Météo à Killarney mois par mois
La meilleure période pour visiter Killarney : mai à juillet — 90/100 en mai, 16 °C et 12 jours de pluie. La meilleure saison, c’est l’été : juin à août (88/100 en moyenne).
Le pire mois est décembre, avec 61/100 — froid, pluvieux, un air pur. Voir décembre →
Mise à jour : septembre 2026 · normales climatiques issues de la réanalyse ERA5
Tu prépares un voyage plus large ? Destination Irlande : quand partir →
Meilleure saison : juin à août (88/100 en moyenne) · pire mois : décembre (61/100)
- Jour
- 16°C
- Nuit
- 9°C
- Jours de pluie
- 12
- Soleil
- 10.8 h
- Humidité
- 79%
- Durée du jour
- 16 h

Killarney, mois par mois
Le score de confort sur 100 pour le type de voyage qui convient le mieux à Killarney, la maximale moyenne, les jours de pluie et les heures de soleil par jour d’après les normales climatiques, et l’affluence habituelle.
Au programme à Killarney toute l’année
Festivals, spectacles naturels, vacances et saisons à surveiller — sélectionnés et sourcés. Les pages de chaque mois donnent le détail.
- mars
- St. Patrick's Festival12–19 mars (en général)Festival
- St Patrick's Day16–18 marsVacances
- avril
- Rally of the Lakes1–3 maiFestival
- mai
- Rhododendrons at Muckross10 mai – 20 juin (en général)Nature
- juillet
- Killarney July race festival10–25 juil. (en général)Festival
- Peak season on the Ring of Kerry1 juil. – 31 aoûtVacances
- septembre
- Red deer rut25 sept. – 25 oct. (en général)Nature
- octobre
- Oakwoods turning5 oct. – 5 nov. (en général)Nature
- novembre
- Christmas in Killarney20 nov. – 31 déc. (en général)Festival
- Ross Castle closed for winter4 nov. – 6 mars (en général)Fermeture
Affluence à Killarney 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.
Pic d’affluenceles voyageurs en parlent comme de la pleine saison, Rally of the Lakes, vacances scolaires dans 4 des pays d’où viennent ses visiteurs
D’après les notes de voyageurs : « …de at its best, sites that are not crowded, and rates below high season. Reports of late May run 60 to 70F with very little rain, w… » — RallyOfTheLakesWeekend
Pic d’affluenceFréquentéIntersaisonCalme
Bon à savoir avant de partir à Killarney
De vraies expériences tirées des récits de voyageurs, citées avec un lien vers l’original.
Se déplacer
A guide to exploring Killarney National Park recommends booking a jaunting cart, the traditional horse-drawn carriage tour with a history dating back to Queen Victoria's 1861 visit, well in advance during summer months when demand genuinely outstrips availability. For anyone without a car, their alternative was the hop-on-hop-off Killarney Shuttle Bus, which covers the main sights across the park's roughly 103 square kilometers of lakes and forest without needing a jaunting cart booking or a rental car.
Notes de voyageurs sur Killarney
Ce qu’en disent celles et ceux qui y sont allés — d’abord les notes valables toute l’année, puis mois par mois.
Forum posters describe January in Ireland generally as genuinely variable - snow, ice and gale-force winds are all possible, but so are lovely bright, cool days, sometimes within the same week. Posters are consistent Killarney itself stays open and worthwhile year-round: Muckross Abbey, Muckross House and Gardens, and Torc Waterfall (which posters say runs even more impressively after heavy winter rain) all remain accessible, along with the scenic N71 road toward Kenmare. Nearby Rossbeigh Beach is specifically named as beautiful in winter. Posters do flag that some region-wide attractions further afield, like certain Cliffs of Moher or Burren interpretive centers, may have reduced winter hours or be closed entirely - worth checking specific sites rather than assuming everything in the wider region runs on a normal schedule.
Killarney-forum threads on a February visit are direct real unsettled weather is the safer assumption, posters calling this genuinely hard to predict, capable of turning sunny and calm or damp and dark with little warning. Regulars call accommodation prices a real upside of the off-season timing, considerably cheaper than the summer peak. Posters describe a lucky clear February day as genuinely rewarding, the bare mountainsides and leafless trees opening up views that summer's foliage blocks. Regulars call a passing shower typically brief on the Ring of Kerry, the usual pattern running shower-clear-shower rather than an all-day soak. Posters recommend real waterproof layers regardless of how the morning starts. Regulars call the national park worth visiting in any February weather. The record: 9.4C days feeling like 6C, 4.6C nights, a notably high 122.7mm across nearly 17 days and 85 percent humidity.
Killarney-forum threads on visiting the national park in March describe the honest expectation as genuinely unpredictable, posters calling proper layers and real rain gear the standard advice. Regulars describe March as broadly colder and wetter than later spring, several places around town still running a reduced winter schedule. Posters call the Gap of Dunloe walk or cycle route still genuinely rewarding even on a changeable day, fit visitors facing few real problems regardless of forecast. Regulars recommend checking Met Eireann for current conditions rather than trusting a seasonal average. Posters describe wrapping up properly as the real key to enjoying outdoor activity, cold snaps entirely possible even on an otherwise mild week. Regulars call the park worth visiting in any weather, the lakes and mountains striking regardless of cloud cover. The record: 10.4C days feeling like 7C, 4.3C nights, an extraordinarily high 115.6mm across nearly 17 days and 84 percent humidity.
Killarney-forum threads on an April 13th visit call this timing entirely reasonable, posters describing mid-April as genuinely warming up compared with earlier in the month. Regulars call the window between Easter and the May bank holiday a real sweet spot, everything open and running but crowds still considerably lighter than peak summer. Posters describe Irish weather in April as capable of anything, clear and sunny one day, properly wet and windy the next, occasionally even a cold snap with a touch of snow. Regulars call late April a genuinely better bet than March, both weather and buzz noticeably improved by then. Posters recommend real waterproof layers regardless of how settled the forecast looks. Regulars call the national park worth visiting in any April weather, cycling and walking routes both genuinely rewarding. The record: 12.8C days feeling like 10C, 6.1C nights, 85mm across over 13 days and 80 percent humidity.
May is one of the two months Killarney regulars name first - May and September, ahead of the July and August crush - and their case joins weather to space: the countryside at its best, sites that are not crowded, and rates below high season. Reports of late May run 60 to 70F with very little rain, with a single all-day wet day in a fortnight described as ordinary rather than lucky. One date to route around: the first weekend of May is a bank holiday, and Killarney hosts the Rally of the Lakes then, which takes over the town and the roads unless the rally is why you came. The record: 15.9C days that feel like 14C, 8.9C nights, 12.4 precipitation days carrying 76.9mm, 10.8 hours of sun and a 15.7-hour day.
Killarney's forum is candid that July weather is genuinely a grab bag — cold, rainy, calm, warm and windy have all been reported in the same month, with wetter conditions than spring and true heatwaves rare. Regulars' consistent advice is layers plus a proper rain jacket, noting July is also the single busiest month locally so accommodation books up fast regardless of forecast.
Killarney-forum threads on September weather are direct conditions here can go every direction within the same single day, sun, cloud, a shower and real wind all entirely possible on one outing around the lakes. Posters call short-sleeved layers under a windbreaker the standard advice, shorts generally unnecessary even on a mild afternoon. Regulars describe late August into early September as sometimes running comfortably mild, other years bringing a genuinely wetter stretch, nothing guaranteed one week to the next in County Kerry. Killarney National Park is called worth visiting regardless of forecast, the lakes and mountain backdrop striking even under grey skies. Posters recommend packing for every condition rather than trusting a single forecast more than a day out, air conditioning entirely unnecessary given how mild temperatures stay here. The record: 16.7C days feeling like 15C, 11.2C nights, an extraordinarily high 107mm across over 15 days and 85 percent humidity.
Ajoute ta propre note depuis la fiche de Killarney sur la carte.