Updated: 2026-08-13
If you are planning a trip to Manchester and want to dodge the heaviest rain, mark November on your calendar as the month to reconsider. According to the Met Office's long-term records from the Rochdale station, November brings an average of 4.0 mm of precipitation per day — the highest of any month in the year. That is the figure that stands out across the entire 1947–2025 dataset, and it is the one that should shape your travel plans if dry days matter to you.
The data behind this comes from the Met Office's national weather station network, specifically the Rochdale station (station ID 01125), which serves as a reliable reference for the Greater Manchester area. The records span from 1947-07-01 to 2025-12-31, giving us nearly eight decades of daily precipitation measurements to work with. When we calculate the average daily rainfall for each calendar month across that entire period, a clear seasonal pattern emerges — and it is not the one many visitors expect.
Contrary to the popular image of Manchester as a city drenched year-round, the wettest period is actually concentrated in the autumn and early winter. November leads the pack, followed closely by December at 3.8 mm per day and October at 3.7 mm per day. January rounds out the top four with 3.5 mm. If you are flexible with your travel dates, avoiding these four months will make a measurable difference to your chances of staying dry.
The table below shows the complete monthly pattern. Each value represents the historical mean daily precipitation for that month, calculated from the full Met Office MIDAS series.
| Month | Mean Daily Precipitation (mm) |
|---|---|
| January | 3.5 |
| February | 3.0 |
| March | 2.7 |
| April | 2.4 |
| May | 2.3 |
| June | 2.8 |
| July | 2.7 |
| August | 3.4 |
| September | 3.4 |
| October | 3.7 |
| November | 4.0 |
| December | 3.8 |
For travellers seeking the best odds of sunshine, the data points clearly to May as the driest month, with an average of just 2.3 mm per day. April follows closely at 2.4 mm. This means that a trip planned for late April or May offers the lowest average daily rainfall of the entire year. The difference between May and November is substantial — nearly double the daily precipitation — and it is a gap that becomes very noticeable when you are walking the streets of Manchester.
Interestingly, the summer months sit in the middle ground. June average 2.8 mm per day, while July and March tie at 2.7 mm. August and September both come in at 3.4 mm, which is closer to the autumn figures than many visitors might expect. So while summer is far from the wettest season, it is not the driest either — the late spring window is where the numbers are most favourable.
If you are organising an outdoor event, a walking holiday, or a city break where rain would spoil the experience, the strategy is clear from the data. Avoid November, December, and October if your dates are flexible. These three months alone account for the highest average daily precipitation in the annual cycle. January, at 3.5 mm, is not far behind and should also be treated with caution.
On the flip side, May and April are your best bets. With averages of 2.3 and 2.4 mm respectively, they offer the most reliable dry conditions across the eight-decade record. This pattern reflects the broader UK climate, where the autumn and early winter months typically see more frequent and heavier rainfall as Atlantic weather systems roll in, while late spring tends to sit under more stable atmospheric conditions.
It is worth noting that these are monthly averages calculated over a very long period. Individual years can and do vary — some Novembers are drier than some Mays. But if you are planning months in advance and want to make a statistically informed choice, the Met Office's long-term record from Rochdale gives you a clear answer: travel in May if you want to avoid the rain, and steer clear of November if you want the best chance of dry days in Manchester.
Source: Met Office — Rochdale station, period 1947–2025.
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© 2026 HistoClima · data: Met Office (OGL v3.0) · not affiliated with Met Office · citation permitted with source.