伊吹山山頂は薄曇り、気温6.9℃、体感は4.7℃で推移している。風は穏やかだが、突風は9.2m/sを観測しており、表登山道の稜線に出ると風の影響を感じるだろう。視程は20km以上と良好で、琵琶湖や濃尾平野の展望は午前中が特に期待できる。行動中の体感気温は、ベースレイヤーと薄手のミッドレイヤー、防風性のあるアウターで適切に調整すること。休憩時にはフリースなどを追加し、体温低下を防ぐ。地面は降水がなく積雪もないため、石灰岩質の表登山道は概ねドライコンディションと判断するが、日陰や湿った場所では滑りやすい箇所もあるため足元には注意が必要だ。泥濘のリスクは低い。
午前9時にはほぼ晴れとなり、気温は正午までに11.6℃まで上昇する見込み。風も穏やかな状態が続くが、突風は11m/s台を維持する時間帯があるため、特に展望の良い山頂部でのバランスには注意を払うこと。午後3時には降水確率が41%に上がるものの、降水量は0mm予報で、薄曇りから曇りへと天候が変化する。この時間帯は雲が広がりやすく、山頂付近では霧による視界不良のリスクも考慮に入れる必要がある。
雷のリスクは今日の予報では低い。強風も行動を妨げるレベルではないが、体感温度を下げるため防風対策は必須だ。低体温症のリスクは日中の気温上昇と活動量を考慮すると低いが、表登山道は一気登りのため、山頂と山麓の大きな気温差(8.3℃)に備え、適切なレイヤリングで体温管理を徹底すること。自動リスク判定では顕著な警戒値は検出されていないが、常に天候の変化には注意を払い、計画的な行動を心がけるべきだ。夕方以降は気温が緩やかに下がり、曇り空が続く。風は弱まる傾向にある。
滋賀県
伊吹山
Mt. Ibuki
2026年5月6日 07:01 更新
琵琶湖の展望良好。気温上昇に備え行動を
Mild Conditions on Ibukiyama. Enjoy Clear Views but Watch for Afternoon Cloud
現在の気象状況 — Current Conditions
▲ 山頂エリア (Summit)
気温 Temp
+6.9°C
風速 Wind
1.2m/s
E
天候 Weather
⛅ 薄曇り
体感 Feels Like
+4.7°C
▼ 登山口・山麓エリア (Base)
気温 Temp
+15.2°C
風速 Wind
2.8m/s
E
天候 Weather
⛅ 薄曇り
標高 Altitude
228m
山頂の3時間予報 — Summit Forecast
09:00
+9°C
1.8m/s
ESE
💧 0mm
(4%)
12:00
+12°C
2.1m/s
SE
💧 0mm
(8%)
15:00
+12°C
1.8m/s
SE
💧 0mm
(41%)
18:00
+10°C
1.5m/s
ESE
💧 0mm
(10%)
21:00
+8°C
1.1m/s
SE
💧 0mm
(0%)
00:00
+8°C
1m/s
ESE
💧 0mm
(0%)
03:00
+8°C
0.7m/s
E
💧 0mm
(0%)
気象分析 — Analysis Report
日本語
コンディション概ね良好 — 通常の山岳安全対策を実施すること
English
Conditions generally good — Conduct standard mountain safety measures
Ibukiyama summit is experiencing partly cloudy conditions with a temperature of 6.9 degrees Celsius, feeling like 4.7 degrees Celsius. Winds are light, but gusts up to 9.2 meters per second have been observed, indicating that hikers on exposed ridges of the Omote Tozando route will feel the wind's impact. Visibility is excellent, exceeding 20 kilometers, offering superb views of Lake Biwa and the Nobi Plain, especially in the morning. For layering, a base layer, a light mid-layer, and a windproof outer shell are recommended to manage body temperature during activity. Add a fleece during breaks to prevent hypothermia. The ground is dry with no precipitation or snow, so the limestone-rich Omote Tozando is generally dry, but caution is advised on shaded or damp sections that may be slippery. Muddy conditions are unlikely.
By 9 AM, the sky is expected to become mostly clear, with temperatures rising to 11.6 degrees Celsius by noon. Winds will remain light, but gusts around 11 meters per second are possible, requiring attention to balance, especially on the exposed summit area. By 3 PM, the chance of precipitation increases to 41%, though no rainfall is forecast. The weather will shift from partly cloudy to cloudy. During this period, cloud cover may increase, and there is a risk of fog and reduced visibility near the summit.
The risk of thunderstorms is low according to today's forecast. While strong winds are not expected to impede movement, wind protection is essential to mitigate the wind chill effect. The risk of hypothermia is low given the rising daytime temperatures and activity levels. However, the Omote Tozando is a continuous ascent, so hikers should be prepared for the significant temperature difference between the summit and base (8.3 degrees Celsius) by managing their layers effectively. No significant alerts were detected by the automated risk assessment, but continuous monitoring of weather changes is crucial for safe travel. Temperatures will gradually drop in the evening, and cloudy skies will persist with diminishing winds.
By 9 AM, the sky is expected to become mostly clear, with temperatures rising to 11.6 degrees Celsius by noon. Winds will remain light, but gusts around 11 meters per second are possible, requiring attention to balance, especially on the exposed summit area. By 3 PM, the chance of precipitation increases to 41%, though no rainfall is forecast. The weather will shift from partly cloudy to cloudy. During this period, cloud cover may increase, and there is a risk of fog and reduced visibility near the summit.
The risk of thunderstorms is low according to today's forecast. While strong winds are not expected to impede movement, wind protection is essential to mitigate the wind chill effect. The risk of hypothermia is low given the rising daytime temperatures and activity levels. However, the Omote Tozando is a continuous ascent, so hikers should be prepared for the significant temperature difference between the summit and base (8.3 degrees Celsius) by managing their layers effectively. No significant alerts were detected by the automated risk assessment, but continuous monitoring of weather changes is crucial for safe travel. Temperatures will gradually drop in the evening, and cloudy skies will persist with diminishing winds.
山岳ガイド — Mountain Guide
概要 Overview
滋賀県と岐阜県の県境にそびえる標高1,377mの独立峰。古来より日本武尊神話の舞台として知られ、近江盆地・濃尾平野から特徴的な山容を望むことができる関西を代表する百名山。
特徴・地形 Features
石灰岩質の山体で、独特の植生(イブキジャコウソウ・イブキトラノオなど固有種)が分布。山頂部は広大な草原状で、琵琶湖と濃尾平野の大パノラマが広がる。
ベストシーズン Best Season
4月〜11月が一般シーズン。お花畑の最盛期は7月〜8月。降雪期は本格冬山。
主要ルート Main Routes
表登山道(最一般的・上野登山口)、ドライブウェー利用山頂往復。
注意点・危険箇所 Cautions
標高は低いが冬期は3m超の積雪と厳冬期気温で本格冬山。日射病・熱中症(夏期)にも注意。
アクセス Access
JR東海道線米原駅・近江長岡駅からバス。名神高速関ヶ原ICから車。
※ 本ガイド情報は一般的な参考資料であり、最新の登山道状況・規制情報は各自治体・登山口の公式情報をご確認ください。