Hadano weather in August

In August, Hadano has daytime highs averaging 28 °C, nights around 23 °C, with 15 wet days, and a sea temperature of 26 °C. Figures are 1991–2020 climate normals.

  1. Jan
  2. Feb
  3. Mar
  4. Apr 13°
  5. May 17°
  6. Jun 21°
  7. Jul 25°
  8. Aug 26°
  9. Sep 23°
  10. Oct 17°
  11. Nov 12°
  12. Dec

Daily temperatures through August

20° 26° 32° 18152229
Daily high Daily low Day of month on the horizontal axis. Highs peak at 29.3 °C and lows bottom out at 22.5 °C.

How August develops

Averages for the first, middle and last part of the month, from daily 1991–2020 normals. Chance of rain is the share of years in which that calendar day recorded more than 1 mm.

Days Avg high Avg low Chance of rain
1–10 August 28.8 °C 23.6 °C 46 %
11–20 August 28.7 °C 23.5 °C 50 %
21–31 August 28.0 °C 22.9 °C 50 %
0% 50% 100% 1 5 10 15 20 25 30
Chance of a wet day (over 1 mm) by date in August. Wettest date over the 30 years: August 12, at 63 %. Single dates are noisy — read the shape, not the spikes.

What to expect

Measure Typical August Share of the month
Days above 25 °C 29 of 31 92 %
Days above 30 °C 7.7 of 31 25 %
Days below 0 °C 0 of 31 0 %
Days with more than 1 mm rain 15 of 31 49 %

Conditions in August

MeasureAverage
Mean temperature 26 °C
Record high (1991–2020) 34 °C
Record low (1991–2020) 16 °C
Relative humidity 86 %
Wind speed 12 km/h
Cloud cover 67 %

August compared with the months around it

Month Avg high Rainfall Cloud
June 23.7 °C 213 mm 83 %
July 27.4 °C 206 mm 76 %
August 28.5 °C 163 mm 67 %
September 25.4 °C 235 mm 70 %
October 20.4 °C 225 mm 64 %

See all twelve months for Hadano

QuestionsAugust in Hadano, answered

How warm is Hadano in August?

Daily highs average 28 °C and nights fall to about 23 °C, a spread of 5.2 °C between afternoon and dawn. That makes August the 1st warmest month of the year here.

Does it rain much in Hadano in August?

August averages 163 mm of rain, spread over about 15 of the 31 days — 49 % of the month. Cloud cover averages 67 % of the sky.

Is the sea warm enough to swim in August?

The sea averages 26 °C off Hadano in August. Most people find water below 20 °C bracing and above 25 °C comfortable for a long swim; this figure is a monthly surface average, so a sheltered bay on a still afternoon can be warmer.

How long are the days in August?

Hadano averages 14 hours between sunrise and sunset in August. Day length is computed from latitude and date, so it is exact rather than modelled — but it says nothing about how much of that time is sunny.

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: daylight hours, beach and comfort scores, monthly rankings, threshold day counts, chance of a wet day by date, ten-day averages within the month. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.