Climate averages 1991–2020
Iwaki weather
in March.
A cool, wet month: the 9th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Iwaki: daytime highs average 10.7°C and nights cool to about 3.1°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 125 mm of rain on roughly 12 days, which makes March a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.
The nearest other city in this atlas is Sukagawa (51 km away). In March its highs average 8.6°C, 2.1°C cooler than Iwaki, with 91 mm of rain.
Among the 303 cities listed in Japan, Iwaki ranks 238th of 303 for the warmest March highs and joint 183rd of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Iwaki is 0.8°C cooler than that mean.
From March to April, average highs rise by 4.8°C to 15.5°C, and monthly rainfall rises from 125 mm to 134 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Iwaki climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.9°C1.1°C | 1.1°C | 71 | 7.9 | 9.910 h |
| February | 7.4°C0.8°C | 0.8°C | 69 | 8.0 | 10.811 h |
| March, selected | 10.7°C3.1°C | 3.1°C | 125 | 12.1 | 11.912 h |
| April | 15.5°C7.7°C | 7.7°C | 134 | 11.9 | 13.113 h |
| May | 19.8°C12.6°C | 12.6°C | 145 | 12.0 | 14.114 h |
| June | 22.6°C16.8°C | 16.8°C | 146 | 13.7 | 14.715 h |
| July | 26.0°C20.7°C | 20.7°C | 175 | 14.5 | 14.414 h |
| August | 27.5°C22.3°C | 22.3°C | 126 | 11.8 | 13.614 h |
| September | 24.5°C19.4°C | 19.4°C | 192 | 14.1 | 12.512 h |
| October | 19.6°C14.1°C | 14.1°C | 223 | 13.4 | 11.311 h |
| November | 14.6°C8.3°C | 8.3°C | 111 | 9.8 | 10.210 h |
| December | 9.4°C3.5°C | 3.5°C | 73 | 8.6 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Sukagawa in MarchJapan · 51 kmHigh 8.6°C · Low -0.6°C · 91 mm rain
- Hitachi in MarchJapan · 54 kmHigh 11.1°C · Low 3.5°C · 127 mm rain
- Kōriyama in MarchJapan · 59 kmHigh 8.4°C · Low -0.7°C · 86 mm rain
- Nasushiobara in MarchJapan · 73 kmHigh 9.3°C · Low -0.2°C · 111 mm rain
- Ōtawara in MarchJapan · 78 kmHigh 10.0°C · Low -0.1°C · 104 mm rain
- Hitachi-Naka in MarchJapan · 79 kmHigh 11.5°C · Low 3.9°C · 115 mm rain
- Fukushima in MarchJapan · 86 kmHigh 9.0°C · Low -1.0°C · 90 mm rain
- Mito in MarchJapan · 87 kmHigh 11.8°C · Low 3.1°C · 126 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Iwaki) is explained once on the Iwaki year overview and on the Sources, method and limits page.