Climate averages 1991–2020
Nakatsu weather
in September.
A warm, wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Nakatsu: daytime highs average 27.1°C and nights cool to about 21.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 167 mm of rain on roughly 13 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Yukuhashi (24 km away). In September its highs average 26.7°C, about as warm as Nakatsu, with 157 mm of rain.
Among the 303 cities listed in Japan, Nakatsu ranks joint 42nd of 303 for the warmest September highs and joint 66th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Nakatsu is 1.4°C warmer than that mean.
From September to October, average highs fall by 5.1°C to 22.0°C, and monthly rainfall falls from 167 mm to 111 mm.
The annual picture
September 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
Nakatsu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.7°C2.5°C | 2.5°C | 61 | 8.4 | 10.210 h |
| February | 10.0°C2.7°C | 2.7°C | 73 | 9.2 | 11.011 h |
| March | 13.7°C5.3°C | 5.3°C | 112 | 11.5 | 12.012 h |
| April | 18.9°C9.9°C | 9.9°C | 125 | 10.7 | 13.013 h |
| May | 23.5°C15.1°C | 15.1°C | 143 | 11.0 | 13.914 h |
| June | 26.3°C19.6°C | 19.6°C | 282 | 15.4 | 14.314 h |
| July | 30.0°C23.8°C | 23.8°C | 221 | 16.1 | 14.114 h |
| August | 30.9°C24.6°C | 24.6°C | 144 | 14.5 | 13.413 h |
| September, selected | 27.1°C21.1°C | 21.1°C | 167 | 13.1 | 12.412 h |
| October | 22.0°C15.6°C | 15.6°C | 111 | 8.1 | 11.411 h |
| November | 16.6°C9.9°C | 9.9°C | 75 | 8.0 | 10.510 h |
| December | 11.0°C4.7°C | 4.7°C | 61 | 8.5 | 10.010 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
September in nearby cities
- Yukuhashi in SeptemberJapan · 24 kmHigh 26.7°C · Low 20.8°C · 157 mm rain
- Ube in SeptemberJapan · 39 kmHigh 26.4°C · Low 21.4°C · 161 mm rain
- Kitakyushu in SeptemberJapan · 42 kmHigh 26.2°C · Low 21.2°C · 162 mm rain
- Beppu in SeptemberJapan · 46 kmHigh 27.0°C · Low 21.3°C · 201 mm rain
- Iizuka in SeptemberJapan · 47 kmHigh 27.4°C · Low 20.3°C · 162 mm rain
- Ōita in SeptemberJapan · 56 kmHigh 26.6°C · Low 21.0°C · 201 mm rain
- Tsurusaki in SeptemberJapan · 61 kmHigh 26.2°C · Low 21.4°C · 192 mm rain
- Hōfu in SeptemberJapan · 61 kmHigh 27.1°C · Low 20.7°C · 156 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 Nakatsu) is explained once on the Nakatsu year overview and on the Sources, method and limits page.