The most comfortable time to visit Sầm Sơn is from late November to mid March. For sun, aim for early November; for walking, go from mid January to early February.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
For sun, go in early November. It peaks in early November, at 58. That is a short window, about ten days a year. Avoid June to August for this: it falls to 6, mostly because it is too hot. The clearest skies come in May, when the sky is typically 68% covered at midday (often cloudy).
The being outside season here runs from late November to mid March. It peaks in early January, at 75. The weakest stretch is from late May to September, when it drops to 0, mostly because it is too hot.
For walking, go from mid January to early February, with a second spell in mid and late December. It peaks in mid January, at 64. Avoid late April to early October for this: it falls to 0, mostly because it is too warm.
The year, measured
The average temperature in Sầm Sơn over the whole year is 25°C. June is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 17°C. The rainy (wet) season in Sầm Sơn runs from May to October, peaking in September with a 63% chance of rain on a given day. The dry season is November to April; March is the driest month, at 19%. Winds in Sầm Sơn are highest in May, averaging 2.0 m/s (7 km/h), and lightest in September, at 1.7 m/s (6 km/h). The prevailing wind is from the E. The clearest skies in Sầm Sơn come in September, when the sky is typically 69% covered; March is the cloudiest month, at 89%.
Month by month Sầm Sơn climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 20°C | 17°C | 20°C | 24% | 88% | 1.8 m/s | 72 | 19 | 59 |
| February | 21°C | 17°C | 21°C | 23% | 86% | 1.8 m/s | 70 | 25 | 54 |
| March | 24°C | 20°C | 26°C | 19% | 89% | 1.8 m/s | 58 | 44 | 28 |
| April | 27°C | 23°C | 30°C | 31% | 82% | 1.9 m/s | 25 | 43 | 8 |
| May | 31°C | 26°C | 35°C | 44% | 72% | 2.0 m/s | 5 | 22 | 1 |
| June | 34°C | 28°C | 38°C | 52% | 70% | 2.0 m/s | 0 | 6 | 0 |
| July | 33°C | 28°C | 38°C | 58% | 72% | 1.9 m/s | 0 | 7 | 0 |
| August | 32°C | 27°C | 37°C | 60% | 75% | 1.8 m/s | 1 | 10 | 0 |
| September | 31°C | 26°C | 35°C | 63% | 69% | 1.7 m/s | 3 | 18 | 0 |
| October | 28°C | 24°C | 30°C | 55% | 73% | 2.0 m/s | 24 | 43 | 7 |
| November | 26°C | 21°C | 27°C | 36% | 72% | 1.9 m/s | 44 | 50 | 19 |
| December | 21°C | 17°C | 21°C | 26% | 79% | 1.8 m/s | 71 | 21 | 58 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Sầm Sơn weather by season
Year round, Sầm Sơn has days of about 20°C at their warmest in January, its coolest month, and 34°C in June, its warmest; the coolest hours of the day run from 17°C to 28°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around September and least likely around March. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Sầm Sơn weather in winterDecember to February
Winter in Sầm Sơn has typical daily highs of about 21°C and lows of about 17°C, with a 24% chance of rain on a given day.
Sầm Sơn weather in springMarch to May
Spring in Sầm Sơn has typical daily highs of about 27°C and lows of about 23°C, with a 32% chance of rain on a given day.
Sầm Sơn weather in summerJune to August
Summer in Sầm Sơn has typical daily highs of about 33°C and lows of about 28°C, with a 57% chance of rain on a given day.
Sầm Sơn weather in autumnSeptember to November
Autumn in Sầm Sơn has typical daily highs of about 28°C and lows of about 24°C, with a 51% chance of rain on a given day.
When is the rainy season in Sầm Sơn?
The rainy (wet) season in Sầm Sơn runs from May to October, peaking in September with a 63% chance of rain on a given day. The dry season is November to April; March is the driest month, at 19%.
What time of year is Sầm Sơn windiest?
Winds in Sầm Sơn are highest in May, averaging 2.0 m/s (7 km/h), and lightest in September, at 1.7 m/s (6 km/h). The prevailing wind is from the E.
What is the average temperature in Sầm Sơn year round?
The average temperature in Sầm Sơn over the whole year is 25°C. June is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 17°C.
Where to go instead in early June, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.