Hiroshima in April
In April, Hiroshima has 141.0 mm (5.55 in) of rain, a daily high of 19.8 °C (67.6 °F) and a daily low of 10.1 °C (50.2 °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: April meets our rule. Expect 8.8 rain days and days that grow by 58 min.
What April is like in Hiroshima
- Cherry trees of many kinds bloom along the flower path at the Japan Mint's Hiroshima branch in mid-April. Each year the mint picks one kind as its flower of the year. Source: Japan Mint, checked .
- Drums of the Ikari Taiko group ring out at Hiroshima Toshogu's spring festival in mid-April. Children carry small portable shrines, and a plant market sets up. Source: Hiroshima Toshogu, checked .
- Wisteria hangs from trellises by the lookout tower and in the Japanese garden at Hiroshima Botanical Garden. It is expected to peak from late April to early May. Source: Hiroshima Botanical Garden (official; Wayback copy, live site is http only), checked .
Key figures
Weather in April, 1991-2020 means
- Daily high
- 19.8 °C (67.6 °F)
- Daily low
- 10.1 °C (50.2 °F)
- Rain
- 141.0 mm (5.55 in) in the month
- Sunshine
- 191.9 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 April the sea off Hiroshima averages 14.6 °C (58.3 °F), 1.5 °C warmer than in March.
Our 1991-2020 mean of NOAA OISST v2.1, checked .
Daylight on 15 April 2026
- Sunrise
- 05:40 local time
- Sunset
- 18:42 local time
- Day length
- 13 h 02 min
Day length 1-30 April: 12 h 33 min to 13 h 31 min, +58 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 | April | Rank |
|---|---|---|
| Daily high | 19.8 °C | 6th coldest |
| Daily low | 10.1 °C | 6th coldest |
| Rain | 141.0 mm | 5th wettest |
| Sunshine | 191.9 hours | 3rd sunniest |
| Day length | 13 h 02 min | 5th longest |
Equal values share a rank. How we rank months
Sunshine share: 49% of the 391.4 hours from sunrise to sunset in April. How we compute sunshine share
Hiroshima in April, on average: 8.8 rain days (1 mm or more).
WMO climate normals 1991-2020, as above, checked .
Day length: NOAA solar equations, checked .
Public holidays this month
| Date | Holiday | Scope |
|---|---|---|
| Wednesday | Showa Day | national |
| Date | Holiday | Scope |
|---|---|---|
| Thursday | Showa Day | national |
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 April by mean daily high. How we rank cities
Closest high and low in April: Tokyo (0.4 °C apart), Osaka (0.5), Barcelona (1.0).
| City | Gap from Hiroshima, °C | High, °C | Low, °C | Rain, mm | Sunshine, hours |
|---|---|---|---|---|---|
| Hiroshima (this page) | — | 19.8 | 10.1 | 141.0 | 191.9 |
| Tokyo (closest) | 0.4 | 19.4 | 9.8 | 133.7 | 178.8 |
| Osaka (closest) | 0.5 | 19.9 | 10.9 | 101.9 | 192.6 |
| Barcelona (closest) | 1.0 | 18.9 | 11.1 | 47.3 | 211.4 |
| Madrid | 1.3 | 19.1 | 8.2 | 46.1 | no data |
| Rome | 1.3 | 18.8 | 8.6 | no data | no data |
| Los Angeles | 2.6 | 22.4 | 12.7 | 17.5 | no data |
| Paris | 2.7 | 16.6 | 7.9 | 45.8 | 177.0 |
| Seville | 2.7 | 23.7 | 11.5 | 54.0 | 270.2 |
| New York | 2.9 | 16.6 | 7.5 | 103.9 | no data |
| Vienna | 3.0 | 17.2 | 6.7 | 41.8 | 216.5 |
| Buenos Aires | 3.7 | 23.2 | 14.1 | 130.3 | 168.1 |
| London | 4.0 | 15.1 | 6.9 | 42.5 | no data |
| Munich | 4.7 | 15.2 | 5.3 | 56.0 | 186.0 |
| Berlin | 4.8 | 15.1 | 5.2 | 29.3 | 192.0 |
| Prague | 5.0 | 15.4 | 4.6 | 26.8 | 190.8 |
| Amsterdam | 5.2 | 14.3 | 5.2 | 39.6 | 197.7 |
| Chicago | 5.2 | 15.0 | 4.6 | 95.3 | no data |
| Hong Kong | 8.4 | 25.6 | 21.1 | 153.0 | 113.2 |
| Singapore | 13.9 | 32.4 | 25.3 | 164.3 | no data |
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 April: weather, daylight, holidays". https://citybymonth.com/cities/japan/hiroshima/april/. Last updated 5 November 2026.