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Hiroshima Climate & Temperature

⛺ Hiroshima has a humid subtropical climate that is mild with no dry season, constantly moist (year-round rainfall). Summers are hot and muggy with thunderstorms. Winters are mild with precipitation from mid-latitude cyclones. Seasonality is moderate. (Köppen-Geiger classification: Cfa).humid subtropical climate (Cfa)

⛳ Hiroshima is situated in or near the cool temperate wet forest biome.

🌡️ The average temperature is 15 degrees Celsius (59 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.

🐬 Average monthly temperatures vary by 22.9 °C (41.2°F). This indicates that the continentality type is continental, subtype subcontinental.

☔ Total annual precipitation averages 1554.3 mm (61.2 inches) which is equivalent to 1554.3 Litres/m² (38.12 Gallons/ft²).

Hiroshima Climate Graph

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In the winter time records indicate temperatures by day reach 9.5°C (49.2°F) on average falling to 1.2°C (34.2°F) overnight.

In spring time temperatures climb reaching 17.8°C (64°F) generally in the afternoon with overnight lows of 8.5°C (47.4°F).

During summer average high temperatures are 28.5°C (83.3°F) and average low temperatures are 21.4°C (70.6°F).

Come autumn/ fall temperatures decrease achieving average highs of 21.8°C (71.3°F) during the day and lows of 13°C (55.5°F) generally shortly after sunrise.

✨ The longest day of the year is 14:18 long on the 22 of June and the shortest day is 9:41 long on the 21 of December.

🌞 On average there are 2264 hours of sunshine per year. Visit the sunshine and daylight section to check monthly details including how high in the sky the sun reaches each month.

🐇Were you to burrow down through the centre of the Earth from Hiroshima you would pop up nearest to the climate station at Sta. Vit. Palmar, Brazil where you would find a Humid subtropical climate (Warm temperate moist forest biome).

🌍Hiroshima, Japan is at 34°23'N, 132°28'E, 54 m (177 ft). Check the location on the map.

Hiroshima Climate Table

 Climate Variable Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecAnnual
 
Average Max Temperature °C ( °F) 8 (47) 9 (48) 13 (55) 18 (65) 23 (73) 25 (78) 29 (85) 31 (88) 27 (81) 22 (72) 16 (62) 11 (52) 19 (67)
 
Average Temperature °C ( °F) 4 (39) 5 (40) 8 (46) 13 (56) 18 (64) 21 (71) 26 (78) 27 (80) 23 (73) 17 (63) 11 (53) 7 (44) 15 (59)
 
Average Min Temperature °C ( °F) 0 (33) 1 (33) 3 (38) 9 (48) 13 (56) 18 (64) 23 (73) 24 (74) 19 (67) 13 (55) 7 (45) 3 (37) 11 (52)
 
Average Precipitation mm (in) 45 (2) 59 (2) 109 (4) 164 (6) 154 (6) 272 (11) 246 (10) 117 (5) 175 (7) 103 (4) 73 (3) 39 (2) 1554 (61)
Number of Wet Days (probability of rain on a day %) 8 (26) 8 (28) 10 (32) 10 (33) 11 (35) 12 (40) 13 (42) 8 (26) 12 (40) 6 (19) 5 (17) 5 (16) 108 (30)
Average Sunlight Hours/ Day 4h 42' 5h 24' 6h 03' 6h 50' 7h 09' 6h 22' 6h 48' 8h 00' 5h 56' 6h 07' 5h 54' 5h 00' 6h 11'
Average Daylight Hours/ Day 10h 07' 10h 53' 11h 54' 13h 00' 13h 56' 14h 24' 14h 11' 13h 24' 12h 20' 11h 14' 10h 19' 9h 52' 12h 00'
Percentage of Sunny (Cloudy) Daylight Hours 47 (53) 50 (50) 52 (48) 53 (47) 52 (48) 45 (55) 48 (52) 60 (40) 49 (51) 55 (45) 58 (42) 51 (49) 52 (48)
Sun altitude at solar noon on the 21st day (°). 35.6 44.9 55.7 67.4 75.7 79 76 67.8 56.3 44.8 35.6 32.2 55.9

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