| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 27.2° | — | 38.2mm | 6.7 | 86 |
| February | 28.1° | 22.7° | 10.3mm | 2.8 | 90 |
| March | 29.6° | 23.2° | 42.6mm | 4.1 | 81 |
| April | 31.1° | 25.1° | 54.3mm | 4.5 | 75 |
| May | 32.4° | 26.6° | 81.8mm | 8.3 | 62 |
| June | 32.8° | 26° | 31.5mm | 5.1 | 67 |
| July | 32.6° | — | 51.5mm | 7.3 | 63 |
| August | 32.6° | 25.6° | 56.7mm | 8.4 | 61 |
| September | 31.9° | 24.9° | 192.4mm | 13.8 | 53 |
| October | 30.1° | — | 288.1mm | 14.7 | 58 |
| November | 28.7° | 23.6° | 397.7mm | 16.5 | 63 |
| December | 27.5° | — | 167.7mm | 13.6 | 71 |
January in Nha Trang averages a daily high of 27.2°C. Expect roughly 6.7 wet days totalling 38.2mm. Comfortable conditions for being outdoors all day.
February in Nha Trang averages a daily high of 28.1°C with nights around 22.7°C. Rain is rare — about 2.8 wet days and 10.3mm across the month. Comfortable conditions for being outdoors all day.
March in Nha Trang averages a daily high of 29.6°C with nights around 23.2°C. Expect roughly 4.1 wet days totalling 42.6mm. Comfortable conditions for being outdoors all day.
April in Nha Trang averages a daily high of 31.1°C with nights around 25.1°C. Expect roughly 4.5 wet days totalling 54.3mm. Comfortable conditions for being outdoors all day.
May in Nha Trang averages a daily high of 32.4°C with nights around 26.6°C. Expect roughly 8.3 wet days totalling 81.8mm. Generally workable, with some weather to plan around.
June in Nha Trang averages a daily high of 32.8°C with nights around 26°C. Expect roughly 5.1 wet days totalling 31.5mm. Generally workable, with some weather to plan around.
July in Nha Trang averages a daily high of 32.6°C. Expect roughly 7.3 wet days totalling 51.5mm. Generally workable, with some weather to plan around.
August in Nha Trang averages a daily high of 32.6°C with nights around 25.6°C. Expect roughly 8.4 wet days totalling 56.7mm. Generally workable, with some weather to plan around.
September in Nha Trang averages a daily high of 31.9°C with nights around 24.9°C. Expect roughly 13.8 wet days totalling 192.4mm. Demanding conditions — pack for it and plan indoor options.
October in Nha Trang averages a daily high of 30.1°C. Expect roughly 14.7 wet days totalling 288.1mm. Generally workable, with some weather to plan around.
November in Nha Trang averages a daily high of 28.7°C with nights around 23.6°C. Expect roughly 16.5 wet days totalling 397.7mm. Generally workable, with some weather to plan around.
December in Nha Trang averages a daily high of 27.5°C. Expect roughly 13.6 wet days totalling 167.7mm. Generally workable, with some weather to plan around.
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. Nha Trang peaks at 90.
Based on 30 years of records, January–February scores highest for comfort in Nha Trang, balancing daytime temperature against rainfall.
June is the warmest, averaging a daily high of 32.8°C.
November is the wettest, averaging 397.7mm of rain across roughly 16.5 wet days.
January is the coolest month, with average daily highs around 27.2°C.