Renaissance chateaux strung along a broad, slow river, best seen by bicycle. Daytime highs in the Loire Valley run from about 8 °C in January to 25 °C in July, an annual range of roughly 17 °C.
Measured against a city trip, the conditions hold up April to October. May is the most consistent single month: highs near 19 °C, nights around 10 °C, and roughly 69 mm of rain across the month.
The binding constraint here is temperature — that is what rules months out, not any composite judgement. January is the weakest month on these criteria.
Month by month
| Month | High °C | Low °C | Precip mm | Wet days |
|---|---|---|---|---|
| January | 8 | 2 | 69 | 12.3 |
| February | 9 | 3 | 56 | 10.8 |
| March | 12 | 4 | 57 | 11.3 |
| April | 16 | 7 | 60 | 11.3 |
| May | 19 | 10 | 69 | 12.2 |
| June | 23 | 14 | 60 | 10.0 |
| July | 25 | 15 | 47 | 8.8 |
| August | 25 | 15 | 46 | 8.1 |
| September | 22 | 13 | 58 | 8.4 |
| October | 17 | 10 | 72 | 11.9 |
| November | 12 | 6 | 71 | 12.4 |
| December | 9 | 3 | 75 | 12.6 |
Ticked rows are months where every hard requirement for a city trip is met across at least half the month.
Open Loire Valley on the map →Nearby regions
Figures are 30-year climatology sampled at Tours, Amboise, Blois, Angers and Saumur, averaged across those locations, from ERA5-Land reanalysis fitted with a harmonic seasonal cycle and a trend term, evaluated for 2026. Sampling named towns rather than averaging the whole region avoids blending valley and mountain conditions into a figure true of neither. Cells are about 0.08° wide, from ERA5-Land's 0.1° grid, which is itself driven by a 0.25° (~28 km) atmospheric reanalysis — so individual valleys, sheltered bays and single summits are not resolved. In steep terrain read these as conditions for the wider area rather than for one village. They describe typical conditions, not a forecast. Read how the climatology is built.