into two halves and the board is precise about where. Early October can still reach towards 30C on a good day; around the middle of the month the weather turns, usually a storm and a couple of days of heavy rain, after which it often comes back warm and dry. Our row averages 24.1C over 17.5C with 33.3mm across only 4.1 days, which is that pattern flattened into a month. On the sea they run warmer than our column - they say 26C, ours reads 23.8C - still swimming water either way, and they add that unheated pools now cool faster than the sea does. Their other advice is about where to stay: seasonal resorts start shutting through the second half of October, while a year-round town like this one keeps working. The record: humidity 76 percent, 9.9 hours of sun and AQI 40.
Heraklion-forum threads on June weather call it settled and warm to hot from the start of the month, getting hotter the further in you go - definitely beach weather, with days reckoned at 30C-plus on the warmer stretches. Evenings stay comfortable for most of the night, though it can drop into the high teens Celsius in the very early hours, and a light summer dress works fine except for the occasional cool evening when the wind picks up. The sea runs pleasantly warm by most accounts, though a few visitors find it a touch cool on first entering. Regulars call June one of the most pleasant months on the island specifically because it's less busy and less intensely hot than July or August. The record: 27.8C days feeling like 30C, 20.2C nights, just 16mm across 2.5 days, a 23.2C sea, 60 percent humidity and 13.2 hours of sun.
August is Crete's hottest month and the forum's word for it is African: averages near 30C by day and 22 at night, but with plenty of days at 35 and some at 40, and nights that will not drop below 25. Our row for Heraklion gives 29.8C and 23.3C, reading as 32C. The thing that makes it liveable is the meltemi, which starts around the end of July and blows through August from the north - regulars say plainly that it takes the sting out of the heat. Heraklion is on the north coast, where that wind is strongest, and a few southern spots get it anyway through channelling. Their honest advice for August is to plan nothing: the beach, or the shade. May and September are the alternatives. The record: 1.4 precipitation days, 12.5 hours of sun and a 27.7C sea.
July is one of the hottest months on the southernmost island in Europe, and the Crete forum's regulars say the nights follow the days - if it is very hot by afternoon it stays hot after dark - with wind most people treat as relief rather than nuisance. The meltemi is the exception: it usually arrives in the last fortnight of August rather than early July, and where it does blow it hits the south and makes sunbathing miserable by throwing sand across the beach. The rest of the time the south coast is the sheltered side and the place regulars send you for a reliable breeze. Their own pick of the year is June or September, cooler and quieter both. The record: 30.1C days, 23.3C nights, 1.1 precipitation days, 13.1 hours of sun and a 27.3C sea.
Ajoute ta propre note depuis la fiche de Héraklion sur la carte.
Normales climatiques à Héraklion — mai
Moyennes mensuelles issues de la réanalyse ERA5. L’AQI est l’indice américain de qualité de l’air (US AQI) moyen du mois.
Affluence à Héraklion en mai
À quel point le lieu lui-même est fréquenté — vacances scolaires et grands départs, les mois signalés par la rédaction, et l’attrait que la météo leur donne. Jamais pris en compte dans le score de confort.
FréquentéCoach and cruise season at Knossos, vacances scolaires dans 4 des pays d’où viennent ses visiteurs(estimé)
Pic d’affluenceFréquentéIntersaisonCalme
Les meilleurs mois pour la météo à Héraklion
Classés selon le score de confort climatique propre à cette destination au fil de l’année — autre chose que son affluence (voir Affluence plus haut).
Météo correcteÀ Héraklion, la météo est au top entre juillet et septembre.
Meilleure météoMétéo correcteMétéo la plus rude
Au programme à Héraklion en mai
Événements saisonniers récurrents, spectacles naturels, fermetures et vacances — sélectionnés et sourcés.
- Nature
Spring on the Messara
10 mars – 10 mai · en généralFleurs sauvages et floraisonsThe plain south of the city and the climb up to the Lasithi plateau are green and flowering for two months, which is also when the archaeological sites are walkable at midday.
- Saison
Coach and cruise season at Knossos
15 avr. – 31 oct.BondéRéserver tôtThe site takes the island's whole coach and cruise load between ten and two, on almost no shade. Being at the gate when it opens is the only version of Knossos worth having.
Tout près, il se passe quelque chose
À moins de 300 km de Héraklion — une excursion à la journée ou un saut de puce — avec quelque chose au programme ce mois-ci. Jamais pris en compte dans le score de confort.
Où se trouve Héraklion ?
Héraklion en mai — FAQ
- Est-ce une bonne période pour aller à Héraklion en mai ?
- À Héraklion en mai : chaud, un peu de pluie, avec un air pur — une excellente période pour y aller. Sur le score de confort de SeasonMap, ce mois se classe au rang 6 sur 12 pour Héraklion (86/100).
- Quel temps fait-il à Héraklion en mai ?
- En mai, Héraklion affiche en moyenne une maximale de 24.1 °C et une minimale de 15.8 °C, avec environ 37.4 mm de pluie sur à peu près 5.5 jours de pluie.
- Quelle est la qualité de l’air à Héraklion en mai ?
- En mai, l’indice américain de qualité de l’air (US AQI) moyen à Héraklion tourne autour de 49.
À moins de 300 km : Spring wildflowers and greens à Chania, vers 10 mars – 10 mai ; Season opens à Santorini, vers 25 mars – 10 mai