Hiroshima in June
In June, Hiroshima has 226.5 mm (8.92 in) of rain, a daily high of 27.2 °C (81.0 °F) and a daily low of 19.8 °C (67.6 °F), as 1991-2020 means; figures in brackets are converted.
Last updated : what the month is like; shorter source notes.
Best time to visit Hiroshima: June misses our rule: rain is 76.5 mm over our 150 mm. Expect 10.7 rain days.
What June is like in Hiroshima
- Women in bright yukata are seen all over Hiroshima during Toukasan, the festival that starts the yukata season. It runs three days from a Friday early in June, around Enryuji temple and Chuo-dori. Source: Toukasan Enryuji (official site), checked .
- Birdsong and the sound of a cool stream rise below the iris beds of Hiroshima Botanical Garden. The irises usually peak in early to mid-June. Source: Hiroshima Botanical Garden (official; Wayback copy, live site is http only), checked .
- Hydrangeas fill Hiroshima Botanical Garden between late May and late June, some eighteen hundred plants in all. One kind, Kurenai, opens white, turns pink and ends deep red. Source: Hiroshima Botanical Garden (official; Wayback copy, live site is http only), checked .
Key figures
Weather in June, 1991-2020 means
- Daily high
- 27.2 °C (81.0 °F)
- Daily low
- 19.8 °C (67.6 °F)
- Rain
- 226.5 mm (8.92 in) in the month
- Sunshine
- 154.6 h in the month
Climate normals 1991-2020, computed by JMA and submitted to the World Meteorological Organization. Checked .
Station: Hiroshima, 1.6 km from the city centre point.
In June the sea off Hiroshima averages 20.4 °C (68.7 °F), 3.4 °C warmer than in May.
Our 1991-2020 mean of NOAA OISST v2.1, checked .
Daylight on 15 June 2026
- Sunrise
- 04:57 local time
- Sunset
- 19:24 local time
- Day length
- 14 h 27 min
Day length 1-30 June: 14 h 18 min to 14 h 26 min, +8 min.
Source: NOAA Solar Calculator equations, checked .
Month by month
Each month: daily high in °C, then rain in mm, 1991-2020 means.
WMO climate normals 1991-2020, as above, checked .
This month against the year
| Measure | June | Rank |
|---|---|---|
| Daily high | 27.2 °C | 4th warmest |
| Daily low | 19.8 °C | 4th warmest |
| Rain | 226.5 mm | 2nd wettest |
| Sunshine | 154.6 hours | 5th least sunny |
| Day length | 14 h 27 min | longest |
Equal values share a rank. How we rank months
Sunshine share: 36% of the 432.5 hours from sunrise to sunset in June. How we compute sunshine share
Hiroshima in June, on average: 10.7 rain days (1 mm or more).
WMO climate normals 1991-2020, as above, checked .
Day length: NOAA solar equations, checked .
Public holidays this month
June 2026: none.
June 2027: none.
Checked against the official list, .
Source: holidays Python library, checked . Library: holidays 0.105.
Same month in 20 cities
Hiroshima is warmer than 13 of our 20 cities in June by mean daily high. How we rank cities
Closest high and low in June: Osaka (0.7 °C apart), Barcelona (1.0), Tokyo (1.2).
| City | Gap from Hiroshima, °C | High, °C | Low, °C | Rain, mm | Sunshine, hours |
|---|---|---|---|---|---|
| Hiroshima (this page) | — | 27.2 | 19.8 | 226.5 | 154.6 |
| Osaka (closest) | 0.7 | 28.0 | 20.3 | 185.1 | 154.3 |
| Barcelona (closest) | 1.0 | 26.2 | 18.8 | 27.0 | 250.0 |
| Tokyo (closest) | 1.2 | 26.1 | 18.5 | 167.8 | 124.2 |
| New York | 1.3 | 26.5 | 18.0 | 115.3 | no data |
| Rome | 2.0 | 28.1 | 16.7 | no data | no data |
| Chicago | 2.1 | 26.9 | 16.0 | 104.1 | no data |
| Los Angeles | 2.8 | 25.1 | 16.3 | 2.3 | no data |
| Madrid | 2.8 | 29.4 | 16.5 | 19.6 | no data |
| Seville | 3.4 | 32.4 | 18.2 | 5.8 | 357.3 |
| Vienna | 3.6 | 25.1 | 14.7 | 70.0 | 260.5 |
| Paris | 4.7 | 23.4 | 14.2 | 51.3 | 203.0 |
| Hong Kong | 5.1 | 30.7 | 26.5 | 491.5 | 144.3 |
| Singapore | 5.3 | 31.9 | 25.7 | 135.3 | no data |
| Prague | 5.5 | 23.5 | 12.5 | 77.7 | 229.9 |
| Berlin | 5.6 | 23.1 | 12.8 | 58.2 | 230.1 |
| Munich | 5.6 | 22.9 | 12.9 | 120.9 | 223.7 |
| London | 6.6 | 21.4 | 12.5 | 50.5 | no data |
| Amsterdam | 7.7 | 20.3 | 11.3 | 64.8 | 217.2 |
| Buenos Aires | 11.1 | 16.4 | 8.4 | 61.5 | 135.8 |
Sources (1991-2020): WMO climate normals and NOAA U.S. Climate Normals, checked , ; Hong Kong: our 1991-2020 mean of the Hong Kong Observatory daily climate series on DATA.GOV.HK; Singapore: our 1991-2020 mean of the National Environment Agency monthly climate series on data.gov.sg; both checked . Each city's page names its station. All sources in full on Methodology.
Hong Kong figures: The Government of the Hong Kong Special Administrative Region and the Hong Kong Observatory own the intellectual property rights in the data; attribution to them and DATA.GOV.HK. Licence: Terms and Conditions of Use of DATA.GOV.HK, version 1.2.
Singapore figures: Contains information from the National Environment Agency on data.gov.sg, made available under the terms of the Singapore Open Data Licence version 1.0 (https://data.gov.sg/open-data-licence). The Agency does not endorse our means.
Sources
- WMO Member Nations (each national weather service's own submission); archived by NOAA National Centers for Environmental Information. Attribution: WMO Member Nations (2023). WMO Climatological Standard Normals for 1991-2020 (NCEI Accession 0253808). Station files named in each record. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/800j-vn07. Accessed on the check date shown. Licence: No licence stated. Published by NOAA NCEI for WMO; citation requested. Checked .
- NOAA Solar Calculator equations, computed locally, NOAA Global Monitoring Laboratory (method); City by Month (computation). Attribution: Computed with the NOAA Solar Calculator method (no NOAA endorsement implied). Licence: Method, not data. Checked .
- holidays Python library, run locally. Attribution: holidays library, Vacanza team. Licence: MIT. Checked .
Cite this page: City by Month. "Hiroshima in June: weather, daylight, holidays". https://citybymonth.com/cities/japan/hiroshima/june/. Last updated 5 November 2026.