Luxembourg · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Luxembourg are June, July and August, when daytime temperatures are agreeable and rainfall is relatively low.
Luxembourg sees its warmest weather in July, when daytime highs average around 24°C, and its coolest in January (around 4°C).
Annual precipitation totals roughly 831mm — December is typically the wettest month (~90mm) and April the driest (~49mm).
Rainfall is spread fairly evenly through the year, so no single season is dramatically wetter than the rest.
July is the sunniest month, with about 258 hours of sunshine.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 61 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 4° / -1°C | 72mm | 🤔 Fair |
| February | 5° / -1°C | 60mm | 🤔 Fair |
| March | 10° / 2°C | 57mm | 🤔 Fair |
| April | 14° / 5°C | 49mm | 👍 Good |
| May | 18° / 9°C | 73mm | 👍 Good |
| June | 22° / 12°C | 73mm | 🌟 Great |
| July | 24° / 14°C | 72mm | 🌟 Great |
| August | 24° / 14°C | 72mm | 🌟 Great |
| September | 19° / 10°C | 67mm | 🌟 Great |
| October | 14° / 7°C | 76mm | 🤔 Fair |
| November | 8° / 3°C | 72mm | 🤔 Fair |
| December | 5° / 0°C | 90mm | ⚠️ Challenging |
January in Luxembourg is cold, with average daytime highs around 4°C (39°F) and nighttime lows near -1°C (30°F). Expect roughly 72mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 52 hours of sunshine over the month (~2h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf
February in Luxembourg is cold, with average daytime highs around 5°C (41°F) and nighttime lows near -1°C (31°F). Expect roughly 60mm of precipitation spread over about 10 rainy days, with little rainfall.
☀️ About 80 hours of sunshine over the month (~3h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf
March in Luxembourg is chilly, with average daytime highs around 10°C (50°F) and nighttime lows near 2°C (36°F). Expect roughly 57mm of precipitation spread over about 10 rainy days, with little rainfall.
☀️ About 137 hours of sunshine over the month (~5h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
April in Luxembourg is mild, with average daytime highs around 14°C (58°F) and nighttime lows near 5°C (41°F). Expect roughly 49mm of precipitation spread over about 9 rainy days, with little rainfall.
☀️ About 198 hours of sunshine over the month (~7h/day).
🎒 What to pack — light jacket · layers for cool evenings
May in Luxembourg is mild, with average daytime highs around 18°C (65°F) and nighttime lows near 9°C (48°F). Expect roughly 73mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 226 hours of sunshine over the month (~8h/day).
🎒 What to pack — light jacket · layers for cool evenings
June in Luxembourg is pleasantly warm, with average daytime highs around 22°C (71°F) and nighttime lows near 12°C (53°F). Expect roughly 73mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 241 hours of sunshine over the month (~8h/day).
🎒 What to pack — light layers · comfortable walking shoes
July in Luxembourg is pleasantly warm, with average daytime highs around 24°C (75°F) and nighttime lows near 14°C (57°F). Expect roughly 72mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 258 hours of sunshine over the month (~9h/day).
🎒 What to pack — light layers · comfortable walking shoes
August in Luxembourg is pleasantly warm, with average daytime highs around 24°C (74°F) and nighttime lows near 14°C (56°F). Expect roughly 72mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
☀️ About 237 hours of sunshine over the month (~8h/day).
🎒 What to pack — light layers · comfortable walking shoes
September in Luxembourg is pleasantly warm, with average daytime highs around 19°C (66°F) and nighttime lows near 10°C (51°F). Expect roughly 67mm of precipitation spread over about 9 rainy days, with a moderate amount of rain.
☀️ About 175 hours of sunshine over the month (~6h/day).
🎒 What to pack — light layers · comfortable walking shoes
October in Luxembourg is chilly, with average daytime highs around 14°C (56°F) and nighttime lows near 7°C (44°F). Expect roughly 76mm of precipitation spread over about 10 rainy days, with a moderate amount of rain.
☀️ About 107 hours of sunshine over the month (~4h/day).
🎒 What to pack — jacket or coat · long-sleeve layers
November in Luxembourg is cold, with average daytime highs around 8°C (46°F) and nighttime lows near 3°C (37°F). Expect roughly 72mm of precipitation spread over about 12 rainy days, with a moderate amount of rain.
☀️ About 51 hours of sunshine over the month (~2h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf
December in Luxembourg is cold, with average daytime highs around 5°C (40°F) and nighttime lows near 0°C (32°F). Expect roughly 90mm of precipitation spread over about 13 rainy days, with a moderate amount of rain.
☀️ About 42 hours of sunshine over the month (~1h/day).
🎒 What to pack — warm coat · sweaters and layers · scarf