| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 19.7° | 15.1° | 98.6mm | 11.8 | 75 |
| February | 20.2° | 14.5° | 120.1mm | 11.3 | 77 |
| March | 21.9° | 17° | 141.7mm | 12 | 76 |
| April | 24.4° | 19.2° | 180.7mm | 11.5 | 77 |
| May | 27.1° | 21.7° | 256.1mm | 13.4 | 73 |
| June | 29.8° | 25.1° | 369.8mm | 13.7 | 61 |
| July | 31.9° | 26.6° | 188.1mm | 11.4 | 58 |
| August | 31.8° | 26.5° | 263.2mm | 15 | 51 |
| September | 30.7° | 25.5° | 251.5mm | 13.7 | 58 |
| October | 28.3° | 23.6° | 180.4mm | 11.3 | 72 |
| November | 25.2° | 20.5° | 137.8mm | 10.3 | 79 |
| December | 21.6° | 16.7° | 116.1mm | 11 | 78 |
January in Naha averages a daily high of 19.7°C with nights around 15.1°C. Expect roughly 11.8 wet days totalling 98.6mm. Comfortable conditions for being outdoors all day.
February in Naha averages a daily high of 20.2°C with nights around 14.5°C. Expect roughly 11.3 wet days totalling 120.1mm. Comfortable conditions for being outdoors all day.
March in Naha averages a daily high of 21.9°C with nights around 17°C. Expect roughly 12 wet days totalling 141.7mm. Comfortable conditions for being outdoors all day.
April in Naha averages a daily high of 24.4°C with nights around 19.2°C. Expect roughly 11.5 wet days totalling 180.7mm. Comfortable conditions for being outdoors all day.
May in Naha averages a daily high of 27.1°C with nights around 21.7°C. Expect roughly 13.4 wet days totalling 256.1mm. Generally workable, with some weather to plan around.
June in Naha averages a daily high of 29.8°C with nights around 25.1°C. Expect roughly 13.7 wet days totalling 369.8mm. Generally workable, with some weather to plan around.
July in Naha averages a daily high of 31.9°C with nights around 26.6°C. Expect roughly 11.4 wet days totalling 188.1mm. Generally workable, with some weather to plan around.
August in Naha averages a daily high of 31.8°C with nights around 26.5°C. Expect roughly 15 wet days totalling 263.2mm. Demanding conditions — pack for it and plan indoor options.
September in Naha averages a daily high of 30.7°C with nights around 25.5°C. Expect roughly 13.7 wet days totalling 251.5mm. Generally workable, with some weather to plan around.
October in Naha averages a daily high of 28.3°C with nights around 23.6°C. Expect roughly 11.3 wet days totalling 180.4mm. Generally workable, with some weather to plan around.
November in Naha averages a daily high of 25.2°C with nights around 20.5°C. Expect roughly 10.3 wet days totalling 137.8mm. Comfortable conditions for being outdoors all day.
December in Naha averages a daily high of 21.6°C with nights around 16.7°C. Expect roughly 11 wet days totalling 116.1mm. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Naha peaks at 79.
Based on 30 years of records, October–May scores highest for comfort in Naha, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 31.9°C.
June is the wettest, averaging 369.8mm of rain across roughly 13.7 wet days.
January is the coolest month, with average daily highs around 19.7°C.