Longyan climate
Longyan (Fujian, China) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 21 °C69 °F, and about 1,638 mm64 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Longyan climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1865 | 542 | 1253 | 652.5 |
| Feb | 2169 | 846 | 1458 | 702.8 |
| Mar | 2373 | 1151 | 1762 | 1566.1 |
| Apr | 2780 | 1559 | 2169 | 1726.8 |
| May | 2984 | 1967 | 2476 | 26010 |
| Jun | 3087 | 2272 | 2679 | 28511 |
| Jul | 3290 | 2374 | 2882 | 1485.8 |
| Aug | 3290 | 2373 | 2882 | 1897.4 |
| Sep | 3188 | 2170 | 2679 | 1385.4 |
| Oct | 2882 | 1661 | 2271 | 461.8 |
| Nov | 2475 | 1253 | 1864 | 662.6 |
| Dec | 1967 | 643 | 1355 | 441.7 |
| Year | 3290 | 542 | 2169 | 1,63864 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 79% | 64% | 2.7 | 10:44 |
| Feb | 81% | 72% | 2.9 | 11:17 |
| Mar | 82% | 76% | 3.2 | 11:57 |
| Apr | 83% | 79% | 3.7 | 12:43 |
| May | 84% | 82% | 3.9 | 13:21 |
| Jun | 86% | 85% | 4.3 | 13:41 |
| Jul | 83% | 72% | 5.4 | 13:33 |
| Aug | 84% | 72% | 4.9 | 13:00 |
| Sep | 83% | 69% | 4.3 | 12:16 |
| Oct | 81% | 54% | 3.9 | 11:31 |
| Nov | 81% | 59% | 3.1 | 10:53 |
| Dec | 78% | 56% | 2.8 | 10:35 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Longyan is like
The warmest month is July, with an average high of 32 °C90 °F and a low of 23 °C74 °F. The coldest is January, when highs average 18 °C65 °F and lows 5 °C42 °F. There is a clear seasonal cycle, with 15.8 °C28.4 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,638 mm64 in of precipitation per year. The wettest three-month stretch is April–June, which brings 44% of the annual total. The wettest month is June (285 mm11 in), the driest is December (44 mm1.7 in).
Relative humidity ranges from 78% in December to 86% in June. The clearest skies (lowest average cloud amount, 54%) are typical of October. Average wind speed near the ground ranges from 0 km/h (0 mph) in June to 1 km/h (0 mph) in January. Daylight lasts from about 10.6 hours in December to 13.7 hours in June.
Best time to visit Longyan
Based on these averages, the most comfortable months for sightseeing and outdoor activities are October–February: average highs of 18 °C65 °F to 28 °C82 °F with 44 mm1.7 in to 70 mm2.8 in of precipitation per month.
The most challenging month is June, which is hot, with average highs of 30 °C87 °F, very wet (285 mm11 in) and humid (86% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Longyan
- Winter (December–February) — highs 1865 to 21 °C69 °F, lows 542 to 8 °C46 °F, about 60 mm2.3 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2373 to 29 °C84 °F, lows 1151 to 19 °C67 °F, about 196 mm7.7 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Summer (June–August) — highs 3087 to 32 °C90 °F, lows 2272 to 23 °C74 °F, about 207 mm8.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 2475 to 31 °C88 °F, lows 1253 to 21 °C70 °F, about 83 mm3.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Longyan compares
Compared with Xiamen, about 126 km to the southeast, Longyan is on average 1.1 °C2 °F cooler and receives 17% more precipitation (1,638 mm64 in vs 1,402 mm55 in). The difference is largest in December (2.7 °C4.8 °F cooler).
Of the 547 places in China covered by World Climates, Longyan is the 74th warmest by annual mean temperature and the 71st wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern: Jacksonville (United States, Cfa), Gainesville (United States, Cfa) and New Orleans (United States, Cfa).
Nearby places
- Zhangzhou 90 km · 22 °C72 °F · 1,497 mm59 in
- Meizhou 126 km · 22 °C72 °F · 1,582 mm62 in
- Xiamen 126 km · 22 °C71 °F · 1,402 mm55 in
- Sanming 144 km · 21 °C69 °F · 1,685 mm66 in
- Quanzhou 159 km · 21 °C70 °F · 1,532 mm60 in
- Xingning 167 km · 22 °C71 °F · 1,641 mm65 in
- Shuizhai 180 km · 22 °C71 °F · 1,641 mm65 in
- Shantou 194 km · 23 °C73 °F · 1,478 mm58 in
Frequently asked questions
What is the warmest month in Longyan?
July is the warmest month in Longyan, with an average high of 32 °C (90 °F) and an average low of 23 °C (74 °F).
What is the coldest month in Longyan?
January is the coldest month, with an average high of 18 °C (65 °F) and an average low of 5 °C (42 °F).
When does it rain the most in Longyan?
June is the wettest month with about 285 mm (11.2 in) of precipitation; December is the driest with about 44 mm (1.7 in).
What is the best time to visit Longyan?
Judging by long-term averages, the most comfortable months are October–February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 655 m, while Longyan lies at about 318 m. Temperatures on this page were therefore adjusted by +2.2 °C3.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.