Climate averages 1991–2020
Ichihara weather
in March.
A cool, wet month: the 9th warmest and the joint 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Ichihara: daytime highs average 12.6°C and nights cool to about 5.9°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 149 mm of rain on roughly 13 days, which makes March a wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average March day.
The nearest other city in this atlas is Chiba (10 km away). In March its highs average 12.6°C, about as warm as Ichihara, with 149 mm of rain.
Among the 303 cities listed in Japan, Ichihara ranks joint 116th of 303 for the warmest March highs and joint 254th of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Ichihara is 1.1°C warmer than that mean.
From March to April, average highs rise by 4.6°C to 17.2°C, and monthly rainfall falls from 149 mm to 138 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
Ichihara climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.8°C3.0°C | 3.0°C | 86 | 7.8 | 10.010 h |
| February | 9.5°C3.1°C | 3.1°C | 83 | 8.8 | 10.911 h |
| March, selected | 12.6°C5.9°C | 5.9°C | 149 | 13.0 | 11.912 h |
| April | 17.2°C10.5°C | 10.5°C | 138 | 12.9 | 13.113 h |
| May | 21.5°C15.2°C | 15.2°C | 149 | 12.1 | 14.014 h |
| June | 24.4°C18.8°C | 18.8°C | 189 | 14.3 | 14.515 h |
| July | 28.1°C22.6°C | 22.6°C | 155 | 12.9 | 14.314 h |
| August | 29.5°C24.1°C | 24.1°C | 118 | 11.5 | 13.513 h |
| September | 26.1°C21.3°C | 21.3°C | 207 | 14.7 | 12.412 h |
| October | 21.0°C16.2°C | 16.2°C | 251 | 14.4 | 11.311 h |
| November | 16.1°C10.9°C | 10.9°C | 126 | 11.8 | 10.310 h |
| December | 11.3°C5.8°C | 5.8°C | 80 | 8.7 | 9.810 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
- Chiba in MarchJapan · 10 kmHigh 12.6°C · Low 5.1°C · 149 mm rain
- Narashino in MarchJapan · 19 kmHigh 12.5°C · Low 4.5°C · 120 mm rain
- Kisarazu in MarchJapan · 20 kmHigh 12.8°C · Low 6.0°C · 149 mm rain
- Mobara in MarchJapan · 22 kmHigh 12.7°C · Low 6.2°C · 135 mm rain
- Urayasu in MarchJapan · 23 kmHigh 12.6°C · Low 4.3°C · 120 mm rain
- Yachiyo in MarchJapan · 25 kmHigh 12.4°C · Low 4.5°C · 120 mm rain
- Sakura in MarchJapan · 26 kmHigh 12.5°C · Low 4.7°C · 125 mm rain
- Kamagaya in MarchJapan · 29 kmHigh 12.6°C · Low 3.8°C · 120 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 Ichihara) is explained once on the Ichihara year overview and on the Sources, method and limits page.
Chiba and Kisarazu lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.